侧滑菜单（二）
MainActivity.class
package com.test.sildingmenu;
import com.test.sildingmenu.view.CustomSidingView;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.os.Bundle;
public class MainActivity extends ActionBarActivity {
private CustomSidingView menu;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
menu = (CustomSidingView) findViewById(R.id.activity_main_scrollview);
}
public void toggleMenu(View view){
menu.toggle();
}
}
主界面布局文件activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res/com.test.sildingmenu" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/main_bg"> <com.test.sildingmenu.view.CustomSidingView android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/activity_main_scrollview" android:scrollbars="none" app:rightPadding="80dp"> <LinearLayout android:layout_width="wrap_content" android:layout_height="match_parent" android:id="@+id/activity_main_layout" android:orientation="horizontal"> <include android:layout_width="wrap_content" android:layout_height="match_parent" android:id="@+id/activity_main_side_menu" layout="@layout/view_side_menu"/> <LinearLayout android:layout_width="wrap_content" android:layout_height="match_parent" android:id="@+id/activity_main_main_layout" android:background="@drawable/loading_bg" android:orientation="vertical"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:onClick="toggleMenu" android:text="切换菜单"/> </LinearLayout> </LinearLayout> </com.test.sildingmenu.view.CustomSidingView > </RelativeLayout>
菜单布局文件view_side_menu.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center_vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/view_side_menu_one_layout" android:padding="15dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/view_side_menu_image1" android:src="@drawable/icon_base_info" android:layout_alignParentLeft="true" android:layout_centerVertical="true"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/view_side_menu_text1" android:layout_toRightOf="@+id/view_side_menu_image1" android:layout_marginLeft="7dp" android:text="第一个item" android:layout_centerVertical="true" android:textColor="#fff" android:textSize="20sp"/> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/view_side_menu_two_layout" android:padding="15dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/view_side_menu_image2" android:src="@drawable/icon_borrow_description" android:layout_alignParentLeft="true" android:layout_centerVertical="true"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/view_side_menu_text2" android:layout_toRightOf="@+id/view_side_menu_image2" android:layout_marginLeft="7dp" android:text="第二个item" android:layout_centerVertical="true" android:textColor="#fff" android:textSize="20sp"/> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/view_side_menu_three_layout" android:padding="15dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/view_side_menu_image3" android:src="@drawable/icon_borrow_user_info" android:layout_alignParentLeft="true" android:layout_centerVertical="true"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/view_side_menu_text3" android:layout_toRightOf="@+id/view_side_menu_image3" android:layout_marginLeft="7dp" android:text="第三个item" android:layout_centerVertical="true" android:textColor="#fff" android:textSize="20sp"/> </RelativeLayout> </LinearLayout>
自定义View
CustomSidingView.class
/**
*
*/
package com.test.sildingmenu.view;
import com.nineoldandroids.view.ViewHelper;
import com.test.sildingmenu.R;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.HorizontalScrollView;
import android.widget.LinearLayout;
/**
* @author wanggenping
* 自定义属性(普通侧滑菜单)
*/
public class CustomSidingView extends HorizontalScrollView {
private LinearLayout layout;// 包含在SidingView内的LinearLayout
private ViewGroup mMenu;// 左侧菜单
private ViewGroup mContent;// 主页面
private int mScreenWidth;// 屏幕宽度
private int mMenuWidth;
// dp
private int mMenuRightPadding;
private boolean once;
private boolean isOpen;
/**
* 未使用自定义属性时调用此构造方法
*
* @param context
* @param attrs
* (属性)
*/
public CustomSidingView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
/**
* 当使用了自定义的属性时会调用此构造方法
*
* @param context
* @param attrs
* @param defStyle
*/
public CustomSidingView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// 获取我们定义的属性
TypedArray array = context.getTheme().obtainStyledAttributes(attrs,
R.styleable.SildingMenu, defStyle, 0);
//自定义属性中的个数
int n = array.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = array.getIndex(i);
switch (attr) {
case R.styleable.SildingMenu_rightPadding:
mMenuRightPadding = array.getDimensionPixelSize(attr,
(int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 50, context
.getResources().getDisplayMetrics()));
break;
default:
break;
}
}
array.recycle();
WindowManager wm = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
mScreenWidth = outMetrics.widthPixels;
}
public CustomSidingView(Context context) {
this(context, null);
}
/**
* 设置子View的宽和高 设置自己的宽和高
*/
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// 由于onMeasure()方法可能被多长调用，所以我们这里只设置一次宽和高，不多长设置
if (!once) {
layout = (LinearLayout) getChildAt(0);
// layout中的第一个元素（即：menu）
mMenu = (ViewGroup) layout.getChildAt(0);
// layout中的第二个元素（即：主界面）
mContent = (ViewGroup) layout.getChildAt(1);
mMenuWidth = mMenu.getLayoutParams().width = mScreenWidth - mMenuRightPadding;
mContent.getLayoutParams().width = mScreenWidth;
once = true;
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
/**
* 通过设置偏移量将menu隐藏
*/
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
if (changed) {
// menu初始状态，隐藏
this.scrollTo(mMenuWidth, 0);
}
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
int action = ev.getAction();
switch (action) {
case MotionEvent.ACTION_UP:
// 隐藏在左边的宽度
int scrollX = getScrollX();
if (scrollX >= mMenuWidth / 2) {
// 带有动画的滑动
this.smoothScrollTo(mMenuWidth, 0);
isOpen = false;
} else {
// 显示menu
this.smoothScrollTo(0, 0);
isOpen = true;
}
return true;
}
return super.onTouchEvent(ev);
}
/**
*打开菜单
*/
public void openMenu(){
if(isOpen){
return;
}else{
this.smoothScrollTo(0, 0);
isOpen = true;
}
}
/**
*关闭菜单
*/
public void closeMenu(){
if(!isOpen){
return;
}else{
this.smoothScrollTo(mMenuWidth, 0);
isOpen = false;
}
}
/**
*切换菜单
*/
public void toggle(){
if(isOpen){
closeMenu();
}else{
openMenu();
}
}
/**
*抽屉式的侧滑效果需要此重新此方法，里面添加属性动画
*
*/
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
// l = getScrollX();
super.onScrollChanged(l, t, oldl, oldt);
float scale = l*1.0f/mMenuWidth;//1-0
//引入属性动画的jar包（由于属性动画支持3.0以上，所以需要向下兼容的话需要引入nineoldandroids-2.4.0.jar包）
ViewHelper.setTranslationX(mMenu, mMenuWidth*scale);//普通抽屉式的偏移量
}
}
自定义属性文件attrs.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="SildingMenu"> <attr name="rightPadding" format="dimension"/> </declare-styleable> </resources>