仿OPPO R7 plus中的时钟应用的导航效果
效果图：
效果基本上和oppo上的效果一样，应为图片原因少了一些立体效果。
MainActivity：
package com.example.chl.myapplication;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.TextView;
import android.view.ViewGroup.LayoutParams;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends Activity implements View.OnClickListener{
private ViewPager mViewPager;
private List<View> mList=new ArrayList<View>();
private TextView mTabline;
private int mScreen1_4;
private int mCurrentPageIndex;
private int mAlpha=255;
private String mText="闹钟";
private RadioButton rb1;
private RadioButton rb2;
private RadioButton rb3;
private RadioButton rb4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initTabLine();
}
private void initView() {
View view1 = LayoutInflater.from(this).inflate(R.layout.tab1, null);
View view2 = LayoutInflater.from(this).inflate(R.layout.tab2, null);
View view3 = LayoutInflater.from(this).inflate(R.layout.tab3, null);
View view4 = LayoutInflater.from(this).inflate(R.layout.tab4, null);
rb1= (RadioButton) findViewById(R.id.button1);
rb2= (RadioButton) findViewById(R.id.button2);
rb3= (RadioButton) findViewById(R.id.button3);
rb4= (RadioButton) findViewById(R.id.button4);
rb1.setOnClickListener(this);
rb2.setOnClickListener(this);
rb3.setOnClickListener(this);
rb4.setOnClickListener(this);
mList.add(view1);
mList.add(view2);
mList.add(view3);
mList.add(view4);
mViewPager= (ViewPager) findViewById(R.id.viewpager);
mViewPager.setAdapter(new PagerAdapter() {
@Override
public int getCount() {
return mList.size();
}
@Override
public int getItemPosition(Object object) {
return super.getItemPosition(object);
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(mList.get(position));
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
((ViewPager) container).addView(mList.get(position));
return mList.get(position);
}
@Override
public CharSequence getPageTitle(int position) {
return super.getPageTitle(position);
}
@Override
public boolean isViewFromObject(View view, Object o) {
return view == o;
}
});
mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
Log.d("caohaidemo", "position:" + position);
Log.d("caohaidemo", "mCurrentPageIndex:" + mCurrentPageIndex);
Log.d("caohaidemo", "positionOffset:" + positionOffset);
FrameLayout.LayoutParams lp = (android.widget.FrameLayout.LayoutParams) mTabline
.getLayoutParams();
if (mCurrentPageIndex == 0 && position == 0)// 0->1
{
lp.leftMargin = (int) (positionOffset * mScreen1_4 + mCurrentPageIndex
* mScreen1_4);
if (positionOffset > 0 && positionOffset < 0.5) {
mAlpha = 255 - ((int) (255 * (positionOffset)));
mText = "闹钟";
Log.d("naozhong", "naonaonao");
} else if (positionOffset > 0.5 && positionOffset < 1) {
// mAlpha=(int) (255*positionOffset);
mAlpha = (int) (122 + (positionOffset - 0.5) * 255);
mText = "世界时钟";
// mTabline.setTextColor(Color.argb((int) (mAlpha+(positionOffset-0.5)*255), 0, 134, 139));
}
} else if (mCurrentPageIndex == 1 && position == 0)// 1->0
{
lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_4 + (positionOffset - 1)
* mScreen1_4);
if (positionOffset > 0 && positionOffset < 0.5) {
mAlpha = 255 - ((int) (255 * (positionOffset)));
mText = "闹钟";
} else if (positionOffset > 0.5 && positionOffset < 1) {
// mAlpha=(int) (255*positionOffset);
mAlpha = (int) (122 + (positionOffset - 0.5) * 255);
mText = "世界时钟";
Log.d("naozhong", "zhongzhong");
}
} else if (mCurrentPageIndex == 1 && position == 1) // 1->2
{
lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_4 + positionOffset
* mScreen1_4);
if (positionOffset > 0 && positionOffset < 0.5) {
mAlpha = 255 - ((int) (255 * (positionOffset)));
mText = "世界时钟";
} else if (positionOffset > 0.5 && positionOffset < 1) {
// mAlpha=(int) (255*positionOffset);
mAlpha = (int) (122 + (positionOffset - 0.5) * 255);
;
mText = "秒表";
}
} else if (mCurrentPageIndex == 2 && position == 1) // 2->1
{
lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_4 + (positionOffset - 1)
* mScreen1_4);
if (positionOffset > 0 && positionOffset < 0.5) {
mAlpha = 255 - ((int) (255 * (positionOffset)));
mText = "世界时钟";
} else if (positionOffset > 0.5 && positionOffset < 1) {
