Android 主题背景颜色设置

添加依赖

implementation 'com.ashokvarma.android:bottom-navigation-bar:2.0.4'
//第三方实现底部导航

compile 'com.mikepenz:iconics-core:2.8.2@aar'
//icon 图片库

//选择需要依赖的图标库
implementation 'com.mikepenz:google-material-typeface:3.0.1.0.original@aar'
implementation 'com.mikepenz:fontawesome-typeface:4.7.0.0@aar'
implementation 'com.mikepenz:ionicons-typeface:2.0.1.2@aar'

//万能alertdialog颜色
implementation 'com.afollestad.material-dialogs:commons:0.9.6.0'
implementation 'com.afollestad.material-dialogs:core:0.9.6.0'

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />

public class FirstActivity extends AppCompatActivity implements BottomNavigationBar.OnTabSelectedListener,ColorChooserDialog.ColorCallback {


    @BindView(R.id.simp_gif)
    SimpleDraweeView simp_gif;
    @BindView(R.id.menu)
    ListView menu;
    @BindView(R.id.main_guanyu)
    IconicsTextView main_guanyu;
    @BindView(R.id.main_zhuti)
    IconicsTextView main_zhuti;
    @BindView(R.id.line)
    LinearLayout line;
    @BindView(R.id.content_layout)
    FrameLayout content_layout;
    @BindView(R.id.bottomNavigationBar)
    BottomNavigationBar bottomNavigationBar;
    @BindView(R.id.content_rela)
    RelativeLayout content_rela;
    @BindView(R.id.reside_layout)
    ResideLayout reside_layout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
        ButterKnife.bind(this);

        //沉浸式
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        //初始化数据
        initView();
        //初始化颜色
        initColor();
        //
    }

    private void initView() {


    }

    private void initColor() {
        main_zhuti.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //颜色的数组
                int[] primary = new int[]{
                        Color.parseColor("#F44336"),
                        Color.parseColor("#FF0000"),
                        Color.parseColor("#FFFF00"),
                        Color.parseColor("#00FF00"),
                        Color.parseColor("#0000FF"),
                        Color.parseColor("#00FFFF"),
                        Color.parseColor("#FF00FF"),
                        Color.parseColor("#ff6600"),
                        Color.parseColor("#ff9966"),
                        Color.parseColor("#cc0000"),
                        Color.parseColor("#993399"),
                        Color.parseColor("#cc6699"),
                        Color.parseColor("#ffccff"),
                        Color.parseColor("#cc66cc"),
                        Color.parseColor("#cc33cc"),
                        Color.parseColor("#00ff33"),
                        Color.parseColor("#3399cc"),
                        Color.parseColor("#0066ff"),
                        Color.parseColor("#0099ff"),
                        Color.parseColor("#00cc99")
                };

                //有些按钮是系统默认的
                new ColorChooserDialog.Builder(FirstActivity.this, R.string.color_palette)
                        .accentMode(true)//
                        .customColors(primary, null)//两个颜色数组
                        .dynamicButtonColor(true)//动态按钮颜色
                        .customButton(0)//设置颜色不显示
                        .cancelButton(R.string.cancle)
                        .doneButton(R.string.done)
                        .show(FirstActivity.this);//传入上下文

            }
        });

    }

    //颜色改变事件
    @Override
    public void onColorSelection(@NonNull ColorChooserDialog dialog, int selectedColor) {
        content_rela.setBackgroundColor(selectedColor);
        line.setBackgroundColor(selectedColor);

    }

    @Override
    public void onColorChooserDismissed(@NonNull ColorChooserDialog dialog) {

    }
    /**
     * 设置导航选中的事件
     */
    @Override
    public void onTabSelected(int position) {

    }
    /**
     * 设置未选中Fragment 事务
     */
    @Override
    public void onTabUnselected(int position) {

    }
    /**
     * 设置释放Fragment 事务
     */
    @Override
    public void onTabReselected(int position) {

    }
}

<com.example.asus.myapplication.utils.ResideLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:fresco="http://schemas.android.com/apk/res-auto"
    android:id="@+id/reside_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:id="@+id/line"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/bg_colorful"
        android:orientation="vertical">

        <View
            android:layout_width="match_parent"
            android:layout_height="15px" />
        
        <com.facebook.drawee.view.SimpleDraweeView
            android:id="@+id/simp_gif"
            android:layout_width="80dp"
            android:layout_height="100dp"
            android:layout_marginLeft="20px"
            fresco:actualImageScaleType="centerCrop"
            fresco:roundAsCircle="true" />

        <TextView
            android:layout_width="80dp"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20px"
            android:layout_marginTop="8px"
            android:gravity="center"
            android:text="小闲猫"
            android:textColor="#fff" />

        <ListView
            android:id="@+id/menu"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20px"
            android:layout_marginTop="8px" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginBottom="30dp"
            android:layout_marginLeft="20px"
            android:orientation="horizontal">

            <com.mikepenz.iconics.view.IconicsTextView
                android:id="@+id/main_guanyu"
                android:layout_width="60dp"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom"
                android:text="{faw_share} 关于"
                android:textColor="#fff" />

            <com.mikepenz.iconics.view.IconicsTextView
                android:id="@+id/main_zhuti"
                android:layout_width="60dp"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom"
                android:text="{faw_share} 主题"
                android:textColor="#fff" />

