編輯:關於Android編程
PlayActivity如下:
package com.iwanghang.drmplayer; import android.graphics.Bitmap; import android.media.MediaPlayer; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.widget.ImageView; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; import android.widget.TextView; import android.widget.Toast; import com.douzi.android.view.DefaultLrcBuilder; import com.douzi.android.view.ILrcBuilder; import com.douzi.android.view.ILrcView; import com.douzi.android.view.LrcRow; import com.douzi.android.view.LrcView; import com.iwanghang.drmplayer.adapter.ViewPagerAdapter; import com.iwanghang.drmplayer.utils.Constant; import com.iwanghang.drmplayer.utils.ImageUtils; import com.iwanghang.drmplayer.utils.MediaUtils; import com.iwanghang.drmplayer.vo.Mp3Info; import com.lidroid.xutils.db.sqlite.Selector; import com.lidroid.xutils.exception.DbException; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStreamReader; import java.lang.ref.WeakReference; import java.util.ArrayList; import java.util.List; import static com.iwanghang.drmplayer.PlayService.ORDER_PLAY; import static com.iwanghang.drmplayer.PlayService.RANDOM_PLAY; import static com.iwanghang.drmplayer.PlayService.SINGLE_PLAY; /** * PlayActivity 點擊MyMusicListFragment(本地音樂)底部UI中的專輯封面圖片打開的Activity */ public class PlayActivity extends BaseActivity implements OnClickListener, OnSeekBarChangeListener ,OnPageChangeListener { private TextView textView2_title;//歌名 private ImageView imageView1_ablum;//專輯封面圖片 private SeekBar seekBar1;//進度條 private TextView textView1_start_time, textView1_end_time;//開始時間,結束時間 private ImageView imageView1_play_mode;//菜單 private ImageView imageView3_previous, imageView2_play_pause, imageView1_next;//上一首,播放暫停,下一首 private ImageView imageView1_ablum_reflection;//專輯封面圖片倒影 private ImageView imageView1_favorite;//收藏按鈕 //private ArrayListmp3Infos; //private int position;//當前播放的位置 private boolean isPause = false;//當前播放的是否為暫停狀態 private static final int UPDATE_TIME = 0x10;//更新播放事件的標記 private DRMPlayerApp app;//取出全局對象 方便調用 //歌詞 private ViewPager viewPager; private LrcView lrcView;// 自定義歌詞視圖 private ArrayList views = new ArrayList<>(); private static final int UPDATE_LRC = 0x20;//更新播放事件的標記 ILrcView mLrcView; public final static String TAG = "PlayActivity"; private MediaPlayer mPlayer; private ViewPagerAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_music_play); //取出全局對象 方便調用 app = (DRMPlayerApp) getApplication(); //初始化界面信息 //textView2_title = (TextView) findViewById(R.id.textView2_title);//歌名 //imageView1_ablum = (ImageView) findViewById(R.id.imageView1_ablum);//專輯封面圖片 seekBar1 = (SeekBar) findViewById(R.id.seekBar1);//進度條 textView1_start_time = (TextView) findViewById(R.id.textView1_start_time);//開始時間 textView1_end_time = (TextView) findViewById(R.id.textView1_end_time);//結束時間 imageView1_play_mode = (ImageView) findViewById(R.id.imageView1_play_mode);//菜單 imageView3_previous = (ImageView) findViewById(R.id.imageView3_previous);//上一首 imageView2_play_pause = (ImageView) findViewById(R.id.imageView2_play_pause);//播放暫停 imageView1_next = (ImageView) findViewById(R.id.imageView1_next);//下一首 imageView1_favorite = (ImageView) findViewById(R.id.imageView1_favorite);//收藏按鈕 