// mAlpha=(int) (255*positionOffset);
mAlpha = (int) (122 + (positionOffset - 0.5) * 255);
mText = "秒表";
}
} else if (mCurrentPageIndex == 2 && position == 2) {//2->3
lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_4 + positionOffset
* mScreen1_4);
if (positionOffset > 0 && positionOffset < 0.5) {
mAlpha = 255 - ((int) (255 * (positionOffset)));
mText = "秒表";
} else if (positionOffset > 0.5 && positionOffset < 1) {
// mAlpha=(int) (255*positionOffset);
mAlpha = (int) (122 + (positionOffset - 0.5) * 255);
mText = "倒计时";
}
} else if (mCurrentPageIndex == 3 && position == 2) {//3->2
lp.leftMargin = (int) (mCurrentPageIndex * mScreen1_4 + (positionOffset - 1)
* mScreen1_4);
if (positionOffset > 0 && positionOffset < 0.5) {
mAlpha = 255 - ((int) (255 * (positionOffset)));
mText = "秒表";
} else if (positionOffset > 0.5 && positionOffset < 1) {
// mAlpha=(int) (255*positionOffset);
mAlpha = (int) (122 + (positionOffset - 0.5) * 255);
mText = "倒计时";
}
}
mTabline.setText(mText);
mTabline.setTextColor(Color.argb(mAlpha, 0, 134, 139));
mTabline.setLayoutParams(lp);
}
@Override
public void onPageSelected(int position) {
mCurrentPageIndex = position;
switch (position) {
case 0:
mText = "闹钟";
break;
case 1:
mText = "世界时钟";
break;
case 2:
mText = "秒表";
break;
case 3:
mText = "倒计时";
break;
}
mTabline.setText(mText);
Log.d("naozhong", "0000:" + position);
// mTabline.setTextColor(Color.argb(255, 0, 134, 139));
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
}
//设置滑动的tab的长度
private void initTabLine()
{
mTabline = (TextView) findViewById(R.id.text);
mTabline.setTextColor(Color.argb(255, 0, 134, 139));
Display display = getWindow().getWindowManager().getDefaultDisplay();
DisplayMetrics outMetrics = new DisplayMetrics();
display.getMetrics(outMetrics);
mScreen1_4 = outMetrics.widthPixels / 4;
LayoutParams lp = mTabline.getLayoutParams();
lp.width = mScreen1_4;
mTabline.setLayoutParams(lp);
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.button1:
mViewPager.setCurrentItem(0,true);
break;
case R.id.button2:
mViewPager.setCurrentItem(1,true);
break;
case R.id.button3:
mViewPager.setCurrentItem(2,true);
break;
case R.id.button4:
mViewPager.setCurrentItem(3,true);
break;
default:
break;
}
}
}
主布局：
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<RadioGroup
android:background="@drawable/tab_bg"
android:id="@+id/button"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="45dp">
<RadioButton
android:textColor="#000000"
android:textSize="16sp"
android:button="@null"
android:gravity="center"
android:text="闹钟"
android:id="@+id/button1"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent" />
<RadioButton
android:textColor="#000000"
android:textSize="16sp"
android:button="@null"
android:gravity="center"
android:text="世界时钟"
android:id="@+id/button2"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent" />
<RadioButton
android:textColor="#000000"
android:textSize="16sp"
android:button="@null"
android:gravity="center"
android:text="秒表"
android:id="@+id/button3"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent" />
<RadioButton
android:textColor="#000000"
android:textSize="16sp"
android:button="@null"
android:gravity="center"
android:text="倒计时"
android:id="@+id/button4"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent" />
</RadioGroup>
<TextView
android:id="@+id/text"
android:textColor="#000000"
android:textSize="16sp"
android:background="#ffffff"
android:gravity="center"
android:text="动态"
android:layout_width="30dp"
android:layout_height="45dp" />
<!--<View-->
<!--android:layout_marginTop="60dp"-->
<!--android:background="#000000"-->
<!--android:layout_width="match_parent"-->
<!--android:layout_height="1dp"/>-->
<android.support.v4.view.ViewPager
android:background="#ffffff"
android:id="@+id/viewpager"
android:layout_marginTop="45dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
</FrameLayout>
tab背景：
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:startColor="#DCDCDC"
android:centerColor="#F8F8FF"
android:endColor="#ffffff"
android:angle="270" />
/>
</shape>
4个tab页的布局就不上传了。都是布局里面加上一个TextView