        LinearLayout>

    LinearLayout>

    <RelativeLayout
        android:id="@+id/content_rela"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/bg_colorful"
        android:orientation="vertical">

        <FrameLayout
            android:id="@+id/content_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        FrameLayout>

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="37px"
            android:layout_alignParentBottom="true"
            android:background="@drawable/bottom_bg">

            <com.ashokvarma.bottomnavigation.BottomNavigationBar
                android:id="@+id/bottomNavigationBar"
                android:layout_width="match_parent"
                android:layout_height="33px"
                android:layout_alignParentBottom="true"
                android:layout_centerVertical="true" />

        RelativeLayout>

    RelativeLayout>

com.example.asus.myapplication.utils.ResideLayout>

ResideLayout

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.asus.myapplication.utils;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.annotation.NonNull;
import android.support.v4.view.MotionEventCompat;
import android.support.v4.view.ViewCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.ViewDragHelper;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;

public class ResideLayout extends ViewGroup {
    private static final String TAG = "ResideLayout";

    /**
     * Default size of the overhang for DetailsBean pane in the open state.
     * At least this much of DetailsBean sliding pane will remain visible.
     * This indicates that there is more content available and provides
     * DetailsBean "physical" edge to grab to pull it closed.
     */
    private static final int DEFAULT_OVERHANG_SIZE = 80; // dp;

    /**
     * The fade color used for the sliding panel. 0 = no fading.
     */
    private int mSliderFadeColor = 0x99000000;

    /**
     * Minimum velocity that will be detected as DetailsBean fling
     */
    private static final int MIN_FLING_VELOCITY = 400; // dips per second

    /**
     * The fade color used for the panel covered by the slider. 0 = no fading.
     */
    private int mCoveredFadeColor = 0xcc000000;

    /**
     * The size of the overhang in pixels.
     * This is the minimum section of the sliding panel that will
     * be visible in the open state to allow for DetailsBean closing drag.
     */
    private final int mOverhangSize;

    /**
     * True if DetailsBean panel can slide with the current measurements
     */
    private boolean mCanSlide;

    /**
     * The child view that can slide, if any.
     */
    private View mSlideableView;

    /**
     * How far the panel is offset from its closed position.
     * range [0, 1] where 0 = closed, 1 = open.
     */
    private float mSlideOffset;

    /**
     * How far the non-sliding panel is parallaxed from its usual position when open.
     * range [0, 1]
     */
    private float mParallaxOffset;

    /**
     * How far in pixels the slideable panel may move.
     */
    private int mSlideRange;

    /**
     * A panel view is locked into internal scrolling or another condition that
     * is preventing DetailsBean drag.
     */
    private boolean mIsUnableToDrag;

    /**
     * Distance in pixels to parallax the fixed pane by when fully closed
     */
    private int mParallaxBy;

    private float mInitialMotionX;
    private float mInitialMotionY;

    private PanelSlideListener mPanelSlideListener;

    private final ViewDragHelper mDragHelper;

    /**
     * Stores whether or not the pane was open the last time it was slideable.
     * If open/close operations are invoked this state is modified. Used by
     * instance state save/restore.
     */
    private boolean mPreservedOpenState;
    private boolean mFirstLayout = true;

    private final ArrayList mPostedRunnables =
            new ArrayList();

    static final SlidingPanelLayoutImpl IMPL;

    static {
        final int deviceVersion = Build.VERSION.SDK_INT;
        if (deviceVersion >= 17) {
            IMPL = new SlidingPanelLayoutImplJBMR1();
        } else if (deviceVersion >= 16) {
            IMPL = new SlidingPanelLayoutImplJB();
        } else {
            IMPL = new SlidingPanelLayoutImplBase();
        }
    }

    /**
     * Listener for monitoring events about sliding panes.
     */
    public interface PanelSlideListener {
        /**
         * Called when DetailsBean sliding pane's position changes.
         * @param panel The child view that was moved
         * @param slideOffset The new offset of this sliding pane within its range, from 0-1
         */
        public void onPanelSlide(View panel, float slideOffset);
        /**
         * Called when DetailsBean sliding pane becomes slid completely open. The pane may or may not
         * be interactive at this point depending on how much of the pane is visible.
         * @param panel The child view that was slid to an open position, revealing other panes
         */
        public void onPanelOpened(View panel);

        /**
         * Called when DetailsBean sliding pane becomes slid completely closed. The pane is now guaranteed
         * to be interactive. It may now obscure other views in the layout.
         * @param panel The child view that was slid to DetailsBean closed position
         */
        public void onPanelClosed(View panel);
    }

    public ResideLayout(Context context) {
        this(context, null);
    }

    public ResideLayout(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public ResideLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        final float density = context.getResources().getDisplayMetrics().density;
        mOverhangSize = (int) (DEFAULT_OVERHANG_SIZE * density + 0.5f);

        setWillNotDraw(false);

        mDragHelper = ViewDragHelper.create(this, 0.5f, new DragHelperCallback());
        mDragHelper.setMinVelocity(MIN_FLING_VELOCITY * density);
    }

    /**
     * Set DetailsBean distance to parallax the lower pane by when the upper pane is in its
     * fully closed state. The lower pane will scroll between this position and
     * its fully open state.
     *
     * @param parallaxBy Distance to parallax by in pixels
     */
    public void setParallaxDistance(int parallaxBy) {
        mParallaxBy = parallaxBy;
        requestLayout();
    }

