我有一个Fragment内一个FrameLayout。其中Fragment包含一个VideoView。如果我修改FrameLayout的左侧位置（通过调用它的layout(...)方法），FrameLayout包括其中的Fragment显示会正确地重新定位自己，除了VideoView，它有时会重新定位自己，但通常会保持不变。任何人都知道为什么它可能VideoView不会与其父级一起重新定位，以及我如何能够让它这样做？
问问题
2192 次
2 回答
0
尝试为您的 VideoView 使用此源代码。
public class CustomMediaController extends FrameLayout {
/**
* Public interface to handle FullScreenRequest. User can implement this
* interface to make the VideoPlayer Change to FullScreen. The user must
* handle show/hide of views. If the user do not add a Handler the
* FullScreen control button will be hided.
*
* @author Anis
*
*/
public interface FullScreenMediaPlayer {
/**
* Event callback when the MediaPlayer request the FullScreen.
*/
public void onFullScreenRequest();
/**
* Event callback when the MediaPlayer request the go back to normal
* size.
*/
public void onStreatchScreenRequest();
/**
* CallBackEvent when the MediaPlayer is Playing
*/
public void onPlaying();
}
private MediaPlayerControl mPlayer;
private final Context mContext;
private View mAnchor;
private View mRoot;
private View mDecor;
private ProgressBar mProgress;
private TextView mEndTime, mCurrentTime;
private boolean mShowing;
private boolean mDragging;
private static final int sDefaultTimeout = 3000;
private static final int FADE_OUT = 1;
private static final int SHOW_PROGRESS = 2;
private final boolean mUseFastForward;
private boolean mFromXml;
private boolean mListenersSet;
private View.OnClickListener mNextListener, mPrevListener;
StringBuilder mFormatBuilder;
Formatter mFormatter;
private ImageButton mPauseButton;
private ImageButton mFfwdButton;
private ImageButton mRewButton;
private ImageButton mNextButton;
private ImageButton mPrevButton;
// Add Streach colomn
private ImageButton mFullScreenButton;
private boolean isFullSreen;
private FullScreenMediaPlayer fullScreenListener;
public CustomMediaController(Context context, AttributeSet attrs) {
super(context, attrs);
mRoot = this;
mContext = context;
mUseFastForward = true;
mFromXml = true;
isFullSreen = false;
}
@Override
public void onFinishInflate() {
if (mRoot != null)
initControllerView(mRoot);
}
public CustomMediaController(Context context, boolean useFastForward) {
super(context);
mContext = context;
mUseFastForward = useFastForward;
initFloatingWindow();
}
public CustomMediaController(Context context) {
super(context);
mContext = context;
mUseFastForward = true;
initFloatingWindow();
}
private void initFloatingWindow() {
mDecor = this;
mDecor.setOnTouchListener(mTouchListener);
setFocusable(true);
setFocusableInTouchMode(true);
setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
requestFocus();
}
private final OnTouchListener mTouchListener = new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (mShowing) {
hide();
}
}
return false;
}
};
public void setMediaPlayer(MediaPlayerControl player) {
mPlayer = player;
updatePausePlay();
}
/**
* Set the view that acts as the anchor for the control view. This can for
* example be a VideoView, or your Activity's main view.
*
* @param view
* The view to which to anchor the controller when it is visible.
*/
public void setAnchorView(View view) {
mAnchor = view;
FrameLayout.LayoutParams frameParams = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
removeAllViews();
View v = makeControllerView();
addView(v, frameParams);
}
/**
* Create the view that holds the widgets that control playback. Derived
* classes can override this to create their own.
*
* @return The controller view.
