我尝试了一些与类似问题的解决方案,但它们似乎都不能在我的情况下工作。我的情况略有不同,因为我不是从xml中获取surfaceview,而是通过一个SurfaceView类创建它,并将其添加到FrameLayout中。我这样做是因为我希望在创建surface时使用mediaplayer。
日志记录
日志记录
07-12 11:02:28.221: E/AndroidRuntime(7055): FATAL EXCEPTION: main
07-12 11:02:28.221: E/AndroidRuntime(7055): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewGroup.addViewInner(ViewGroup.java:3337)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewGroup.addView(ViewGroup.java:3208)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewGroup.addView(ViewGroup.java:3165)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewGroup.addView(ViewGroup.java:3145)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.NoSaveStateFrameLayout.wrap(NoSaveStateFrameLayout.java:40)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:915)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.view.ViewPager.populate(ViewPager.java:1064)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.view.ViewPager.populate(ViewPager.java:911)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1432)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.View.measure(View.java:12892)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:594)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:376)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.View.measure(View.java:12892)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.View.measure(View.java:12892)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.widget.LinearLayout.measureVertical(LinearLayout.java:812)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.widget.LinearLayout.onMeasure(LinearLayout.java:553)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.View.measure(View.java:12892)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)
07-12 11:02:28.221: E/AndroidRuntime(7055): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2268)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.View.measure(View.java:12892)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1159)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2545)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.os.Handler.dispatchMessage(Handler.java:99)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.os.Looper.loop(Looper.java:137)
07-12 11:02:28.221: E/AndroidRuntime(7055): at android.app.ActivityThread.main(ActivityThread.java:4507)
07-12 11:02:28.221: E/AndroidRuntime(7055): at java.lang.reflect.Method.invokeNative(Native Method)
07-12 11:02:28.221: E/AndroidRuntime(7055): at java.lang.reflect.Method.invoke(Method.java:511)
07-12 11:02:28.221: E/AndroidRuntime(7055): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
07-12 11:02:28.221: E/AndroidRuntime(7055): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
07-12 11:02:28.221: E/AndroidRuntime(7055): at dalvik.system.NativeStart.main(Native Method)
我的代码如下:
VideoFragment.java
public class VideoFragment extends Fragment{
private static final String TAG = "Fuck this";
static String vpath;
static Context cxt;
static int pos;
static VideoFragment newInstance(int position, Cursor cursor, Context context) {
pos = position;
cursor.moveToPosition(position);
vpath = cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.DATA));
cxt = context;
VideoFragment f = new VideoFragment();
Bundle args = new Bundle();
args.putInt("position", position);
f.setArguments(args);
return f;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//mNum = getArguments() != null ? getArguments().getInt("num") : 1;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.full_image, container, false);
FrameLayout preview = (FrameLayout) v.findViewById(R.id.framelayout);
VidView vidview = new VidView(cxt);
preview.addView(vidview, pos);
return preview;
}
public class VidView extends SurfaceView implements SurfaceHolder.Callback {
MediaPlayer player;
public VidView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
player = new MediaPlayer();
player.setDisplay(holder);
try {
player.setDataSource(vpath);
player.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
if (player != null){
if ( player.isPlaying() )
player.stop();
player.reset();
player.release();
player = null;
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
}
活动和FragmentStatePagerAdapater
public class FullImageActivity extends FragmentActivity {
private static final String TAG = "MediaPlayer shit";
//MediaPlayer player;
//SurfaceView surfaceview;
SurfaceHolder surfaceHolder;
Gridview gridview = new Gridview();
int width;
int height;
Cursor cursor;
ViewPager viewpager;
PagerAdapter pageradapter;
String path;
int position;
String[] projection = { GridviewData.ROWID, GridviewData.BITMAPPATH, GridviewData.VIDEOFILEPATH};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.image_pager);
Intent i = getIntent();
position = i.getExtras().getInt("position");
path = i.getExtras().getString("videopath");
cursor = getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
gridview.mediaColumns,
MediaStore.Video.Media.DATA + " like ?",
new String[] {Environment.getExternalStorageDirectory().getPath() + "/Reelcam/TheReelcams/%"},
null);
pageradapter = new PagerAdapter(getSupportFragmentManager());
viewpager = (ViewPager) findViewById(R.id.pager);
//viewpager.setOffscreenPageLimit(1);
viewpager.setAdapter(pageradapter);
}
@Override
protected void onPause() {
super.onPause();
}
@Override
protected void onResume() {
//surfaceview.setVisibility(View.VISIBLE);
super.onResume();
}
@Override
protected void onDestroy() {
cursor.close();
super.onDestroy();
}
public class PagerAdapter extends FragmentStatePagerAdapter{
public PagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
@Override
public Fragment getItem(int position) {
Log.i(TAG, "in getitem");
return VideoFragment.newInstance(position, cursor, getApplicationContext());
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return cursor.getCount();
}
}