某些设备无法播放刚刚录制的视频/音频。收到"抱歉，无法播放视频"，但在图库中播放了相同的视频。刚刚录制的视频/音频无法在某些设备上播放。收到"抱歉，无法播放视频"，但在图库中播放了相同的视频。下面是我的代码
public class CaptureImageActivity extends Activity {
// Activity request codes
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;
public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;
// directory name to store captured images and videos
private static final String IMAGE_DIRECTORY_NAME = "ICS Camera";
private Uri fileUri; // file url to store image/video
private ImageView imgPreview;
private VideoView videoPreview;
private TextView cancel, send;
private Intent intent1;
@Override
public void onBackPressed() {
super.onBackPressed();
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
HomeActivity.myempid = 1;
startActivity(intent);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_capture_image);
imgPreview = (ImageView) findViewById(R.id.imgPreview);
videoPreview = (VideoView) findViewById(R.id.videoPreview);
cancel = (TextView) findViewById(R.id.cancel);
send = (TextView) findViewById(R.id.send);
int mode = getIntent().getIntExtra(
ApplicationConstants.IntentKeys.KEY_MODE, 0);
try {
if (HomeActivity.camera != null) {
HomeActivity.camera.release();
HomeActivity.camera = null;
}
} catch (Exception e) {
e.printStackTrace();
}
if (mode == 0)
captureImage();
else
recordVideo();
/*
* Capture image button click event
*/
cancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
startActivity(intent);
HomeActivity.myempid = 1;
CaptureImageActivity.this.finish();
}
});
/*
* Record video button click event //
*/
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent picMessageIntent = new Intent(
android.content.Intent.ACTION_SEND);
picMessageIntent.setType("image/jpeg");
File downloadedPic = new File(fileUri.getPath());
System.out.println("PATH " + fileUri.getPath());
picMessageIntent.putExtra(Intent.EXTRA_STREAM,
Uri.fromFile(downloadedPic));
startActivity(picMessageIntent);
// CaptureImageActivity.this.finish();
}
});
// Checking camera availability
if (!isDeviceSupportCamera()) {
Toast.makeText(getApplicationContext(),
"Sorry! Your device doesn't support camera",
Toast.LENGTH_LONG).show();
// will close the app if the device does't have camera
finish();
}
}
/**
* Checking device has camera hardware or not
* */
private boolean isDeviceSupportCamera() {
if (getApplicationContext().getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA)) {
// this device has a camera
return true;
} else {
// no camera on this device
return false;
}
}
/*
* Capturing Camera Image will lauch camera app requrest image capture
*/
private void captureImage() {
intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);
intent1.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
// start the image capture Intent
startActivityForResult(intent1, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
/*
* Here we store the file url as it will be null after returning from camera
* app
*/
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// save file url in bundle as it will be null on scren orientation
// changes
outState.putParcelable("file_uri", fileUri);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// get the file url
fileUri = savedInstanceState.getParcelable("file_uri");
}
/*
* Recording video
*/
private void recordVideo() {
intent1 = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
// set video quality
intent1.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
intent1.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image
// file
// name
// start the video capture Intent
startActivityForResult(intent1, CAMERA_CAPTURE_VIDEO_REQUEST_CODE);
}
/**
* Receiving activity result method will be called after closing the camera
* */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// successfully captured the image
// display it in image view
previewCapturedImage();
} else if (resultCode == RESULT_CANCELED) {
System.out.println("RESULT CANCELED");
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
startActivity(intent);
HomeActivity.myempid = 1;
CaptureImageActivity.this.finish();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
} else if (requestCode == CAMERA_CAPTURE_VIDEO_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
// video successfully recorded
// preview the recorded video
// sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
// Uri.parse(fileUri.getPath())));
System.out.println("RESULT OK");
previewVideo();
} else if (resultCode == RESULT_CANCELED) {
// user cancelled recording
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
startActivity(intent);
HomeActivity.myempid = 1;
Toast.makeText(getApplicationContext(),
"User cancelled video recording", Toast.LENGTH_SHORT)
.show();
finish();
} else {
System.out.println("FAIL");
// failed to record video
Toast.makeText(getApplicationContext(),
"Sorry! Failed to record video", Toast.LENGTH_SHORT)
.show();
}
}
}
/*
* Display image from a path to ImageView
*/
private void previewCapturedImage() {
try {
// hide video preview
videoPreview.setVisibility(View.GONE);
imgPreview.setVisibility(View.VISIBLE);
// bimatp factory
BitmapFactory.Options options = new BitmapFactory.Options();
// downsizing image as it throws OutOfMemory Exception for larger
// images
options.inSampleSize = 8;
final Bitmap bitmap = BitmapFactory.decodeFile(fileUri.getPath(),
options);
System.out.println(bitmap);
imgPreview.setImageBitmap(bitmap);
} catch (NullPointerException e) {
e.printStackTrace();
}
}
/*
* Previewing recorded video
*/
private void previewVideo() {
try {
System.out.println("PATH " + fileUri.getPath());
getContentResolver().notifyChange(Uri.parse(fileUri.getPath()),
null);
MediaController mc = new MediaController(this);