    /**
     * @return The distance the lower pane will parallax by when the upper pane is fully closed.
     *
     * @see #setParallaxDistance(int)
     */
    public int getParallaxDistance() {
        return mParallaxBy;
    }

    public void setPanelSlideListener(PanelSlideListener listener) {
        mPanelSlideListener = listener;
    }

    void dispatchOnPanelSlide(View panel) {
        if (mPanelSlideListener != null) {
            mPanelSlideListener.onPanelSlide(panel, mSlideOffset);
        }
    }

    void dispatchOnPanelOpened(View panel) {
        if (mPanelSlideListener != null) {
            mPanelSlideListener.onPanelOpened(panel);
        }
    }

    void dispatchOnPanelClosed(View panel) {
        if (mPanelSlideListener != null) {
            mPanelSlideListener.onPanelClosed(panel);
        }
    }

    void updateObscuredViewsVisibility(View panel) {
        final int startBound = getPaddingLeft();
        final int endBound = getWidth() - getPaddingRight();
        final int topBound = getPaddingTop();
        final int bottomBound = getHeight() - getPaddingBottom();
        final int left;
        final int right;
        final int top;
        final int bottom;
        if (panel != null && viewIsOpaque(panel)) {
            left = panel.getLeft();
            right = panel.getRight();
            top = panel.getTop();
            bottom = panel.getBottom();
        } else {
            left = right = top = bottom = 0;
        }

        for (int i = 0, childCount = getChildCount(); i < childCount; i++) {
            final View child = getChildAt(i);

            if (child == panel) {
                // There are still more children above the panel but they won't be affected.
                break;
            }

            final int clampedChildLeft = Math.max(startBound, child.getLeft());
            final int clampedChildTop = Math.max(topBound, child.getTop());
            final int clampedChildRight = Math.min(endBound, child.getRight());
            final int clampedChildBottom = Math.min(bottomBound, child.getBottom());
            final int vis;
            if (clampedChildLeft >= left && clampedChildTop >= top &&
                    clampedChildRight <= right && clampedChildBottom <= bottom) {
                vis = INVISIBLE;
            } else {
                vis = VISIBLE;
            }
            child.setVisibility(vis);
        }
    }

    void setAllChildrenVisible() {
        for (int i = 0, childCount = getChildCount(); i < childCount; i++) {
            final View child = getChildAt(i);
            if (child.getVisibility() == INVISIBLE) {
                child.setVisibility(VISIBLE);
            }
        }
    }

    private static boolean viewIsOpaque(View v) {
        if (ViewCompat.isOpaque(v)) return true;

        // View#isOpaque didn't take all valid opaque scrollbar modes into account
        // before API 18 (JB-MR2). On newer devices rely solely on isOpaque above and return false
        // here. On older devices, check the view's background drawable directly as DetailsBean fallback.
        if (Build.VERSION.SDK_INT >= 18) return false;

        final Drawable bg = v.getBackground();
        return bg != null && bg.getOpacity() == PixelFormat.OPAQUE;
    }

    @Override
    protected void onAttachedToWindow() {
        super.onAttachedToWindow();
        mFirstLayout = true;
    }

    @Override
    protected void onDetachedFromWindow() {
        super.onDetachedFromWindow();
        mFirstLayout = true;

        for (final DisableLayerRunnable dlr : mPostedRunnables) {
            dlr.run();
        }
        mPostedRunnables.clear();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
        int widthSize = MeasureSpec.getSize(widthMeasureSpec);
        int heightMode = MeasureSpec.getMode(heightMeasureSpec);
        int heightSize = MeasureSpec.getSize(heightMeasureSpec);

        if (widthMode != MeasureSpec.EXACTLY) {
            if (isInEditMode()) {
                if (widthMode == MeasureSpec.UNSPECIFIED) {
                    widthSize = 300;
                }
            } else {
                throw new IllegalStateException("Width must have an exact value or MATCH_PARENT");
            }
        } else if (heightMode == MeasureSpec.UNSPECIFIED) {
            if (isInEditMode()) {
                if (heightMode == MeasureSpec.UNSPECIFIED) {
                    heightMode = MeasureSpec.AT_MOST;
                    heightSize = 300;
                }
            } else {
                throw new IllegalStateException("Height must not be UNSPECIFIED");
            }
        }

        int layoutHeight = 0;
        int maxLayoutHeight = -1;
        switch (heightMode) {
            case MeasureSpec.EXACTLY:
                layoutHeight = maxLayoutHeight = heightSize - getPaddingTop() - getPaddingBottom();
                break;
            case MeasureSpec.AT_MOST:
                maxLayoutHeight = heightSize - getPaddingTop() - getPaddingBottom();
                break;
        }

        float weightSum = 0;
        boolean canSlide = false;
        final int widthAvailable = widthSize - getPaddingLeft() - getPaddingRight();
        int widthRemaining = widthAvailable;
        final int childCount = getChildCount();

        if (childCount > 2) {
            Log.e(TAG, "onMeasure: More than two child views are not supported.");
        }

        // We'll findfragment the current one below.
        mSlideableView = null;

        // First pass. Measure based on child LayoutParams width/height.
        // Weight will incur DetailsBean second pass.
        for (int i = 0; i < childCount; i++) {
            final View child = getChildAt(i);
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();

            if (child.getVisibility() == GONE) {
                lp.dimWhenOffset = false;
                continue;
            }

            if (lp.weight > 0) {
                weightSum += lp.weight;