* @hide This doesn't work as advertised
*/
protected View makeControllerView() {
LayoutInflater inflate = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mRoot = inflate.inflate(R.layout.media_controller, null);
initControllerView(mRoot);
return mRoot;
}
private void initControllerView(View v) {
mPauseButton = (ImageButton) v.findViewById(R.id.pause);
if (mPauseButton != null) {
mPauseButton.requestFocus();
mPauseButton.setOnClickListener(mPauseListener);
}
mFfwdButton = (ImageButton) v.findViewById(R.id.ffwd);
if (mFfwdButton != null) {
mFfwdButton.setOnClickListener(mFfwdListener);
if (!mFromXml) {
mFfwdButton.setVisibility(mUseFastForward ? View.VISIBLE : View.GONE);
}
}
mRewButton = (ImageButton) v.findViewById(R.id.rew);
if (mRewButton != null) {
mRewButton.setOnClickListener(mRewListener);
if (!mFromXml) {
mRewButton.setVisibility(mUseFastForward ? View.VISIBLE : View.GONE);
}
}
// By default these are hidden. They will be enabled when
// setPrevNextListeners() is called
mNextButton = (ImageButton) v.findViewById(R.id.next);
if (mNextButton != null && !mFromXml && !mListenersSet) {
mNextButton.setVisibility(View.GONE);
}
mPrevButton = (ImageButton) v.findViewById(R.id.prev);
if (mPrevButton != null && !mFromXml && !mListenersSet) {
mPrevButton.setVisibility(View.GONE);
}
mProgress = (ProgressBar) v.findViewById(R.id.mediacontroller_progress);
if (mProgress != null) {
if (mProgress instanceof SeekBar) {
SeekBar seeker = (SeekBar) mProgress;
seeker.setOnSeekBarChangeListener(mSeekListener);
}
mProgress.setMax(1000);
}
mEndTime = (TextView) v.findViewById(R.id.time);
mCurrentTime = (TextView) v.findViewById(R.id.time_current);
mFormatBuilder = new StringBuilder();
mFormatter = new Formatter(mFormatBuilder, Locale.getDefault());
mFullScreenButton = (ImageButton) v.findViewById(R.id.video_fullscreen);
installFullScreenListener();
installPrevNextListeners();
}
/**
* Show the controller on screen. It will go away automatically after 3
* seconds of inactivity.
*/
public void show() {
show(sDefaultTimeout);
}
/**
* Show the controller on screen. It will go away automatically after
* 'timeout' milliseconds of inactivity.
*
* @param timeout
* The timeout in milliseconds. Use 0 to show the controller
* until hide() is called.
*/
public void show(int timeout) {
if (!mShowing && mAnchor != null) {
setProgress();
addToFrameAncherLayout();
mShowing = true;
}
updatePausePlay();
// cause the progress bar to be updated even if mShowing
// was already true. This happens, for example, if we're
// paused with the progress bar showing the user hits play.
mHandler.sendEmptyMessage(SHOW_PROGRESS);
Message msg = mHandler.obtainMessage(FADE_OUT);
if (timeout != 0) {
mHandler.removeMessages(FADE_OUT);
mHandler.sendMessageDelayed(msg, timeout);
}
}
private void addToFrameAncherLayout() {
if ((mDecor != null) && (mDecor.getParent() == null)) {
if (mAnchor instanceof FrameLayout) {
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT,
FrameLayout.LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.BOTTOM;
((FrameLayout) mAnchor).addView(mDecor, params);
mDecor.setVisibility(View.VISIBLE);
} else {
// int[] anchorpos = new int[2];
// mAnchor.getLocationOnScreen(anchorpos);
//
// WindowManager.LayoutParams p = new
// WindowManager.LayoutParams();
// p.gravity = Gravity.TOP;
// p.width = mAnchor.getWidth();
// p.height = LayoutParams.WRAP_CONTENT;
// p.x = anchorpos[0];
// p.y = anchorpos[1] + mAnchor.getHeight() -
// mDecor.getHeight();
// p.format = PixelFormat.TRANSLUCENT;
// p.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL;
// p.flags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
// p.token = null;
// p.windowAnimations = 0; //
// android.R.style.DropDownAnimationDown;
// mWindowManager.addView(mDecor, p);
// Logger.e("Ancher is not a Frame Layout usinf a Blocking Window");
}
}
mDecor.setVisibility(View.VISIBLE);
}
public boolean isShowing() {
return mShowing;
}
/**
* Remove the controller from the screen.
