android ActivityGroup demo

package com.qxw.music; import com.qxw.custom.ImageTextButton; import android.app.ActivityGroup; import android.app.LocalActivityManager; import android.content.Intent; import android.os.Bundle; import android.view.GestureDetector; import android.view.MotionEvent; import android.view.View; import android.view.GestureDetector.OnGestureListener; import android.view.View.OnTouchListener; import android.view.animation.AccelerateInterpolator; import android.view.animation.Animation; import android.view.animation.TranslateAnimation; import android.widget.ViewFlipper; public class MusicMain extends ActivityGroup implements OnGestureListener,OnTouchListener { //声明ViewFlipper对象 private ViewFlipper m_ViewFlipper; //声明GestureDetector对象 private GestureDetector m_GestureDetector; //声明LocalActivityManager对象 private LocalActivityManager m_ActivityManager; private static int FLING_MIN_DISTANCE = 100; private static int FLING_MIN_VELOCITY = 200; //定义自定义图片加文字按钮ImageTextButton对象 private ImageTextButton now_playing; private ImageTextButton native_music; private ImageTextButton network_music; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //设置内容试图 setContentView(R.layout.music_main); //构建ImageTextButton对象 now_playing = (ImageTextButton) findViewById(R.id.now_playing); native_music = (ImageTextButton) findViewById(R.id.native_music); network_music = (ImageTextButton) findViewById(R.id.network_music); //构建ViewFlipper对象 m_ViewFlipper = (ViewFlipper) findViewById(R.id.fliper); //获取Activity消息 m_ActivityManager = getLocalActivityManager(); //注册一个用于手势识别的类 m_GestureDetector = new GestureDetector(this); //添加视图，指定每个视图对应的Activity m_ViewFlipper.addView((m_ActivityManager.startActivity("", new Intent(MusicMain.this,NowPlay.class)).getDecorView()),0); m_ViewFlipper.addView((m_ActivityManager.startActivity("", new Intent(MusicMain.this,NativeMusic.class)).getDecorView()),1); m_ViewFlipper.addView((m_ActivityManager.startActivity("", new Intent(MusicMain.this,NetworkMusic.class)).getDecorView()),2); //给ViewFlipper设置一个listener m_ViewFlipper.setOnTouchListener(this); //默认为正在播放页面并设置图标 now_playing.setIcon(R.drawable.frame_player_press); //设置相应元素索引显示的子视图 m_ViewFlipper.setDisplayedChild(0); //允许长按住ViewFlipper,这样才能识别拖动等手势 m_ViewFlipper.setLongClickable(true); //监听 BindListener(); } /** * 监听本Activity中所要监听的对象 */ public void BindListener() { //监听正在播放按钮事件 now_playing.setOnClickListener(new ImageTextButton.OnClickListener() { public void onClick(View v) { //点击之后改变图片 now_playing.setIcon(R.drawable.frame_player_press); native_music.setIcon(R.drawable.frame_local_normal); network_music.setIcon(R.drawable.frame_internet_normal); // //设置View进入屏幕时候使用的动画 // m_ViewFlipper.setInAnimation(inFromRightAnimation()); // //设置View退出屏幕时候使用的动画 // m_ViewFlipper.setOutAnimation(outToLeftAnimation()); //设置相应元素索引显示的子视图 m_ViewFlipper.setDisplayedChild(0); } }); //监听本地歌曲按钮事件 native_music.setOnClickListener(new ImageTextButton.OnClickListener() { public void onClick(View v) { //点击之后改变图片 now_playing.setIcon(R.drawable.frame_player_normal); native_music.setIcon(R.drawable.frame_local_press); network_music.setIcon(R.drawable.frame_internet_normal); //设置View进入屏幕时候使用的动画 // m_ViewFlipper.setInAnimation(inFromRightAnimation()); // //设置View退出屏幕时候使用的动画 // m_ViewFlipper.setOutAnimation(outToLeftAnimation()); //设置相应元素索引显示的子视图 m_ViewFlipper.setDisplayedChild(1); } }); //监听网络歌曲按钮事件 network_music.setOnClickListener(new ImageTextButton.OnClickListener() { public void onClick(View v) { //点击之后改变图片 now_playing.setIcon(R.drawable.frame_player_normal); native_music.setIcon(R.drawable.frame_local_normal); network_music.setIcon(R.drawable.frame_internet_press); // //设置View进入屏幕时候使用的动画 // m_ViewFlipper.setInAnimation(inFromRightAnimation()); // //设置View退出屏幕时候使用的动画 // m_ViewFlipper.setOutAnimation(outToLeftAnimation()); //设置相应元素索引显示的子视图 m_ViewFlipper.setDisplayedChild(2); } }); } /** * 定义从右侧进入的动画效果 * @return */ public Animation inFromRightAnimation() { Animation inFromRight = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, +1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f); inFromRight.setDuration(500); inFromRight.setInterpolator(new AccelerateInterpolator()); return inFromRight; } /** * 定义从左侧退出的动画效果 * @return */ public Animation outToLeftAnimation() { Animation outtoLeft = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, -1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f); outtoLeft.setDuration(500); outtoLeft.setInterpolator(new AccelerateInterpolator()); return outtoLeft; } /** * 定义从左侧进入的动画效果 * @return */ public Animation inFromLeftAnimation() { Animation inFromLeft = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, -1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f); inFromLeft.setDuration(500); inFromLeft.setInterpolator(new AccelerateInterpolator()); return inFromLeft; } /** * 定义从右侧退出时的动画效果 * @return */ public Animation outToRightAnimation() { Animation outtoRight = new TranslateAnimation( Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, +1.0f, Animation.RELATIVE_TO_PARENT, 0.0f, Animation.RELATIVE_TO_PARENT, 0.0f); outtoRight.setDuration(500); outtoRight.setInterpolator(new AccelerateInterpolator()); return outtoRight; } @Override public boolean onDown(MotionEvent e) { return false; } @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { //当像左侧滑动的时候 if(e1.getX()-e2.getX()>FLING_MIN_DISTANCE && Math.abs(velocityX)>FLING_MIN_VELOCITY) { //设置View进入屏幕时候使用的动画 m_ViewFlipper.setInAnimation(inFromRightAnimation()); //设置View退出屏幕时候使用的动画 m_ViewFlipper.setOutAnimation(outToLeftAnimation()); //下一个页面 m_ViewFlipper.showNext(); //获取相应元素索引显示的子视图 int child = m_ViewFlipper.getDisplayedChild(); switch(child) { case 0: now_playing.setIcon(R.drawable.frame_player_press); native_music.setIcon(R.drawable.frame_local_normal); network_music.setIcon(R.drawable.frame_internet_normal); break; case 1: now_playing.setIcon(R.drawable.frame_player_normal); native_music.setIcon(R.drawable.frame_local_press); network_music.setIcon(R.drawable.frame_internet_normal); break; case 2: now_playing.setIcon(R.drawable.frame_player_normal); native_music.setIcon(R.drawable.frame_local_normal); network_music.setIcon(R.drawable.frame_internet_press); break; case 3: now