                // If we have no width, weight is the only contributor to the final size.
                // Measure this view on the weight pass only.
                if (lp.width == 0) continue;
            }

            int childWidthSpec;
            final int horizontalMargin = lp.leftMargin + lp.rightMargin;
            if (lp.width == LayoutParams.WRAP_CONTENT) {
                childWidthSpec = MeasureSpec.makeMeasureSpec(widthAvailable - horizontalMargin,
                        MeasureSpec.AT_MOST);
            } else if (lp.width == LayoutParams.MATCH_PARENT) {
                childWidthSpec = MeasureSpec.makeMeasureSpec(widthAvailable - horizontalMargin,
                        MeasureSpec.EXACTLY);
            } else {
                childWidthSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY);
            }

            int childHeightSpec;
            if (lp.height == LayoutParams.WRAP_CONTENT) {
                childHeightSpec = MeasureSpec.makeMeasureSpec(maxLayoutHeight, MeasureSpec.AT_MOST);
            } else if (lp.height == LayoutParams.MATCH_PARENT) {
                childHeightSpec = MeasureSpec.makeMeasureSpec(maxLayoutHeight, MeasureSpec.EXACTLY);
            } else {
                childHeightSpec = MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
            }

            child.measure(childWidthSpec, childHeightSpec);
            final int childWidth = child.getMeasuredWidth();
            final int childHeight = child.getMeasuredHeight();

            if (heightMode == MeasureSpec.AT_MOST && childHeight > layoutHeight) {
                layoutHeight = Math.min(childHeight, maxLayoutHeight);
            }

            widthRemaining -= childWidth;
            canSlide |= lp.slideable = widthRemaining < 0;
            if (lp.slideable) {
                mSlideableView = child;
            }
        }

        // Resolve weight and make sure non-sliding panels are smaller than the full screen.
        if (canSlide || weightSum > 0) {
//            final int fixedPanelWidthLimit = widthAvailable - mOverhangSize;

            for (int i = 0; i < childCount; i++) {
                final View child = getChildAt(i);

                if (child.getVisibility() == GONE) {
                    continue;
                }

                final LayoutParams lp = (LayoutParams) child.getLayoutParams();

                if (child.getVisibility() == GONE) {
                    continue;
                }

                final boolean skippedFirstPass = lp.width == 0 && lp.weight > 0;
                final int measuredWidth = skippedFirstPass ? 0 : child.getMeasuredWidth();
                if (canSlide && child != mSlideableView) {
                    if (lp.width < 0 && (measuredWidth > widthAvailable || lp.weight > 0)) {
                        // Fixed panels in DetailsBean sliding configuration should
                        // be clamped to the fixed panel limit.
                        final int childHeightSpec;
                        if (skippedFirstPass) {
                            // Do initial height measurement if we skipped measuring this view
                            // the first time around.
                            if (lp.height == LayoutParams.WRAP_CONTENT) {
                                childHeightSpec = MeasureSpec.makeMeasureSpec(maxLayoutHeight,
                                        MeasureSpec.AT_MOST);
                            } else if (lp.height == LayoutParams.MATCH_PARENT) {
                                childHeightSpec = MeasureSpec.makeMeasureSpec(maxLayoutHeight,
                                        MeasureSpec.EXACTLY);
                            } else {
                                childHeightSpec = MeasureSpec.makeMeasureSpec(lp.height,
                                        MeasureSpec.EXACTLY);
                            }
                        } else {
                            childHeightSpec = MeasureSpec.makeMeasureSpec(
                                    child.getMeasuredHeight(), MeasureSpec.EXACTLY);
                        }
                        final int childWidthSpec = MeasureSpec.makeMeasureSpec(
                                widthAvailable, MeasureSpec.EXACTLY);
                        child.measure(childWidthSpec, childHeightSpec);
                    }
                } else if (lp.weight > 0) {
                    int childHeightSpec;
                    if (lp.width == 0) {
                        // This was skipped the first time; figure out DetailsBean real height spec.
                        if (lp.height == LayoutParams.WRAP_CONTENT) {
                            childHeightSpec = MeasureSpec.makeMeasureSpec(maxLayoutHeight,
                                    MeasureSpec.AT_MOST);
                        } else if (lp.height == LayoutParams.MATCH_PARENT) {
                            childHeightSpec = MeasureSpec.makeMeasureSpec(maxLayoutHeight,
                                    MeasureSpec.EXACTLY);
                        } else {
                            childHeightSpec = MeasureSpec.makeMeasureSpec(lp.height,
                                    MeasureSpec.EXACTLY);
                        }
                    } else {
                        childHeightSpec = MeasureSpec.makeMeasureSpec(
                                child.getMeasuredHeight(), MeasureSpec.EXACTLY);
                    }

                    if (canSlide) {
                        // Consume available space
                        final int horizontalMargin = lp.leftMargin + lp.rightMargin;
                        final int newWidth = widthAvailable - horizontalMargin;
                        final int childWidthSpec = MeasureSpec.makeMeasureSpec(
                                newWidth, MeasureSpec.EXACTLY);
                        if (measuredWidth != newWidth) {
                            child.measure(childWidthSpec, childHeightSpec);
                        }
                    } else {
                        // Distribute the extra width proportionally similar to LinearLayout
                        final int widthToDistribute = Math.max(0, widthRemaining);
                        final int addedWidth = (int) (lp.weight * widthToDistribute / weightSum);
                        final int childWidthSpec = MeasureSpec.makeMeasureSpec(
                                measuredWidth + addedWidth, MeasureSpec.EXACTLY);
                        child.measure(childWidthSpec, childHeightSpec);
                    }
                }
            }
        }

        final int measuredWidth = widthSize;
        final int measuredHeight = layoutHeight + getPaddingTop() + getPaddingBottom();

        setMeasuredDimension(measuredWidth, measuredHeight);
        mCanSlide = canSlide;

        if (mDragHelper.getViewDragState() != ViewDragHelper.STATE_IDLE && !canSlide) {
            // Cancel scrolling in progress, it's no longer relevant.
            mDragHelper.abort();
        }
    }