*/
public void hide() {
if (mAnchor == null)
return;
if (mShowing) {
try {
mHandler.removeMessages(SHOW_PROGRESS);
// TODO must be a New View
if (mDecor != null) {
if (mAnchor instanceof FrameLayout) {
// ((FrameLayout) mAnchor).removeView(mDecor);
mDecor.setVisibility(View.GONE);
} else {
// mWindowManager.removeView(mRoot);
}
}
} catch (IllegalArgumentException ex) {
Log.w("MediaController", "already removed");
}
mShowing = false;
}
}
static class ProgressHandler extends Handler {
WeakReference<CustomMediaController> mediaControllerReference;
ProgressHandler(CustomMediaController mediaController) {
mediaControllerReference = new WeakReference<CustomMediaController>(mediaController);
}
@Override
public void handleMessage(Message msg) {
CustomMediaController mediaController = mediaControllerReference.get();
if (mediaController != null) {
int pos;
switch (msg.what) {
case FADE_OUT:
mediaController.hide();
break;
case SHOW_PROGRESS:
pos = mediaController.setProgress();
if (!mediaController.mDragging && mediaController.mShowing
&& mediaController.mPlayer.isPlaying()) {
msg = obtainMessage(SHOW_PROGRESS);
sendMessageDelayed(msg, 1000 - (pos % 1000));
}
break;
}
}
}
}
private final Handler mHandler = new ProgressHandler(this);
private String stringForTime(int timeMs) {
int totalSeconds = timeMs / 1000;
int seconds = totalSeconds % 60;
int minutes = (totalSeconds / 60) % 60;
int hours = totalSeconds / 3600;
mFormatBuilder.setLength(0);
if (hours > 0) {
return mFormatter.format("%d:%02d:%02d", hours, minutes, seconds).toString();
} else {
return mFormatter.format("%02d:%02d", minutes, seconds).toString();
}
}
private int setProgress() {
if (mPlayer == null || mDragging) {
return 0;
}
int position = mPlayer.getCurrentPosition();
int duration = mPlayer.getDuration();
if (mProgress != null) {
if (duration > 0) {
// use long to avoid overflow
long pos = 1000L * position / duration;
mProgress.setProgress((int) pos);
}
int percent = mPlayer.getBufferPercentage();
mProgress.setSecondaryProgress(percent * 10);
}
if (mEndTime != null)
mEndTime.setText(stringForTime(duration));
if (mCurrentTime != null)
mCurrentTime.setText(stringForTime(position));
return position;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
show(sDefaultTimeout);
return true;
}
@Override
public boolean onTrackballEvent(MotionEvent ev) {
show(sDefaultTimeout);
return false;
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
if (event.getRepeatCount() == 0
&& (keyCode == KeyEvent.KEYCODE_HEADSETHOOK || keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE || keyCode == KeyEvent.KEYCODE_SPACE)) {
doPauseResume();
show(sDefaultTimeout);
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP) {
if (mPlayer.isPlaying()) {
mPlayer.pause();
updatePausePlay();
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN || keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
// don't show the controls for volume adjustment
return super.dispatchKeyEvent(event);
} else if (keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_MENU) {
hide();
return true;
} else {
show(sDefaultTimeout);
}
return super.dispatchKeyEvent(event);
}
private final View.OnClickListener mPauseListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
doPauseResume();
show(sDefaultTimeout);
}
};
private void updatePausePlay() {
if (mRoot == null)
return;
ImageButton button = (ImageButton) mRoot.findViewById(R.id.pause);
if (button == null)
return;
if (mPlayer.isPlaying()) {
button.setImageResource(R.drawable.ic_media_pause);
} else {
button.setImageResource(R.drawable.ic_media_play);
}
}
private void doPauseResume() {
if (mPlayer.isPlaying()) {
mPlayer.pause();
} else {
mPlayer.start();
}
updatePausePlay();
}
private final OnSeekBarChangeListener mSeekListener = new OnSeekBarChangeListener() {
long duration;
@Override
public void onStartTrackingTouch(SeekBar bar) {
show(3600000);
duration = mPlayer.getDuration();
}
@Override
public void onProgressChanged(SeekBar bar, int progress,
boolean fromtouch) {
if (fromtouch) {
mDragging = true;
