編輯：關於Android編程
本博客用Android studio集成了vitamio的自定義視頻播放器,同時可以在文件管理中選擇播放,想要一個自己的視頻播放器這邊便可以滿足
實現具體功能如下:
1.sd卡內存視頻文件的點擊播放;
2.視頻時間進度條;
3.屏幕亮度的手勢滑動;
4.視頻音量的手勢滑動;
5.多點手勢效果
6.自定義存儲視頻url播放
想要的重要的代碼,我懂得:
------------------------------軟件工程結構圖:
最重要的是依賴上vitamio庫:
-------------------------工具類FileUtil,檢查文件格式是否屬於自己定義的格式:
public class FileUtil {
public static final String[] VIDEO_EXTENSIONS = { "3gp", "amv",
"avb", "avd", "avi", "flh", "fli", "flv", "flx", "gvi", "gvp",
"hdmov", "hkm", "ifo", "imovi", "imovi", "iva", "ivf", "ivr",
"m4v", "m75", "meta", "mgv", "mj2", "mjp", "mjpg", "mkv", "mmv",
"mnv", "mod", "modd", "moff", "moi", "moov", "mov", "movie",
"mp21", "mp21", "mp2v", "mp4", "mp4v", "mpe", "mpeg", "mpeg4",
"mpf", "mpg", "mpg2", "mpgin", "mpl", "mpls", "mpv", "mpv2", "mqv",
"msdvd", "msh", "mswmm", "mts", "mtv", "mvb", "mvc", "mvd", "mve",
"mvp", "mxf", "mys", "ncor", "nsv", "nvc", "ogm", "ogv", "ogx",
"osp", "par", "pds", "pgi", "piv", "playlist", "pmf", "prel",
"pro", "prproj", "psh", "pva", "pvr", "pxv", "qt", "qtch", "qtl",
"qtm", "qtz", "rcproject", "rdb", "rec", "rm", "rmd", "rmp", "rms",
"rmvb", "roq", "rp", "rts", "rts", "rum", "rv", "sbk", "sbt",
"scm", "scm", "scn", "sec", "seq", "sfvidcap", "smil", "smk",
"sml", "smv", "spl", "ssm", "str", "stx", "svi", "swf", "swi",
"swt", "tda3mt", "tivo", "tix", "tod", "tp", "tp0", "tpd", "tpr",
"trp", "ts", "tvs", "vc1", "vcr", "vcv", "vdo", "vdr", "veg",
"vem", "vf", "vfw", "vfz", "vgz", "vid", "viewlet", "viv", "vivo",
"wma"
};
//集合放置所有支持視頻格式
private static final List listvideo = new ArrayList<>(
Arrays.asList(VIDEO_EXTENSIONS));
// 檢測是否是視頻文件
public static boolean isVideo(String path) {
path=getFileExtension(path);
return listvideo.contains(path);
}
// 獲取文件後綴名
public static String getFileExtension(String path) {
if (null != path) {
// 後綴點 的位置
int dex = path.lastIndexOf(".");
// 截取後綴名
return path.substring(dex + 1);
}
return null;
}
}
--------------------工具類FileUtil,檢查文件格式是否屬於自己定義的格式:
public class LocUtil {
// 獲取所有存儲路徑
public static List getDirs(Context context) {
List dirs = new ArrayList();
StorageManager storageManager = (StorageManager) context
.getSystemService(Context.STORAGE_SERVICE);
try {
Class[] paramClasses = {};
Method getVolumePathsMethod = StorageManager.class.getMethod(
"getVolumePaths", paramClasses);
getVolumePathsMethod.setAccessible(true);
Object[] params = {};
Object invoke = getVolumePathsMethod.invoke(storageManager, params);
for (int i = 0; i < ((String[]) invoke).length; i++) {
// System.out.println(((String[])invoke)[i]);
dirs.add(((String[]) invoke)[i]);
}
} catch (Exception e) {
e.printStackTrace();
}
return dirs;
}
//獲取最大音量
public static int getMaxVolume(Context context) {
return ((AudioManager) context.getSystemService(Context.AUDIO_SERVICE))
.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
}
// 獲取當前音量
public static int getCurVolume(Context context) {
return ((AudioManager) context.getSystemService(Context.AUDIO_SERVICE))
.getStreamVolume(AudioManager.STREAM_MUSIC);
}
// 設置當前音量
public static void setCurVolume(Context context, int index) {
((AudioManager) context.getSystemService(Context.AUDIO_SERVICE))
.setStreamVolume(AudioManager.STREAM_MUSIC, index, 0);
}
// 獲取屏幕像素
public static ScreenBean getScreenPix(Context context) {
Display dplay = ((VideoPlay) context).getWindowManager()
.getDefaultDisplay();
return new ScreenBean(dplay.getWidth(),dplay.getHeight());
}
}
public class ScreenBean {
private int sWidth;
private int sHeight;
public ScreenBean(int sWidth, int sHeight) {
super();
this.sWidth = sWidth;
this.sHeight = sHeight;
}
public int getsWidth() {
return sWidth;
}