    @Override
    protected void onLayout(boolean changed, int l, int t, int r, int b) {
        mDragHelper.setEdgeTrackingEnabled(ViewDragHelper.EDGE_LEFT);
        final int width = r - l;
        final int paddingStart = getPaddingLeft();
        final int paddingEnd = getPaddingRight();
        final int paddingTop = getPaddingTop();

        final int childCount = getChildCount();
        int xStart = paddingStart;
        int nextXStart = xStart;

        if (mFirstLayout) {
            mSlideOffset = mCanSlide && mPreservedOpenState ? 1.f : 0.f;
        }

        for (int i = 0; i < childCount; i++) {
            final View child = getChildAt(i);

            if (child.getVisibility() == GONE) {
                continue;
            }

            final LayoutParams lp = (LayoutParams) child.getLayoutParams();

            final int childWidth = child.getMeasuredWidth();
            int offset = 0;

            if (lp.slideable) {
                final int margin = lp.leftMargin + lp.rightMargin;
                final int range = Math.min(nextXStart,
                        width - paddingEnd - mOverhangSize) - xStart - margin;
                mSlideRange = range;
                final int lpMargin = lp.leftMargin;
                lp.dimWhenOffset = xStart + lpMargin + range + childWidth / 2 >
                        width - paddingEnd;
                final int pos = (int) (range * mSlideOffset);
                xStart += pos + lpMargin;
                mSlideOffset = (float) pos / mSlideRange;
            } else if (mCanSlide && mParallaxBy != 0) {
                offset = (int) ((1 - mSlideOffset) * mParallaxBy);
                xStart = nextXStart;
            } else {
                xStart = nextXStart;
            }

            final int childRight;
            final int childLeft;
            childLeft = xStart - offset;
            childRight = childLeft + childWidth;

            final int childBottom = paddingTop + child.getMeasuredHeight();
            child.layout(childLeft, paddingTop, childRight, childBottom);

            nextXStart += child.getWidth();
        }

        if (mFirstLayout) {
            if (mCanSlide) {
                if (mParallaxBy != 0) {
                    parallaxOtherViews(mSlideOffset);
                }
            }
            updateObscuredViewsVisibility(mSlideableView);
        }

        mFirstLayout = false;
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        // Recalculate sliding panes and their details
        if (w != oldw) {
            mFirstLayout = true;
        }
    }

    @Override
    public void requestChildFocus(View child, View focused) {
        super.requestChildFocus(child, focused);
        if (!isInTouchMode() && !mCanSlide) {
            mPreservedOpenState = child == mSlideableView;
        }
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        final int action = MotionEventCompat.getActionMasked(ev);

        // Preserve the open state based on the last view that was touched.
        if (!mCanSlide && action == MotionEvent.ACTION_DOWN && getChildCount() > 1) {
            // After the first things will be slideable.
            final View secondChild = getChildAt(1);
            if (secondChild != null) {
                mPreservedOpenState = !mDragHelper.isViewUnder(secondChild,
                        (int) ev.getX(), (int) ev.getY());
            }
        }

        if (!mCanSlide || (mIsUnableToDrag && action != MotionEvent.ACTION_DOWN)) {
            mDragHelper.cancel();
            return super.onInterceptTouchEvent(ev);
        }

        if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
            mDragHelper.cancel();
            return false;
        }

        boolean interceptTap = false;

        switch (action) {
            case MotionEvent.ACTION_DOWN: {
                mIsUnableToDrag = false;
                final float x = ev.getX();
                final float y = ev.getY();
                mInitialMotionX = x;
                mInitialMotionY = y;

                if (mDragHelper.isViewUnder(mSlideableView, (int) x, (int) y) &&
                        isDimmed(mSlideableView)) {
                    interceptTap = true;
                }
                break;
            }

            case MotionEvent.ACTION_MOVE: {
                final float x = ev.getX();
                final float y = ev.getY();
                final float adx = Math.abs(x - mInitialMotionX);
                final float ady = Math.abs(y - mInitialMotionY);
                final int slop = mDragHelper.getTouchSlop();

                View view = findViewAtPosition(this, (int) x, (int) y);

                if (adx > slop && ady > adx || view != null) {
                    if(view != null) {
                        Log.d(TAG, "touch on unscrollable view");
                    }
                    mDragHelper.cancel();
                    mIsUnableToDrag = true;
                    return false;
                }
            }
        }

        final boolean interceptForDrag = mDragHelper.shouldInterceptTouchEvent(ev);

        return interceptForDrag || interceptTap;
    }

    private View findViewAtPosition(View parent, int x, int y) {
        if(parent instanceof ViewPager){
            Rect rect = new Rect();
            parent.getGlobalVisibleRect(rect);
            if (rect.contains(x, y)) {
                return parent;
            }
        }else if(parent instanceof ViewGroup){
            ViewGroup viewGroup = (ViewGroup)parent;
            final int length = viewGroup.getChildCount();
            for (int i = 0; i < length; i++) {
                View child = viewGroup.getChildAt(i);
                View viewAtPosition = findViewAtPosition(child, x, y);
                if (viewAtPosition != null) {
                    return viewAtPosition;
                }
            }
            return null;
        }
        return null;
    }

