我的ProgressDialog不会显示。在我的程序中，用户从弹出菜单中选择比特率，内容在线获取并显示在VideoView中。
然而，我得到的只是一个黑屏，而视频加载和progressDialog在视频最终加载之前的瞬间显示一瞬间（或更少）。
private void showPopupMenu(View v){
popupMenu = new PopupMenu(VideoPlayer.this, v);
if(bitRates != null){
int menuItem = 0;
int index = bitRates.size()-1;
popupMenu.getMenu().add(0,menuItem, 0,"Hide menu");
for(int i=1;i<bitRates.size();i++){
menuItem = i;
popupMenu.getMenu().add(0,menuItem, 0,"Quality"+" : "+bitrateCheck(bitRates.get(index))).setCheckable(true);
Log.i("ITEM",qualityList.get(i)+" : "+bitRates.get(i));
index--;
}
popupMenu.getMenu().add(0,menuItem++, 0,"Catalog");
}
popupMenu.show();
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(final MenuItem item) {
p_dialog = ProgressDialog.show(VideoPlayer.this, "", "Loading...");
//get current position of video to seek to
final int position = mVideoView.getCurrentPosition();
new Thread() {
public void run() {
try{
runOnUiThread(new Runnable() {
public void run() {
if(item.getTitle().equals("Catalog")){
backButtonVideo(new View(VideoPlayer.this));
}
else if(item.getTitle().equals("Hide menu")){
popupMenu.dismiss();
mVideoView.start();
}
else{
play(streamUrls.get(item.getItemId()),position);
}
}
});
}
catch (Exception e) {
Log.e("tag", e.getMessage());
}
p_dialog.dismiss();
}
}.start();
return true;
}
});
}
public void play(String _videoUri, int position){
Log.i(TAG,"URI is : "+Uri.parse(_videoUri).toString());
//View view = new View()
MediaController mc = new MediaController(VideoPlayer.this);
mVideoView.setMediaController(mc);
mVideoView.setVideoURI(Uri.parse(_videoUri));
mVideoView.requestFocus();
mVideoView.seekTo(position);
mVideoView.start();
}
mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
// TODO Auto-generated method stub
mVideoView.start();
}
});
/////////////////////////////////////////////// ////////////////////////////////////
popupMenu.show();
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(final MenuItem item) {
//get current position of video to seek to
final int position = mVideoView.getCurrentPosition();
p_dialog = ProgressDialog.show(VideoPlayer.this, "", "Loading...");
try{
if(item.getTitle().equals("Catalog")){
backButtonVideo(new View(VideoPlayer.this));
}
else if(item.getTitle().equals("Hide menu")){
popupMenu.dismiss();
mVideoView.start();
}
else{
play(streamUrls.get(item.getItemId()),position);
}
}
catch (Exception e) {Log.e("tag", e.getMessage());}
return true;
}
});
}
public void play(String _videoUri, int position){
Log.i(TAG,"URI is : "+Uri.parse(_videoUri).toString());
MediaController mc = new MediaController(VideoPlayer.this);
mVideoView.setMediaController(mc);
mVideoView.setVideoURI(Uri.parse(_videoUri));
mVideoView.requestFocus();
mVideoView.seekTo(position);
p_dialog.dismiss();
}
答案 0 :(得分：1)
首先，创建一个单独的线程只是为了在UI线程上运行某些东西是没有意义的（为什么你首先创建线程呢？）。
应该已经由UI线程调用 onMenuItemClick（UI元素的回调通常会这样做）。
您应该注意的是MediaPlayer.OnPreparedListener使用VideoView.setOnPreparedListener。这将告诉您视频何时可以播放。
答案 1 :(得分：0)
我根据Che Jami进行了一些重新安排并让它起作用。感谢
mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
// TODO Auto-generated method stub
p_dialog.dismiss();
mVideoView.start();
}
});
/////////////////////////////////////////////// /////////////////////////////////
popupMenu.show();
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(final MenuItem item) {
//get current position of video to seek to
final int position = mVideoView.getCurrentPosition();
try{
if(item.getTitle().equals("Catalog")){
backButtonVideo(new View(VideoPlayer.this));
}
else if(item.getTitle().equals("Hide menu")){
popupMenu.dismiss();
mVideoView.start();
}
else{
p_dialog = ProgressDialog.show(VideoPlayer.this, "", "Loading new stream");
play(streamUrls.get(item.getItemId()),position);
}
}
catch (Exception e) {Log.e("tag", e.getMessage());}
return true;
}
});
}
public void play(String _videoUri, int position){
Log.i(TAG,"URI is : "+Uri.parse(_videoUri).toString());
MediaController mc = new MediaController(VideoPlayer.this);
mVideoView.setMediaController(mc);
mVideoView.setVideoURI(Uri.parse(_videoUri));
mVideoView.requestFocus();
mVideoView.seekTo(position);
}
答案 2 :(得分：0)
我有同样的问题...我已经尝试过你的解决方案，但我的进度被阻止......一切都停止了...视频没有显示......似乎onPrepareListener从未被调用过.. 。有任何想法吗？此外，似乎setVideoURI从未传递过代码......：/
我有不同版本的代码...带有线程，带有runOnUI，带有AsyncTask，没有所有内容......似乎没有任何东西可以完全正常工作。总是缺少一些东西。
编辑：
我有onClickListener
中的函数这是一个像你一样没有任何线程的代码：
版本1：视频在几秒钟后启动，进度对话框只显示视频启动时刻。从一开始就没有显示进展。
public void loadService(final int mode) {
//Version 1
// Show dialog
loadService = new ProgressDialog(activity);
loadService.setTitle("Loading service");
loadService.setMessage("Please wait...");
loadService.setCancelable(false);
loadService.show();
// Hide progress dialog after 15 seconds if nothing happens
DuoTVGuiHandler.progressBarProttection(loadService, 15);
// Setup video view for playback
if (mode == STAND_ALONE) {
setupVideoView(((DuoTVGuiActivity) activity).getVideoPlayback());
}
if (mode == WIDGET_MODE) {
setupVideoView(((MainActivity) activity).getVideoViewWidgetMode());
}
}
/** Setup video view for playback */
public void setupVideoView(final VideoView videoView) {
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
loadService.dismiss();
videoView.start();
}
});
videoView.setVideoURI(Uri.parse(channels.get(index).getFilePath()));
}
第2版带有线程和处理程序...进度对话框显示...它正在旋转...视频显示一秒钟......应用程序崩溃...错误的UI异常......但是当我移动时runOnUiThread中的setVideoURI ...进程永远保持...并且setOnVideoURI永远不会完成。
public void loadService(final int mode) {
// //////////////////////////////
// Version 2
// //////////////////////////////
// Show dialog
loadService = new ProgressDialog(activity);
loadService.setTitle("Loading service");
loadService.setMessage("Please wait...");
loadService.setCancelable(false);
loadService.show();
final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
loadService.dismiss();
super.handleMessage(msg);
}
};
Thread loadVideoPath = new Thread(new Runnable() {
public void run() {
if (mode == STAND_ALONE) {
((DuoTVGuiActivity) activity)
.getVideoPlayback()
.setVideoURI(
Uri.parse(channels.get(index).getFilePath()));
}
if (mode == WIDGET_MODE) {
((MainActivity) activity)
.getVideoViewWidgetMode()
.setVideoURI(
Uri.parse(channels.get(index).getFilePath()));
}
handler.sendEmptyMessage(0);
}
});
loadVideoPath.start();
}
希望你有一些想法...我已经失去了几天......并且无法看到解决方案......对于这个非常基本的事情......它让我发疯：）