public void setsWidth(int sWidth) {
this.sWidth = sWidth;
}
public int getsHeight() {
return sHeight;
}
public void setsHeight(int sHeight) {
this.sHeight = sHeight;
}
}
----------------------中轉傳遞界面MainActivity類:
public class MainActivity extends AppCompatActivity {
String Path;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent getPath=getIntent();
String action = getPath.getAction();
if(getPath.ACTION_VIEW.equals(action)){
Path=getPath.getDataString();
}else {
Path= Environment.getExternalStorageDirectory() + "/test.mp4";
}
Intent intent = new Intent(this, VideoPlay.class);
intent.putExtra("videoURL",Path);
startActivity(intent);
finish();
}
}
這個界面是中轉,開發時一般自己定義,
Path=getPath.getDataString();//獲取sd卡的視頻文件url路徑
Path= Environment.getExternalStorageDirectory() + "/test.mp4"; //程序存儲的路徑,可以掃描手機內存視頻存儲到數據庫,這種視頻列表簡單自己寫.
----------------------視頻播放Activity類:
public class VideoPlay extends Activity { /** 當前視頻路徑 */ private String path; /** 當前聲音 */ private int mVolume = -1; /** 最大音量 */ private int mMaxVolume; /** 當前亮度 */ private float mBrightness = -1f; /** 手勢數目 */ private int finNum=0; private View mVolumeBrightnessLayout; private ImageView mOperationBg; private ImageView mOperationPercent; private VideoView mVideoView; private GestureDetector gestDetector; private ScaleGestureDetector scaleDetector; private ScreenBean screenBean; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); if (!LibsChecker.checkVitamioLibs(this)) return; requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_video); Intent getPath=getIntent(); path=getPath.getStringExtra("videoURL"); init(); } private void init() { mVideoView = (VideoView) findViewById(R.id.surface_view); mVolumeBrightnessLayout = findViewById(R.id.operation_volume_brightness); mOperationBg = (ImageView) findViewById(R.id.operation_bg); mOperationPercent = (ImageView) findViewById(R.id.operation_percent); mMaxVolume = LocUtil.getMaxVolume(this); gestDetector = new GestureDetector(this, new SingleGestureListener()); scaleDetector = new ScaleGestureDetector(this, new MultiGestureListener()); screenBean = LocUtil.getScreenPix(this); if (path == "") { return; } else { mVideoView.setVideoPath(path); mVideoView.setMediaController(new MediaController(this)); mVideoView.requestFocus(); mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mediaPlayer) { mediaPlayer.setPlaybackSpeed(1.0f); } }); } } /** 定時隱藏 */ private Handler mDismissHandler = new Handler() { @Override public void handleMessage(Message msg) { mVolumeBrightnessLayout.setVisibility(View.GONE); } }; @Override public boolean onTouchEvent(MotionEvent event) { // TODO Auto-generated method stub finNum=event.getPointerCount(); if (1 == finNum) { gestDetector.onTouchEvent(event); switch (event.getAction()) { case MotionEvent.ACTION_UP: endGesture(); } } else if (2 ==finNum) { scaleDetector.onTouchEvent(event); } return true; } /** 手勢結束 */ private void endGesture() { mVolume = -1; mBrightness = -1f; // 隱藏 mDismissHandler.removeMessages(0); mDismissHandler.sendEmptyMessageDelayed(0, 500); } /** * 視頻縮放 */ public void changeLayout(int size) { mVideoView.setVideoLayout(size, 0); } /** * 聲音大小 * */ public void changeVolume(float percent) { if (mVolume == -1) { mVolume = LocUtil.getCurVolume(this); if (mVolume < 0) mVolume = 0; // 顯示 mOperationBg.setImageResource(R.drawable.video_volumn_bg); mVolumeBrightnessLayout.setVisibility(View.VISIBLE); } int index = (int) (percent * mMaxVolume) + mVolume; if (index > mMaxVolume) index = mMaxVolume; else if (index < 0) index = 0; // 變更聲音 LocUtil.setCurVolume(this, index); // 變更進度條 ViewGroup.LayoutParams lp = mOperationPercent.getLayoutParams(); lp.width = findViewById(R.id.operation_full).getLayoutParams().width * index / mMaxVolume; mOperationPercent.setLayoutParams(lp); } /** * 亮度大小 * * @param percent */ public void changeBrightness(float percent) { if (mBrightness < 0) { mBrightness = getWindow().getAttributes().screenBrightness; if (mBrightness <= 0.00f) mBrightness = 0.50f; if (mBrightness < 0.01f) mBrightness = 0.01f; // 顯示 mOperationBg.setImageResource(R.drawable.video_brightness_bg); mVolumeBrightnessLayout.setVisibility(View.VISIBLE); } WindowManager.LayoutParams lpa = getWindow().getAttributes(); lpa.screenBrightness = mBrightness + percent; if (lpa.screenBrightness > 1.0f) lpa.screenBrightness = 1.0f; else if (lpa.screenBrightness < 0.01f) lpa.screenBrightness = 0.01f; getWindow().setAttributes(lpa); ViewGroup.LayoutParams lp = mOperationPercent.getLayoutParams(); lp.width = (int) (findViewById(R.id.operation_full).getLayoutParams().width * lpa.screenBrightness); mOperationPercent.setLayoutParams(lp); } /** * 單點觸屏 */ private class SingleGestureListener implements GestureDetector.OnGestureListener { @Override public boolean onDown(MotionEvent e) { // TODO Auto-generated method stub return false; } @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { // TODO Auto-generated method stub Log.d("Fling", velocityY); return false; } @Override public void onLongPress(MotionEvent e) { // TODO Auto-generated method stub } @Override public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) { // TODO Auto-generated method stub if(2==finNum){ return false; } float moldX = e1.getX(); float moldY = e1.getY(); float y = e2.getY(); if (moldX > screenBean.getsWidth() * 9.0 / 10)// 右邊滑動 changeVolume((moldY - y) / screenBean.getsHeight()); else if (moldX < screenBean.getsWidth() / 10.0)// 左邊滑動 changeBrightness((moldY - y) / screenBean.getsHeight()); return false; } @Override public void onShowPress(MotionEvent e) { // TODO Auto-generated method stub } @Override public boolean onSingleTapUp(MotionEvent e) { // TODO Auto-generated method stub return false; } } //多點手勢控制 private class MultiGestureListener implements OnScaleGestureListener { @Override public boolean onScale(ScaleGestureDetector detector) { // TODO Auto-generated method stub return false; } @Override public boolean onScaleBegin(ScaleGestureDetector detector) { // TODO Auto-generated method stub // 返回true ，才能進入onscale()函數 return true; } @Override public void onScaleEnd(ScaleGestureDetector detector) { // TODO Auto-generated method stub float oldDis = detector.getPreviousSpan(); float curDis = detector.getCurrentSpan(); if (oldDis - curDis > 50) { // 縮小 changeLayout(0); Toast.makeText(VideoPlay.this, "縮小", Toast.LENGTH_LONG).show(); } else if (oldDis - curDis < -50) { // 放大 changeLayout(1); Toast.makeText(VideoPlay.this, "放大", Toast.LENGTH_LONG).show(); } } } }
------------視頻布局activity_video(activity_main裡面沒寫省略):-------------Androidmanifest清單文件(4個注意點):<framelayout android:background="#00000000" android:id="@+id/operation_volume_brightness" android:layout_centerinparent="true" android:layout_height="wrap_content" android:layout_width="wrap_content" android:orientation="horizontal" android:padding="0dip" android:visibility="invisible"> <framelayout android:layout_gravity="bottom|center_horizontal" android:layout_height="wrap_content" android:layout_width="wrap_content" android:paddingbottom="25dip"> </framelayout></framelayout>
3.添加intent隱式意圖,對sd卡支持的文件格式添加本程序的打開方式:
4.添加視頻播放控制的Activity:
<activity
android:name=".VideoPlay"
android:screenOrientation="landscape" >
</activity>
-------庫和圖片資源路徑:
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