    @Override
    public boolean onTouchEvent(@NonNull MotionEvent ev) {
        if (!mCanSlide) {
            return super.onTouchEvent(ev);
        }

        mDragHelper.processTouchEvent(ev);

        final int action = ev.getAction();

        switch (action & MotionEventCompat.ACTION_MASK) {
            case MotionEvent.ACTION_DOWN: {
                final float x = ev.getX();
                final float y = ev.getY();
                mInitialMotionX = x;
                mInitialMotionY = y;
                break;
            }

            case MotionEvent.ACTION_UP: {
                if (isDimmed(mSlideableView)) {
                    final float x = ev.getX();
                    final float y = ev.getY();
                    final float dx = x - mInitialMotionX;
                    final float dy = y - mInitialMotionY;
                    final int slop = mDragHelper.getTouchSlop();
                    if (dx * dx + dy * dy < slop * slop &&
                            mDragHelper.isViewUnder(mSlideableView, (int) x, (int) y)) {
                        // Taps close DetailsBean dimmed open pane.
                        closePane();
                        break;
                    }
                }
                break;
            }
        }

        return true;
    }

    public boolean closePane() {
        if (mFirstLayout || smoothSlideTo(0.f)) {
            mPreservedOpenState = false;
            return true;
        }
        return false;
    }

    public boolean openPane() {
        if (mFirstLayout || smoothSlideTo(1.f)) {
            mPreservedOpenState = true;
            return true;
        }
        return false;
    }

    /**
     * Check if the layout is completely open. It can be open either because the slider
     * itself is open revealing the left pane, or if all content fits without sliding.
     *
     * @return true if sliding panels are completely open
     */
    public boolean isOpen() {
        return !mCanSlide || mSlideOffset == 1;
    }

    /**
     * Check if the content in this layout cannot fully fit side by side and therefore
     * the content pane can be slid back and forth.
     *
     * @return true if content in this layout can be slid open and closed
     */
    public boolean isSlideable() {
        return mCanSlide;
    }

    private void onPanelDragged(int newLeft) {
        if (mSlideableView == null) {
            // This can happen if we're aborting motion during layout because everything now fits.
            mSlideOffset = 0;
            return;
        }
        final LayoutParams lp = (LayoutParams) mSlideableView.getLayoutParams();

        final int paddingStart = getPaddingLeft();
        final int lpMargin = lp.leftMargin;
        final int startBound = paddingStart + lpMargin;

        mSlideOffset = (float) (newLeft - startBound) / mSlideRange;

        parallaxOtherViews(mSlideOffset);

        if (lp.dimWhenOffset) {
            dimChildView(mSlideableView, mSlideOffset, mSliderFadeColor);
        }
        dispatchOnPanelSlide(mSlideableView);
    }

    private void dimChildView(View v, float mag, int fadeColor) {
        final LayoutParams lp = (LayoutParams) v.getLayoutParams();

        if (mag > 0 && fadeColor != 0) {
            final int baseAlpha = (fadeColor & 0xff000000) >>> 24;
            int imag = (int) (baseAlpha * mag);
            int color = imag << 24 | (fadeColor & 0xffffff);
            if (lp.dimPaint == null) {
                lp.dimPaint = new Paint();
            }
            lp.dimPaint.setColorFilter(new PorterDuffColorFilter(color, PorterDuff.Mode.SRC_OVER));
            if (ViewCompat.getLayerType(v) != ViewCompat.LAYER_TYPE_HARDWARE) {
                ViewCompat.setLayerType(v, ViewCompat.LAYER_TYPE_HARDWARE, lp.dimPaint);
            }
            invalidateChildRegion(v);
        } else if (ViewCompat.getLayerType(v) != ViewCompat.LAYER_TYPE_NONE) {
            if (lp.dimPaint != null) {
                lp.dimPaint.setColorFilter(null);
            }
            final DisableLayerRunnable dlr = new DisableLayerRunnable(v);
            mPostedRunnables.add(dlr);
            ViewCompat.postOnAnimation(this, dlr);
        }
    }

    @Override
    protected boolean drawChild(@NonNull Canvas canvas, @NonNull View child, long drawingTime) {
        final LayoutParams lp = (LayoutParams) child.getLayoutParams();
        boolean result;
        final int save = canvas.save(Canvas.ALL_SAVE_FLAG);

        if (mCanSlide && !lp.slideable && mSlideableView != null) {
            // Clip against the slider; no sense drawing what will immediately be covered.
            canvas.scale(1.2f -  0.2f * mSlideOffset, 1.2f -  0.2f * mSlideOffset, child.getRight(), getHeight() / 2);
        } else {
            assert mSlideableView != null;
            canvas.scale(1 - mSlideOffset / 3, 1 - mSlideOffset / 3, mSlideableView.getLeft(), getHeight() / 2);
            ViewCompat.setRotationY(child, -10 * mSlideOffset);
        }