lrcView = (LrcView) findViewById(R.id.lrcView);//自定義歌詞視圖 //注冊按鈕點擊監聽事件 imageView1_play_mode.setOnClickListener(this); imageView2_play_pause.setOnClickListener(this); imageView3_previous.setOnClickListener(this); imageView1_next.setOnClickListener(this); seekBar1.setOnSeekBarChangeListener(this); imageView1_favorite.setOnClickListener(this); //mp3Infos = MediaUtils.getMp3Infos(this); //bindPlayService();//綁定服務,異步過程,綁定後需要取得相應的值,來更新界面 myHandler = new MyHandler(this); //獨立音樂播放界面 和 歌詞界面 //viewPager = (ViewPager) findViewById(R.id.fgv_player_main); viewPager = (ViewPager) findViewById(R.id.viewpager); initViewPager();//初始化 //以下直接調用change()是不行的,因為異步問題,會發生NullPointerException空指針異常 //從MyMusicListFragment的專輯封面圖片點擊時間傳過來的position(當前播放的位置) //position = getIntent().getIntExtra("position",0); //change(position); //通過在BaseActivity中綁定Service,添加如下代碼實現change() //musicUpdatrListener.onChange(playService.getCurrentProgeress()); //從MyMusicListFragment的專輯封面圖片點擊時間傳過來的isPause(當前播放的是否為暫停狀態) //isPause = getIntent().getBooleanExtra("isPause",false); // mLrcView = new LrcView(this, null); // setContentView((View) mLrcView); // // //在目標位置讀取lrc文件 // File LrcDirFile = new File(Environment.getExternalStorageDirectory() + Constant.DIR_LRC); // System.out.println("LrcDirFile : " + LrcDirFile); // if (!LrcDirFile.exists()) { // LrcDirFile.mkdirs(); // } // //把lrc轉成字符串 // String lrc = LrcDirFile + "/" + "山丘" + ".lrc"; // //Log.d的輸出顏色是藍色的,僅輸出debug調試的意思,但他會輸出上層的信息,過濾起來可以通過DDMS的Logcat標簽來選擇. // Log.d(TAG, "lrc:" + lrc); // // //把lrc的字符串 轉成數組 // ILrcBuilder builder = new DefaultLrcBuilder(); // List rows = builder.getLrcRows(lrc); // // //把lrc數組 設置到mLrcView裡 // mLrcView.setLrc(rows); // //beginLrcPlay(); // // //設置監聽器,監聽歌詞滾動 // mLrcView.setListener(new ILrcView.LrcViewListener() { // public void onLrcSeeked(int newPosition, LrcRow row) { // if (mPlayer != null) { // Log.d(TAG, "onLrcSeeked:" + row.time); // mPlayer.seekTo((int)row.time);//用戶滑動歌詞界面,調整進度 // } // } // }); } private void initViewPager() {//專輯封面圖片Pager與歌詞Pager //View album_image_layout = getLayoutInflater().inflate(R.layout.album_image_layout, null); //System.out.println("PlayActivity.initViewPager.album_image_layout:" + album_image_layout); View album_image_layout = LayoutInflater.from(getApplicationContext()).inflate(R.layout.album_image_layout, null); System.out.println("PlayActivity.initViewPager.album_image_layout:" + album_image_layout); //初始化界面信息 //textView2_title = (TextView) findViewById(R.id.textView2_title);//歌名 //這裡要注意下,直接findViewById,返回的是textView2_title是null;像下面這樣,加上layout才可以,否則在change的時候會報空指針異常 textView2_title = (TextView) album_image_layout.findViewById(R.id.textView2_title);//歌名 //System.out.println("PlayActivity.initViewPager.textView2_title:" + textView2_title); //System.out.println("PlayActivity.initViewPager.textView2_title.getText:" + textView2_title.getText()); imageView1_ablum = (ImageView) album_image_layout.findViewById(R.id.imageView1_ablum);//專輯封面圖片 imageView1_ablum_reflection = (ImageView) album_image_layout.findViewById(R.id.imageView1_ablum_reflection);//專輯封面圖片倒影 views.add(album_image_layout);//添加專輯封面圖片Pager //View lrc_layout = getLayoutInflater().inflate(R.layout.lrc_layout, null); View