视频播放完毕后启动 Activity
在我的 Android 应用程序中，当我正在播放的视频结束时，我试图简单地返回到我的主要活动。我尝试了很多解决方法，但找不到从视频 onCompletionListener 调用 StartActivity 的方法 - 我收到“无法从 Activity 类型对非静态方法 startActivity(Intent) 进行静态引用”错误。
我尝试从 videoView 之前的 Activity 获取上下文，并将其传递给 Intent/startActivity。这允许应用程序编译，但随后我遇到了运行时异常。
这是现在的代码，它出现“无法进行静态引用”错误 - 任何帮助将不胜感激！
public class Videoscreen extends Activity{
public static VideoView myVideoView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.videoplay);
myVideoView = (VideoView) findViewById(R.id.main_videoview);
System.out.println("playing video oncreate");
playVideo();
}
public static void playVideo(){
// video finish listener
myVideoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer vmp) {
Intent intent = new Intent();
intent.setClass(Videoscreen.this, Game.class);
Videoscreen.startActivity(intent);
}
});
String low_word = SpellingView.get_low_word();
Uri bubblesUri = Uri.parse("android.resource://org.lalloinc.ilovetrucks/raw/"+ low_word + "_vid");
myVideoView.setVideoURI(bubblesUri);
myVideoView.start();
}
}
In my Android app, I am trying to simply go back to my main Activity once a video that I am playing ends. I have tried many workarounds, but I can't find a way to call StartActivity from the video onCompletionListener - I am getting the "cannot make a static reference to the non-static method startActivity(Intent) from the type Activity" error.
I tried getting a context from the Activity that preceded the videoView, and passing that to the intent/startActivity. That allowed the app to compile, but then I got a runtime exception.
Here is the code as it stands now, which gets the "cannot make a static reference" error - any help would be appreciated!
public class Videoscreen extends Activity{
public static VideoView myVideoView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.videoplay);
myVideoView = (VideoView) findViewById(R.id.main_videoview);
System.out.println("playing video oncreate");
playVideo();
}
public static void playVideo(){
// video finish listener
myVideoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer vmp) {
Intent intent = new Intent();
intent.setClass(Videoscreen.this, Game.class);
Videoscreen.startActivity(intent);
}
});
String low_word = SpellingView.get_low_word();
Uri bubblesUri = Uri.parse("android.resource://org.lalloinc.ilovetrucks/raw/"+ low_word + "_vid");
myVideoView.setVideoURI(bubblesUri);
myVideoView.start();
}
}
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如果您知道视频的时间，那么您可以尝试：
如果您不知道时间，那么您得到的时间为：
然后在线程睡眠时，您只需输入这个整数。
If you know the time of the video then you try:
if you don't know the time then you get the time as:
And then at thread sleep you just put this integer.
如果您从要稍后返回的 Activity 启动了 Video Activity，只需在视频结束时调用 finish() 即可完成任务。
再次启动主 Activity 会创建一个不一定需要的 Activity 堆栈。
If you started the Video Activity from the Activity you would like to go back to later, just calling finish() at the end of the video will do the job.
Starting the main Activity again creates a not necessarily wanted stack of activities.