所以你需要一個回調函數,一旦切割完成就會調用它。以便您可以開始共享意圖。
要實現這種行爲,您可以考慮使用類似這樣的接口。
public interface CuttingCompleted {
void onCuttingCompleted(String[] vidUris);
}
現在來AsyncTask
做在後臺線程切割,當它完成時,結果傳遞給回調函數的代碼流的進一步執行。
public class CuttingVideoAsyncTask extends AsyncTask<Void, Void, String[]> {
private final Context mContext;
public CuttingCompleted mCuttingCompleted;
CuttingVideoAsyncTask(Context context, CuttingCompleted listener) {
// Pass extra parameters as you need for cutting the video
this.mContext = context;
this.mCuttingCompleted = listener;
}
@Override
protected String[] doInBackground(Void... params) {
// This is just an example showing here to run the process of cutting.
String[] complexCommand = {"-i", yourRealPath, "-ss", "" + startMs, "-t", ""+leng , dest.getAbsolutePath()};
execFFmpegBinary(complexCommand);
return complexCommand;
}
@Override
protected void onPostExecute(String[] vidUris) {
// Pass the result to the calling Activity
mCuttingCompleted.onCuttingCompleted(vidUris);
}
@Override
protected void onCancelled() {
mCuttingCompleted.onCuttingCompleted(null);
}
}
現在從您的Activity
你需要這樣,當切割過程全部完成您的分享意願開始實現的接口。
public class YourActivity extends Activity implements CuttingCompleted {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// ... Other code
new CuttingVideoAsyncTask(this, this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
@Override
public void onCuttingCompleted(String[] vidUris) {
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND_MULTIPLE);
shareIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, vidUris);
shareIntent.setType("video/*");
startActivity(shareIntent);
}
}
嘗試使用AsyncTask,但活動在切割被調用後立即關閉。給D/AndroidRuntime:關閉虛擬機I /進程:發送信號。 PID:2346 SIG:9 – abhinavtk