lrc_layout = LayoutInflater.from(getApplicationContext()).inflate(R.layout.lrc_layout, null); System.out.println("PlayActivity.initViewPager.lrc_layout:" + lrc_layout); lrcView = (LrcView) lrc_layout.findViewById(R.id.lrcView); //設置滾動事件 lrcView.setListener(new ILrcView.LrcViewListener() { @Override public void onLrcSeeked(int newPosition, LrcRow row) { if (playService.isPlaying()) { playService.seekTo((int) row.time); } } }); lrcView.setLoadingTipText("正在加載歌詞......"); lrcView.setBackgroundResource(R.mipmap.app_splash_bg); lrcView.getBackground().setAlpha(150);//背景透明度0-255 views.add(lrc_layout); System.out.println("PlayActivity.initViewPager.views:" + views); //adapter = new ViewPagerAdapter(views); adapter = new ViewPagerAdapter(views); viewPager.setAdapter(adapter); //viewPager.setAdapter(new ViewPagerAdapter(views)); System.out.println("PlayActivity.initViewPager.viewPager:" + viewPager); viewPager.addOnPageChangeListener(this); System.out.println("PlayActivity.initViewPager.viewPager:" + viewPager); } //把播放服務的綁定和解綁放在onResume,onPause裡,好處是,每次回到當前Activity就獲取一次播放狀態 @Override protected void onResume() { super.onResume(); bindPlayService();//綁定服務 } @Override protected void onPause() { super.onPause(); unbindPlayService();//解綁服務 } @Override protected void onDestroy() { super.onDestroy(); unbindPlayService();//解綁服務 } //Handler用於更新已經播放時間 private static MyHandler myHandler; //進度條改變 (fromUser 是否來自用戶的改變 , 而不是程序自身控制的改變) @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { if (fromUser) { //playService.pause();//暫停 playService.seekTo(progress);//尋找指定的時間位置 (跳到某個時間點進行播放) //playService.start();//播放 } } //進度條開始觸摸 @Override public void onStartTrackingTouch(SeekBar seekBar) { } //進度條停止觸摸 @Override public void onStopTrackingTouch(SeekBar seekBar) { } //頁面滾動 @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } //頁面選擇 @Override public void onPageSelected(int position) { } //頁面滾動狀態改變 @Override public void onPageScrollStateChanged(int state) { } static class MyHandler extends Handler { private PlayActivity playActivity; private WeakReference weak;//弱引用 public MyHandler(PlayActivity playActivity) { //this.playActivity = playActivity; weak = new WeakReference (playActivity); } @Override public void handleMessage(Message msg) { super.handleMessage(msg); //System.out.println("PlayActivity.MyHandler.weak = " + weak); playActivity = weak.get(); //System.out.println("PlayActivity.MyHandler.playActivity = " + playActivity); if (playActivity != null) { switch (msg.what) { case UPDATE_TIME://更新時間(已經播放時間) playActivity.textView1_start_time.setText(MediaUtils.formatTime((int) msg.obj)); break; case UPDATE_LRC: playActivity.lrcView.seekLrcToTime((int) msg.obj); break; default: break; } } } } @Override public void publish(int progress) { //以下是是直接調用線程,但是不能這樣做,會報錯,線程異常 //textView1_start_time.setText(MediaUtils.formatTime(progress)); //所以,我們需要使用Handler //Message msg = myHandler.obtainMessage(UPDATE_TIME);//用於更新已經播放時間 //msg.arg1 = progress;//用於更新已經播放時間 //myHandler.sendMessage(msg);//用於更新已經播放時間 //seekBar1.setProgress(progress); myHandler.obtainMessage(UPDATE_TIME, progress).sendToTarget(); seekBar1.setProgress(progress); myHandler.obtainMessage(UPDATE_LRC, progress).sendToTarget(); //System.out.println("PlayActivity.publish.myHandler = " + myHandler); //System.out.println("PlayActivity.publish.UPDATE_LRC = " + UPDATE_LRC); //System.out.println("PlayActivity.publish.progress = " + progress); } @Override public void change(int position) {//初始化,獨立播放界面的歌曲切換後的初始化界面上的歌曲信息 //if (this.playService.isPlaying()) {//獲取是否為播放狀態 //System.out.println("PlayActivity.change.position = " + position); Mp3Info mp3Info = playService.mp3Infos.get(position); //System.out.println("PlayActivity.change.getTitle = " + mp3Info.getTitle()); textView2_title.setText(mp3Info.getTitle());//設置歌名 //textView2_title.setTtileText(mp3Info.getTitle());//設置歌名 //System.out.println("PlayActivity.change.textView2_title = " + textView2_title); //System.out.println("PlayActivity.change.getText : " + textView2_title.getText()); //System.out.println("PlayActivity.change.getText : " + textView2_title.getTtileText()); //下面這句話是提交更新UI的,但是這個功能在adapter裡面實現了,但是實現的方式,只適合UI需要更新的內容很少的時候 //而且,就算使用,也是設置了專輯圖片和倒影,以後使用,不是這裡. //之所以放在這裡,是因為我開始調試的時候,無法setText,最後通過Debug找到了問題所在 //以後我會專門開個博文,介紹一下Debug //adapter.notifyDataSetChanged(); //setText後,歌名沒有顯示,但是可以getText,嘗試隱藏/顯示,來刷新UI,結果歌名還是沒有顯示 //viewPager.setVisibility(View.GONE); //getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.activity_music_play); //viewPager.setVisibility(View.VISIBLE); //setText後,歌名沒有顯示,但是可以getText,嘗試隱藏/顯示,來刷新UI,結果歌名還是沒有顯示 //viewPager.setVisibility(View.GONE); //viewPager.setVisibility(View.VISIBLE); //獲取專輯封面圖片 Bitmap albumBitmap = MediaUtils.getArtwork(this, mp3Info.getId(), mp3Info.getAlbumId(), true, false); //改變播放界面專輯封面圖片 imageView1_ablum.setImageBitmap(albumBitmap); textView1_end_time.setText(MediaUtils.formatTime(mp3Info.getDuration()));//設置結束時間 imageView2_play_pause.setImageResource(R.mipmap.app_music_pause);//設置暫停圖片 seekBar1.setProgress(0);//設置當前進度為0 seekBar1.setMax((int) mp3Info.getDuration());//設置進度條最大值為MP3總時間 if (playService.isPlaying()) { imageView2_play_pause.setImageResource(R.mipmap.app_music_pause); } else { imageView2_play_pause.setImageResource(R.mipmap.app_music_play); } if (imageView1_ablum != null) { imageView1_ablum_reflection.setImageBitmap(ImageUtils.createReflectionBitmapForSingle(albumBitmap));//顯示倒影 } switch (playService.getPlay_mode()) { case ORDER_PLAY://順序播放 imageView1_play_mode.setImageResource(R.mipmap.app_mode_order); //imageView2_play_pause.setTag(ORDER_PLAY); break; case PlayService.RANDOM_PLAY://隨機播放 imageView1_play_mode.setImageResource(R.mipmap.app_mode_random); //imageView2_play_pause.setTag(RANDOM_PLAY); break; case PlayService.SINGLE_PLAY://單曲循環 imageView1_play_mode.setImageResource(R.mipmap.app_mode_single); //imageView2_play_pause.setTag(SINGLE_PLAY); break; default: break; } long id = getId(mp3Info); //初始化收藏狀態 try { Mp3Info loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId", "=", mp3Info.getMp3InfoId()));//查出歌曲,SQL語句 System.out.println("初始化收藏狀態" + loveMp3Info); // if (loveMp3Info != null) { // imageView1_favorite.setImageResource(R.mipmap.app_love_selected); // } else { // imageView1_favorite.setImageResource(R.mipmap.app_love_unselected); // } if (loveMp3Info != null) { System.out.println("loveMp3Info.getIsLove() = " + loveMp3Info.getIsLove()); if (loveMp3Info.getIsLove() == 0) {//返回值不為null,且,isLove為0時,也顯示為'未收藏' imageView1_favorite.setImageResource(R.mipmap.app_love_unselected); }else {//返回值為null,且,isLove為1時,一定顯示為'已收藏' imageView1_favorite.setImageResource(R.mipmap.app_love_selected); } } else {//返回值為null,一定顯示為'未收藏' imageView1_favorite.setImageResource(R.mipmap.app_love_unselected); } } catch (DbException e) { e.printStackTrace(); } //歌詞 String songName = mp3Info.getTitle(); //歌詞功能還不完善,後面會博文,會繼續完善,暫時使用我已經下載好的lrc測試效果. songName = "山丘";//測試用的lrc的歌名 String lrcPath = Environment.getExternalStorageDirectory() + Constant.DIR_LRC + "/" + songName + ".lrc"; File lrcFile = new File(lrcPath); if (!lrcFile.exists()){ //下載 System.out.println("請下載歌詞"); }else{ loadLRC(lrcFile); } } //如果是本地音樂,id就是id;如果是收藏音樂,id則是mp3InfoId //提供給 收藏按鈕 點擊事件時 調用. private long getId(Mp3Info mp3Info){ //初始收藏狀態 long id = 0; switch (playService.getChangePlayList()){ case PlayService.MY_MUSIC_LIST: System.out.println("當前為本地列表"); id = mp3Info.getId(); System.out.println("id =" + id); break; case PlayService.LOVE_MUSIC_LIST: System.out.println("當前為收藏列表"); id = mp3Info.getMp3InfoId(); System.out.println("id =" + id); break; default: break; } return id; } //點擊事件 @Override public void onClick(View v) { switch (v.getId()) { case R.id.imageView2_play_pause: {//播放暫停按鈕 if (playService.isPlaying()) {//如果是播放狀態 imageView2_play_pause.setImageResource(R.mipmap.app_music_play);//設置播放圖片 playService.pause(); } else { if (playService.isPause()) { imageView2_play_pause.setImageResource(R.mipmap.app_music_pause);//設置暫停圖片 playService.start();//播放事件 } else { //只有打開APP沒有點擊任何歌曲,同時,直接點擊暫停播放按鈕時.才會調用 //playService.play(0); //只有打開APP沒有點擊任何歌曲,同時,直接點擊暫停播放按鈕時.才會調用 //默認播放的是,在PlayService的onCreate中 恢復狀態值 playService.play(playService.getCurrentPosition()); } } break; } case R.id.imageView1_next: {//下一首按鈕 playService.next();//下一首 break; } case R.id.imageView3_previous: {//上一首按鈕 playService.prev();//上一首 break; } case R.id.imageView1_play_mode: {//循環模式按鈕 //int mode = (int) imageView1_play_mode.getTag(); /** * 以下Tosat內容,在strings.xml裡,添加對應代碼 * 順序播放 *隨機播放 *單曲循環 */ switch (playService.getPlay_mode()) { case ORDER_PLAY: imageView1_play_mode.setImageResource(R.mipmap.app_mode_random); //imageView1_play_mode.setTag(RANDOM_PLAY); playService.setPlay_mode(RANDOM_PLAY); //Toast.makeText(getApplicationContext(),"隨機播放",Toast.LENGTH_SHORT).show();//這句也可以 //Toast.makeText(PlayActivity.this, "隨機播放", Toast.LENGTH_SHORT).show();//這句也可以 Toast.makeText(PlayActivity.this, getString(R.string.random_play), Toast.LENGTH_SHORT).show(); break; case RANDOM_PLAY: imageView1_play_mode.setImageResource(R.mipmap.app_mode_single); //imageView1_play_mode.setTag(SINGLE_PLAY); playService.setPlay_mode(SINGLE_PLAY); //Toast.makeText(getApplicationContext(),"單曲循環",Toast.LENGTH_SHORT).show();//這句也可以 //Toast.makeText(PlayActivity.this, "單曲循環", Toast.LENGTH_SHORT).show();//這句也可以 Toast.makeText(PlayActivity.this, getString(R.string.single_play), Toast.LENGTH_SHORT).show(); break; case SINGLE_PLAY: imageView1_play_mode.setImageResource(R.mipmap.app_mode_order); //imageView1_play_mode.setTag(ORDER_PLAY); playService.setPlay_mode(ORDER_PLAY); //Toast.makeText(getApplicationContext(),"順序播放",Toast.LENGTH_SHORT).show();//這句也可以 //Toast.makeText(PlayActivity.this, "順序播放", Toast.LENGTH_SHORT).show();//這句也可以 Toast.makeText(PlayActivity.this, getString(R.string.order_play), Toast.LENGTH_SHORT).show(); break; } break; } case R.id.imageView1_favorite: {//收藏按鈕 //在vo.Mp3Info裡 private long mp3InfoId;//在收藏音樂時用於保存原始ID Mp3Info mp3Info = playService.mp3Infos.get(playService.getCurrentPosition());//查出歌曲 System.out.println(mp3Info); try { Mp3Info loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId","=",getId(mp3Info)));//查出歌曲,SQL語句 System.out.println(loveMp3Info); if (loveMp3Info==null){//返回值為null,則一定需要save System.out.println("不在音樂收藏數據庫中 保存音樂數據 原始數據: " + mp3Info); mp3Info.setMp3InfoId(mp3Info.getId()); mp3Info.setIsLove(1); System.out.println(mp3Info); app.dbUtils.save(mp3Info);//在音樂收藏數據庫 保存音樂 System.out.println("save"); imageView1_favorite.setImageResource(R.mipmap.app_love_selected); //以下是:調試使用,保存以後再查一遍 loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId","=",getId(mp3Info)));//查出歌曲,SQL語句 System.out.println("調試使用,保存以後再查一遍 最新數據: " + loveMp3Info); }else {//返回值不為null,則一定需要update System.out.println("在音樂收藏數據庫中 更新音樂數據 原始數據: " + loveMp3Info); int isLove = loveMp3Info.getIsLove(); if (isLove==1){//返回值不為null,且,isLove為1時;設置isLove為0,同時顯示為'未收藏' loveMp3Info.setIsLove(0); imageView1_favorite.setImageResource(R.mipmap.app_love_unselected); }else {//返回值不為null,且,isLove為0時;設置isLove為1,同時顯示為'已收藏' loveMp3Info.setIsLove(1); imageView1_favorite.setImageResource(R.mipmap.app_love_selected); } System.out.println("update"); app.dbUtils.update(loveMp3Info,"isLove");//更新loveMp3Info數據 //以下是:調試使用,更新以後再查一遍 loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId", "=", getId(mp3Info)));//查出歌曲,SQL語句 System.out.println("調試使用,更新以後再查一遍 最新數據: " + loveMp3Info); } } catch (DbException e) { e.printStackTrace(); } break; } default: break; } } //加載歌詞 private void loadLRC(File lrcFile){ StringBuffer buf = new StringBuffer(1024 * 10); char[] chars = new char[1024]; try { BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(lrcFile))); int len = -1; while ((len = in.read(chars)) != -1){ buf.append(chars,0,len); } in.close(); } catch (FileNotFoundException e) { e.printStackTrace(); }catch (IOException e) { e.printStackTrace(); } ILrcBuilder builder = new DefaultLrcBuilder(); Listrows = builder.getLrcRows(buf.toString()); lrcView.setLrc(rows); //加載專輯封面圖片為背景的方法(實際使用,發現效果不理想) //long id = mp3Info.getMp3InfoId()==0?mp3Info.getId:mp3Info.getMp3InfoId(); //Bitmap bg = MediaUtils.getArtwork(this, id ,mp3Info.getAlbumId(),false,false); //if(bg != null){ // lrcView.getBackground(new BitmapDrawable(getResources(),bg)); // lrcView.getBackground().setAlpha(120); //} } }
activity_music_play如下:
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="@dimen/activity_horizontal_margin"> <android.support.v4.view.viewpager android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignparentstart="true" android:layout_gravity="center" android:layout_above="@+id/linearLayout3"> </android.support.v4.view.viewpager> <linearlayout android:id="@+id/linearLayout3" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="10dp" android:orientation="vertical" android:layout_alignparentbottom="true"> <linearlayout