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Я пытаюсь захватить видео в имени папки создания приложения и SD-карте. Когда я нажимаю камеру она захватывает видео, но когда я нажимаю на кнопку сохранить мое приложение падаетNull указатель после захвата видео с помощью камеры Android
public class MainActivity extends AppCompatActivity {
private Uri fileUri;
public static final int MEDIA_TYPE_VIDEO = 2;
private static final int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 200;
public static MainActivity ActivityContext =null;
public static TextView output;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActivityContext = this;
Button buttonRecording = (Button)findViewById(R.id.recording);
output = (TextView)findViewById(R.id.output);
buttonRecording.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
// create new Intentwith with Standard Intent action that can be
// sent to have the camera application capture an video and return it.
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
// create a file to save the video
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
// set the image file name
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// set the video image quality to high
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
// start the Video Capture Intent
startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);
}
});
}
/* Checks if external storage is available for read and write */
public boolean isExternalStorageWritable() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
return true;
}
return false;
}
/* Checks if external storage is available to at least read */
public boolean isExternalStorageReadable() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state) ||
Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
return true;
}
return false;
}
/** Create a file Uri for saving an image or video */
private static Uri getOutputMediaFileUri(int type){
return Uri.fromFile(getOutputMediaFile(type));
}
/** Create a File for saving an image or video */
private static File getOutputMediaFile(int type){
// Check that the SDCard is mounted
File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES), "MyCameraVideo");
// Create the storage directory(MyCameraVideo) if it does not exist
if (! mediaStorageDir.exists()){
if (! mediaStorageDir.mkdirs()){
output.setText("Failed to create directory MyCameraVideo.");
Toast.makeText(ActivityContext, "Failed to create directory MyCameraVideo.",
Toast.LENGTH_LONG).show();
Log.d("MyCameraVideo", "Failed to create directory MyCameraVideo.");
return null;
}
}
// Create a media file name
// For unique file name appending current timeStamp with file name
java.util.Date date= new java.util.Date();
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(date.getTime());
File mediaFile;
if(type == MEDIA_TYPE_VIDEO) {
// For unique video file name appending current timeStamp with file name
mediaFile = new File(mediaStorageDir.getPath() + File.separator +
"VID_"+ timeStamp + ".mp4");
} else {
return null;
}
return mediaFile;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// After camera screen this code will excuted
if (requestCode == CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
output.setText("Video File : " +data.getData());
// Video captured and saved to fileUri specified in the Intent
// Toast.makeText(this, "Video saved to:
// " +
// data.getData(), Toast.LENGTH_LONG).show();
} else if (resultCode == RESULT_CANCELED) {
output.setText("User cancelled the video capture.");
// User cancelled the video capture
Toast.makeText(this, "User cancelled the video capture.",
Toast.LENGTH_LONG).show();
} else {
output.setText("Video capture failed.");
// Video capture failed, advise user
Toast.makeText(this, "Video capture failed.",
Toast.LENGTH_LONG).show();
}
}
}
}
Вот моя ошибка журнала кошки:
java.lang.NullPointerException: Attempt to invoke virtual method 'android.net.Uri android.content.Intent.getData()' on a null object reference