Android 获取在videoview下播放的视频的进度时间?
我需要获得在“VideoView”中播放的视频的进度时间(即进度条左侧显示的时间) 任何帮助都将不胜感激。Android 获取在videoview下播放的视频的进度时间?,android,Android,我需要获得在“VideoView”中播放的视频的进度时间(即进度条左侧显示的时间) 任何帮助都将不胜感激。 谢谢。您可以使用getCurrentPosition()和getDuration()计算进度。您可以通过mVideoView.getDuration()获得视频的持续时间,最初将进度条设置为0,然后通过mVideoView.getCurrentPosition()获得视频的当前进度并根据当前视频进度百分比(%)将进度条状态增加(当前*100/持续时间)。我使用AsyncTask检验了这个完
谢谢。您可以使用
getCurrentPosition()
和getDuration()
计算进度。您可以通过mVideoView.getDuration()
获得视频的持续时间,最初将进度条设置为0,然后通过mVideoView.getCurrentPosition()获得视频的当前进度
并根据当前视频进度百分比(%)将进度条状态增加(当前*100/持续时间)
。我使用AsyncTask
检验了这个完整的示例
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<VideoView android:id="@+id/my_Video_View"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<ProgressBar android:layout_alignParentBottom="true"
style="@android:style/Widget.ProgressBar.Horizontal"
android:layout_width="fill_parent"
android:layout_height="10dp"
android:id="@+id/Progressbar"/>
</RelativeLayout>
VideoPlayActivity.java
public class VideoPlayActivity extends Activity {
ProgressBar mProgressBar;
VideoView mVideoView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
String path = Environment.getExternalStorageDirectory().toString();
String filename = "/hr.3gp";
mProgressBar = (ProgressBar) findViewById(R.id.Progressbar);
mProgressBar.setProgress(0);
mProgressBar.setMax(100);
mVideoView = (VideoView) findViewById(R.id.my_Video_View);
mVideoView.setVideoURI(Uri.parse(path+filename));
new MyAsync().execute();
}
private class MyAsync extends AsyncTask<Void, Integer, Void>
{
int duration = 0;
int current = 0;
@Override
protected Void doInBackground(Void... params) {
mVideoView.start();
mVideoView.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
duration = mVideoView.getDuration();
}
});
do {
current = mVideoView.getCurrentPosition();
System.out.println("duration - " + duration + " current- "
+ current);
try {
publishProgress((int) (current * 100 / duration));
if(mProgressBar.getProgress() >= 100){
break;
}
} catch (Exception e) {
}
} while (mProgressBar.getProgress() <= 100);
return null;
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
System.out.println(values[0]);
mProgressBar.setProgress(values[0]);
}
}
}
公共类VideoPlayActivity扩展活动{
ProgressBar-mProgressBar;
视频视图;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
字符串路径=Environment.getExternalStorageDirectory().toString();
字符串filename=“/hr.3gp”;
mProgressBar=(ProgressBar)findViewById(R.id.ProgressBar);
mProgressBar.setProgress(0);
最大设置压力(100);
mVideoView=(VideoView)findviewbyd(R.id.my\u Video\u View);
mVideoView.setVideoURI(Uri.parse(path+filename));
新建MyAsync().execute();
}
私有类MyAsync扩展了AsyncTask
{
int持续时间=0;
int电流=0;
@凌驾
受保护的Void doInBackground(Void…参数){
mVideoView.start();
mVideoView.setOnPreparedListener(新的OnPreparedListener(){
已准备好公开作废(MediaPlayer mp){
duration=mVideoView.getDuration();
}
});
做{
current=mVideoView.getCurrentPosition();
系统输出打印项次(“持续时间-”+持续时间+“当前-”
+电流);
试一试{
出版进度(整数)(当前*100/时长);
如果(mProgressBar.getProgress()>=100){
打破
}
}捕获(例外e){
}
}而(mProgressBar.getProgress()您可以使用线程来实现此目的,如下所示:
videoView.start();
videoView.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
running = true;
final int duration = videoView.getDuration();
new Thread(new Runnable() {
public void run() {
do{
textView.post(new Runnable() {
public void run() {
int time = (duration - videoView.getCurrentPosition())/1000;
textView.setText(time+"");
}
});
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
if(!running) break;
}
while(videoView.getCurrentPosition()<duration);
}
}).start();
}
});
videoView.start();
videoView.setOnPreparedListener(新的OnPreparedListener(){
已准备好公开作废(MediaPlayer mp){
运行=真;
final int duration=videoView.getDuration();
新线程(newrunnable()){
public void run(){
做{
textView.post(新的Runnable(){
公开募捐{
int time=(duration-videoView.getCurrentPosition())/1000;
textView.setText(时间+“”);
}
});
试一试{
睡眠(500);
}捕获(中断异常e){
e、 printStackTrace();
}
如果(!运行)中断;
}
而(videoView.getCurrentPosition()我就是这样完成的
private void playVideo() {
setViewNotVisibility();
final String videoSource = "android.resource://" + getPackageName() + File.separator + R.raw.moviiegood;
videoView.setKeepScreenOn(true);
videoView.setVideoURI(Uri.parse(videoSource));
videoView.setMediaController(null);
videoView.setOnCompletionListener(myVideoViewCompletionListener);
videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
startVideo();
setDuration();
timerCounter();
}
}
);
}
private Timer timer;
private void timerCounter(){
timer = new Timer();
TimerTask task = new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
updateUI();
}
});
}
};
timer.schedule(task, 0, 1000);
}
private int duration = 0;
private void setDuration(){
duration = videoView.getDuration();
}
private void updateUI(){
if (pbVideoView.getProgress() >= 100) {
timer.cancel();
}
int current = videoView.getCurrentPosition();
int progress = current * 100 / duration;
pbVideoView.setProgress(progress);
}
如果您有问题,请随时提问。您真的可以在doInBackground
中调用mVideoView.start();
吗?没有错误的线程异常?hi-Lalit。如果用户退出或关闭视频视图会发生什么?如何防止此异步任务无限执行?@android用户您可以调用取消()必须从UI线程调用AsyncTaskmethodsetOnPreparedListener
上的方法。所有后台任务代码都应该从UI线程调用,但是,何时调用这些方法?因为我需要每秒跟踪一次。@narendra先生,您可以使用timer或thread sleep se参考上面Nolesh和Aleksey Timoshchenko的答案t到1000毫秒。我在处理程序的帮助下实现了这一点。这导致textview中出现泄漏