android:id="@+id/linearLayout" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginbottom="10dp" android:orientation="horizontal"> <textview android:id="@+id/textView1_start_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="00:00" android:textcolor="@android:color/darker_gray"> <seekbar android:id="@+id/seekBar1" android:layout_width="235dp" android:layout_height="wrap_content" android:indeterminate="false"> <textview android:id="@+id/textView1_end_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="00:00" android:textcolor="@android:color/darker_gray"> </textview></seekbar></textview></linearlayout> <relativelayout android:id="@+id/linearLayout2" android:layout_width="match_parent" android:layout_height="50dp" android:layout_marginbottom="10dp" android:orientation="horizontal"> <imageview android:id="@+id/imageView1_play_mode" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@mipmap/app_music_order" android:layout_alignbottom="@+id/imageView3_previous" android:layout_alignparentstart="true"> <imageview android:id="@+id/imageView1_favorite" android:layout_width="40dp" android:layout_height="40dp" android:src="@mipmap/app_love_unselected" android:layout_alignparenttop="true" android:layout_toendof="@+id/imageView1_play_mode" android:layout_margintop="15dp" android:layout_marginstart="50dp"> <imageview android:id="@+id/imageView3_previous" android:layout_width="50dp" android:layout_height="50dp" android:layout_aligntop="@+id/imageView2_play_pause" android:layout_toleftof="@+id/imageView2_play_pause" android:src="@mipmap/app_music_previous"> <imageview android:id="@+id/imageView2_play_pause" android:layout_width="50dp" android:layout_height="50dp" android:layout_aligntop="@+id/imageView1_next" android:layout_toleftof="@+id/imageView1_next" android:src="@mipmap/app_music_play"> <imageview android:id="@+id/imageView1_next" android:layout_width="50dp" android:layout_height="50dp" android:layout_alignparentbottom="true" android:layout_alignparentright="true" android:src="@mipmap/app_music_next"> </imageview></imageview></imageview></imageview></imageview></relativelayout> </linearlayout> </relativelayout>
ViewPagerAdapter如下:
package com.iwanghang.drmplayer.adapter; import android.content.Context; import android.os.Parcelable; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import java.util.List; /** * Created by iwanghang on 16/5/10. * ViewPagerAdapter */ public class ViewPagerAdapter extends PagerAdapter { private Listlist; private Context context; public ViewPagerAdapter(List list) { this.list = list; } public ViewPagerAdapter(List list,Context context) { this.list = list; this.context = context; } @Override public int getCount() { if (list != null && list.size() > 0) { return list.size(); } else { return 0; } } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0 == arg1; } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } @Override public Object instantiateItem(ViewGroup container, int position) { container.addView(list.get(position)); return list.get(position); } @Override public int getItemPosition(Object object) { return POSITION_NONE; } }
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Software License .box { overflow:hidden