我有一个全屏视频视图，并且想在按下某个键时触发一个 popupMenu。日志显示关键事件被捕获，但弹出视图不会显示。任何想法为什么？
@Override
public boolean onKeyDown(int keyCode , KeyEvent event ){
switch(keyCode){
case KeyEvent.KEYCODE_DPAD_CENTER:
Log.i("POP uP MENU","Show");
mVideoView.pause();
showPopupMenu(new View(VideoPlayer.this));
case KeyEvent.KEYCODE_D:
popupMenu.dismiss();
}
return true;
}
private void showPopupMenu(View v){
popupMenu = new PopupMenu(VideoPlayer.this, v);
if(bitRates != null){
for(int i=0;i<bitRates.size();i++){
int menuItem = i;
popupMenu.getMenu().add(0,menuItem, 0,qualityList.get(i)+" : "+bitRates.get(i));
}
}
popupMenu.show();
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(final MenuItem item) {
progressDialog = ProgressDialog.show(VideoPlayer.this, "", "Loading video...");
final int position = mVideoView.getCurrentPosition();
new Thread() {
public void run() {
try{
runOnUiThread(new Runnable() {
public void run() {
play(streamUrls.get(item.getItemId()),position);
}
});
}
catch (Exception e)
{
Log.e("tag", e.getMessage());
}
progressDialog.dismiss();
}
}.start();
return true;
}
});
}