        if(!lp.slideable && mSlideOffset == 0) {
            result = true;
        }else {
            if (Build.VERSION.SDK_INT >= 11) { // HC
                result = super.drawChild(canvas, child, drawingTime);
            } else {
                if (lp.dimWhenOffset && mSlideOffset > 0) {
                    if (!child.isDrawingCacheEnabled()) {
                        child.setDrawingCacheEnabled(true);
                    }
                    final Bitmap cache = child.getDrawingCache();
                    if (cache != null) {
                        canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                        result = false;
                    } else {
                        Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                        result = super.drawChild(canvas, child, drawingTime);
                    }
                } else {
                    if (child.isDrawingCacheEnabled()) {
                        child.setDrawingCacheEnabled(false);
                    }
                    result = super.drawChild(canvas, child, drawingTime);
                }
            }
        }

        canvas.restoreToCount(save);

        return result;
    }

    private void invalidateChildRegion(View v) {
        IMPL.invalidateChildRegion(this, v);
    }

    /**
     * Smoothly animate mDraggingPane to the target X position within its range.
     *  @param slideOffset position to animate to
     *
     */
    boolean smoothSlideTo(float slideOffset) {
        if (!mCanSlide) {
            // Nothing to do.
            return false;
        }
        final LayoutParams lp = (LayoutParams) mSlideableView.getLayoutParams();

        int startBound = getPaddingLeft() + lp.leftMargin;
        int x = (int) (startBound + slideOffset * mSlideRange);

        if (mDragHelper.smoothSlideViewTo(mSlideableView, x, mSlideableView.getTop())) {
            setAllChildrenVisible();
            ViewCompat.postInvalidateOnAnimation(this);
            return true;
        }
        return false;
    }

    @Override
    public void computeScroll() {
        if (mDragHelper.continueSettling(true)) {
            if (!mCanSlide) {
                mDragHelper.abort();
                return;
            }

            ViewCompat.postInvalidateOnAnimation(this);
        }
    }

    private void parallaxOtherViews(float slideOffset) {
        final LayoutParams slideLp = (LayoutParams) mSlideableView.getLayoutParams();
        final boolean dimViews = slideLp.dimWhenOffset && slideLp.leftMargin <= 0;
        final int childCount = getChildCount();
        for (int i = 0; i < childCount; i++) {
            final View v = getChildAt(i);
            if (v == mSlideableView) continue;

            final int oldOffset = (int) ((1 - mParallaxOffset) * mParallaxBy);
            mParallaxOffset = slideOffset;
            final int newOffset = (int) ((1 - slideOffset) * mParallaxBy);
            final int dx = oldOffset - newOffset;

            v.offsetLeftAndRight(dx);

            if (dimViews) {
                dimChildView(v, 1 - mParallaxOffset, mCoveredFadeColor);
            }
        }
    }

    boolean isDimmed(View child) {
        if (child == null) {
            return false;
        }
        final LayoutParams lp = (LayoutParams) child.getLayoutParams();
        return mCanSlide && lp.dimWhenOffset && mSlideOffset > 0;
    }

    @Override
    protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
        return new LayoutParams();
    }

    @Override
    protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
        return p instanceof MarginLayoutParams
                ? new LayoutParams((MarginLayoutParams) p)
                : new LayoutParams(p);
    }

    @Override
    protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
        return p instanceof LayoutParams && super.checkLayoutParams(p);
    }

    @Override
    public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) {
        return new LayoutParams(getContext(), attrs);
    }

    @Override
    protected Parcelable onSaveInstanceState() {
        Parcelable superState = super.onSaveInstanceState();

        SavedState ss = new SavedState(superState);
        ss.isOpen = isSlideable() ? isOpen() : mPreservedOpenState;

        return ss;
    }

    @Override
    protected void onRestoreInstanceState(Parcelable state) {
        SavedState ss = (SavedState) state;
        super.onRestoreInstanceState(ss.getSuperState());

        if (ss.isOpen) {
            openPane();
        } else {
            closePane();
        }
        mPreservedOpenState = ss.isOpen;
    }

    private class DragHelperCallback extends ViewDragHelper.Callback {

        @Override
        public boolean tryCaptureView(View child, int pointerId) {
            return !mIsUnableToDrag && ((LayoutParams) child.getLayoutParams()).slideable;
        }

        @Override
        public void onViewDragStateChanged(int state) {
            if (mDragHelper.getViewDragState() == ViewDragHelper.STATE_IDLE) {
                if (mSlideOffset == 0) {
                    updateObscuredViewsVisibility(mSlideableView);
                    dispatchOnPanelClosed(mSlideableView);
                    mPreservedOpenState = false;
                } else {
                    dispatchOnPanelOpened(mSlideableView);
                    mPreservedOpenState = true;
                }
            }
        }

        @Override
        public void onViewCaptured(View capturedChild, int activePointerId) {
            // Make all child views visible in preparation for sliding things around
            setAllChildrenVisible();
        }

        @Override
        public void onViewPositionChanged(View changedView, int left, int top, int dx, int dy) {
            onPanelDragged(left);
            invalidate();
        }

        @Override
        public void onViewReleased(View releasedChild, float xvel, float yvel) {
            final LayoutParams lp = (LayoutParams) releasedChild.getLayoutParams();

            int left = getPaddingLeft() + lp.leftMargin;
            if (xvel > 0 || (xvel == 0 && mSlideOffset > 0.5f)) {
                left += mSlideRange;
            }
            mDragHelper.settleCapturedViewAt(left, releasedChild.getTop());
            invalidate();
        }