duration = mPlayer.getDuration();
long newposition = (duration * progress) / 1000L;
mPlayer.seekTo((int) newposition);
if (mCurrentTime != null)
mCurrentTime
.setText(stringForTime((int) newposition));
} else {
if ((fullScreenListener != null) && (progress > 0)) {
fullScreenListener.onPlaying();
}
}
}
@Override
public void onStopTrackingTouch(SeekBar bar) {
mDragging = false;
setProgress();
updatePausePlay();
show(sDefaultTimeout);
}
};
@Override
public void setEnabled(boolean enabled) {
if (mPauseButton != null) {
mPauseButton.setEnabled(enabled);
}
if (mFfwdButton != null) {
mFfwdButton.setEnabled(enabled);
}
if (mRewButton != null) {
mRewButton.setEnabled(enabled);
}
if (mNextButton != null) {
mNextButton.setEnabled(enabled && mNextListener != null);
}
if (mPrevButton != null) {
mPrevButton.setEnabled(enabled && mPrevListener != null);
}
if (mProgress != null) {
mProgress.setEnabled(enabled);
}
super.setEnabled(enabled);
}
private final View.OnClickListener mRewListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
int pos = mPlayer.getCurrentPosition();
pos -= 5000; // milliseconds
mPlayer.seekTo(pos);
setProgress();
show(sDefaultTimeout);
}
};
private final View.OnClickListener mFfwdListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
int pos = mPlayer.getCurrentPosition();
pos += 15000; // milliseconds
mPlayer.seekTo(pos);
setProgress();
show(sDefaultTimeout);
}
};
private void installPrevNextListeners() {
if (mNextButton != null) {
mNextButton.setOnClickListener(mNextListener);
mNextButton.setEnabled(mNextListener != null);
}
if (mPrevButton != null) {
mPrevButton.setOnClickListener(mPrevListener);
mPrevButton.setEnabled(mPrevListener != null);
}
}
private void installFullScreenListener() {
if (mFullScreenButton != null) {
mFullScreenButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View aView) {
Preconditions.checkNotNull(fullScreenListener,
"IllegalStateExeption, FullScreen Button pressed with a nullable Listener");
if (isFullSreen) {
// send the request to handle normal size;
fullScreenListener.onStreatchScreenRequest();
isFullSreen = false;
updateFullScreenButton();
} else {
// Send request to go FullScreen
fullScreenListener.onFullScreenRequest();
isFullSreen = true;
updateFullScreenButton();
}
}
});
if (fullScreenListener == null) {
mFullScreenButton.setVisibility(View.GONE);
} else {
mFullScreenButton.setVisibility(View.VISIBLE);
}
}
}
/**
* Toggle the Full Screen Buttons
*/
private void updateFullScreenButton() {
if (isFullSreen) {
mFullScreenButton.setImageResource(R.drawable.windowmin);
} else {
mFullScreenButton.setImageResource(R.drawable.windowmax);
}
}
public void setPrevNextListeners(View.OnClickListener next, View.OnClickListener prev) {
mNextListener = next;
mPrevListener = prev;
mListenersSet = true;
if (mRoot != null) {
installPrevNextListeners();
if (mNextButton != null && !mFromXml) {
mNextButton.setVisibility(View.VISIBLE);
}
if (mPrevButton != null && !mFromXml) {
mPrevButton.setVisibility(View.VISIBLE);
}
}
}
public MediaPlayerControl getmPlayer() {
return mPlayer;
}
public void setmPlayer(MediaPlayerControl mPlayer) {
this.mPlayer = mPlayer;
}
@Override
public void dispatchWindowVisibilityChanged(int visibility) {
hide();
}
/**
* @return the fullScreenListener or null if any Listener is registred.
*/
public FullScreenMediaPlayer getFullScreenListener() {
return fullScreenListener;
}
/**
* @param aFullScreenListener
* the fullScreenListener.
*/
public void registerFullScreenListener(FullScreenMediaPlayer aFullScreenListener) {
Preconditions.checkNotNull(aFullScreenListener, "FullScreenListener cannot be null ");
fullScreenListener = aFullScreenListener;
installFullScreenListener();
}
public void removeFullScreenListerer() {
fullScreenListener = null;
installFullScreenListener();
}
/*
* (non-Javadoc)
*
* @see android.view.View#onDetachedFromWindow()
*/
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
hide();
}
}
于 2012-10-02T15:18:39.363 回答
0
最后放弃了。VideoView重新定位 a或任何解决方法似乎都不是一个简单的解决方法。我现在正在做的是在新活动中全屏播放视频。
于 2012-11-01T13:58:41.683 回答