        @Override
        public int getViewHorizontalDragRange(View child) {
            return mSlideRange;
        }

        @Override
        public int clampViewPositionHorizontal(View child, int left, int dx) {
            final LayoutParams lp = (LayoutParams) mSlideableView.getLayoutParams();

            int startBound = getPaddingLeft() + lp.leftMargin;
            int endBound = startBound + mSlideRange;

            return Math.min(Math.max(left, startBound), endBound);
        }

        @Override
        public int clampViewPositionVertical(View child, int top, int dy) {
            // Make sure we never move views vertically.
            // This could happen if the child has less height than its parent.
            return child.getTop();
        }

        @Override
        public void onEdgeDragStarted(int edgeFlags, int pointerId) {
            mDragHelper.captureChildView(mSlideableView, pointerId);
        }
    }

    public static class LayoutParams extends MarginLayoutParams {
        private static final int[] ATTRS = new int[] {
                android.R.attr.layout_weight
        };

        /**
         * The weighted proportion of how much of the leftover space
         * this child should consume after measurement.
         */
        public float weight = 0;

        /**
         * True if this pane is the slideable pane in the layout.
         */
        boolean slideable;

        /**
         * True if this view should be drawn dimmed
         * when it's been offset from its default position.
         */
        boolean dimWhenOffset;

        Paint dimPaint;

        public LayoutParams() {
            super(MATCH_PARENT, MATCH_PARENT);
        }

        public LayoutParams(ViewGroup.LayoutParams source) {
            super(source);
        }

        public LayoutParams(MarginLayoutParams source) {
            super(source);
        }


        public LayoutParams(Context c, AttributeSet attrs) {
            super(c, attrs);

            final TypedArray a = c.obtainStyledAttributes(attrs, ATTRS);
            this.weight = a.getFloat(0, 0);
            a.recycle();
        }

    }

    static class SavedState extends BaseSavedState {
        boolean isOpen;

        SavedState(Parcelable superState) {
            super(superState);
        }

        private SavedState(Parcel in) {
            super(in);
            isOpen = in.readInt() != 0;
        }

        @Override
        public void writeToParcel(@NonNull Parcel out, int flags) {
            super.writeToParcel(out, flags);
            out.writeInt(isOpen ? 1 : 0);
        }

        public static final Creator CREATOR =
                new Creator() {
                    public SavedState createFromParcel(Parcel in) {
                        return new SavedState(in);
                    }

                    public SavedState[] newArray(int size) {
                        return new SavedState[size];
                    }
                };
    }

    interface SlidingPanelLayoutImpl {
        void invalidateChildRegion(ResideLayout parent, View child);
    }

    static class SlidingPanelLayoutImplBase implements SlidingPanelLayoutImpl {
        public void invalidateChildRegion(ResideLayout parent, View child) {
            ViewCompat.postInvalidateOnAnimation(parent, child.getLeft(), child.getTop(),
                    child.getRight(), child.getBottom());
        }
    }

    static class SlidingPanelLayoutImplJB extends SlidingPanelLayoutImplBase {
        /*
         * Private API hacks! Nasty! Bad!
         *
         * In Jellybean, some optimizations in the hardware UI renderer
         * prevent DetailsBean changed Paint on DetailsBean View using DetailsBean hardware layer from having
         * the intended effect. This twiddles some internal bits on the view to force
         * it to recreate the display list.
         */
        private Method mGetDisplayList;
        private Field mRecreateDisplayList;

        SlidingPanelLayoutImplJB() {
            try {
                mGetDisplayList = View.class.getDeclaredMethod("getDisplayList", (Class[]) null);
            } catch (NoSuchMethodException e) {
                Log.e(TAG, "Couldn't fetch getDisplayList method; dimming won't work right.", e);
            }
            try {
                mRecreateDisplayList = View.class.getDeclaredField("mRecreateDisplayList");
                mRecreateDisplayList.setAccessible(true);
            } catch (NoSuchFieldException e) {
                Log.e(TAG, "Couldn't fetch mRecreateDisplayList field; dimming will be slow.", e);
            }
        }

        @Override
        public void invalidateChildRegion(ResideLayout parent, View child) {
            if (mGetDisplayList != null && mRecreateDisplayList != null) {
                try {
                    mRecreateDisplayList.setBoolean(child, true);
                    mGetDisplayList.invoke(child, (Object[]) null);
                } catch (Exception e) {
                    Log.e(TAG, "Error refreshing display list state", e);
                }
            } else {
                // Slow path. REALLY slow path. Let's hope we don't get here.
                child.invalidate();
                return;
            }
            super.invalidateChildRegion(parent, child);
        }
    }

    static class SlidingPanelLayoutImplJBMR1 extends SlidingPanelLayoutImplBase {
        @Override
        public void invalidateChildRegion(ResideLayout parent, View child) {
            ViewCompat.setLayerPaint(child, ((LayoutParams) child.getLayoutParams()).dimPaint);
        }
    }

    private class DisableLayerRunnable implements Runnable {
        final View mChildView;

        DisableLayerRunnable(View childView) {
            mChildView = childView;
        }

        @Override
        public void run() {
            if (mChildView.getParent() == ResideLayout.this) {
                ViewCompat.setLayerType(mChildView, ViewCompat.LAYER_TYPE_NONE, null);
                invalidateChildRegion(mChildView);
            }
            mPostedRunnables.remove(this);
        }
    }
}