mc.setAnchorView(videoPreview);
// mc.setMediaPlayer(videoPreview);
// hide image preview
// videoPreview.setOnPreparedListener(new OnPreparedListener() {
//
// public void onPrepared(MediaPlayer mp) {
// // TODO Auto-generated method stub
// mp.start();
// }
// });
imgPreview.setVisibility(View.GONE);
// getWindow().clearFlags(
// WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
// getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
// WindowManager.LayoutParams.FLAG_FULLSCREEN);
videoPreview.setVisibility(View.VISIBLE);
// 02-15 11:51:52.973: I/System.out(17840): PATH
// /mnt/sdcard/Pictures/ICS Camera/VID_20140215_115133.mp4
videoPreview.setVideoPath(fileUri.getPath());
// videoPreview.setVideoURI(Uri.parse(Provoder.CONTENT_URI_BASE
// + Uri.encode(fileUri.getPath())));
videoPreview.setMediaController(mc);
videoPreview.requestFocus();
videoPreview.start();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* ------------ Helper Methods ----------------------
* */
/*
* Creating file uri to store image/video
*/
public Uri getOutputMediaFileUri(int type) {
return Uri.fromFile(getOutputMediaFile(type));
}
/*
* returning image / video
*/
private static File getOutputMediaFile(int type) {
// External sdcard location
File mediaStorageDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
IMAGE_DIRECTORY_NAME);
// Create the storage directory if it does not exist
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d(IMAGE_DIRECTORY_NAME, "Oops! Failed create "
+ IMAGE_DIRECTORY_NAME + " directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
Locale.getDefault()).format(new Date());
File mediaFile;
if (type == MEDIA_TYPE_IMAGE) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
} else if (type == MEDIA_TYPE_VIDEO) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "VID_" + timeStamp + ".mp4");
} else {
return null;
}
return mediaFile;
}
}
使用以下
代码解决了我的问题
import java.io.File;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.Window;
import android.widget.ImageView;
import android.widget.MediaController;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.VideoView;
import com.kubical.ES.R;
import com.kubical.ES.util.ApplicationConstants;
public class CaptureImageActivity extends Activity {
// Activity request codes
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;
public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;
// directory name to store captured images and videos
private ImageView imgPreview;
private VideoView videoPreview;
private TextView cancel, send;
private Intent intent1;
private String filePath;
@Override
public void onBackPressed() {
super.onBackPressed();
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
HomeActivity.myempid = 1;
startActivity(intent);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_capture_image);
imgPreview = (ImageView) findViewById(R.id.imgPreview);
videoPreview = (VideoView) findViewById(R.id.videoPreview);
cancel = (TextView) findViewById(R.id.cancel);
send = (TextView) findViewById(R.id.send);
int mode = getIntent().getIntExtra(
ApplicationConstants.IntentKeys.KEY_MODE, 0);
try {
if (HomeActivity.camera != null) {
HomeActivity.camera.release();
HomeActivity.camera = null;
}
} catch (Exception e) {
e.printStackTrace();
}
if (mode == 0)
captureImage();
else
recordVideo();
/*
* Capture image button click event
*/
cancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
startActivity(intent);
HomeActivity.myempid = 1;
CaptureImageActivity.this.finish();
}
});
/*
* Record video button click event //
*/
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent picMessageIntent = new Intent(
android.content.Intent.ACTION_SEND);
picMessageIntent.setType("image/jpeg");
File downloadedPic = new File(filePath);
System.out.println("PATH " + filePath);
picMessageIntent.putExtra(Intent.EXTRA_STREAM,
Uri.fromFile(downloadedPic));
startActivity(picMessageIntent);
// CaptureImageActivity.this.finish();
}
});
// Checking camera availability
if (!isDeviceSupportCamera()) {
Toast.makeText(getApplicationContext(),
"Sorry! Your device doesn't support camera",
Toast.LENGTH_LONG).show();
// will close the app if the device does't have camera
finish();
}
}
/**
* Checking device has camera hardware or not
* */
private boolean isDeviceSupportCamera() {
if (getApplicationContext().getPackageManager().hasSystemFeature(
PackageManager.FEATURE_CAMERA)) {
// this device has a camera
return true;
} else {
// no camera on this device
return false;
}
}
/*
* Capturing Camera Image will lauch camera app requrest image capture
*/
private void captureImage() {
intent1 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent1, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}
/*
* Recording video
*/
private void recordVideo() {
intent1 = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
startActivityForResult(intent1, CAMERA_CAPTURE_VIDEO_REQUEST_CODE);
}
/**
* Receiving activity result method will be called after closing the camera
* */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// if the result is capturing Image
if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
previewCapturedImage(data);
} else if (resultCode == RESULT_CANCELED) {
System.out.println("RESULT CANCELED");
// user cancelled Image capture
Toast.makeText(getApplicationContext(),
"User cancelled image capture", Toast.LENGTH_SHORT)
.show();
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
startActivity(intent);
HomeActivity.myempid = 1;
CaptureImageActivity.this.finish();
} else {
// failed to capture image
Toast.makeText(getApplicationContext(),
"Sorry! Failed to capture image", Toast.LENGTH_SHORT)
.show();
}
} else if (requestCode == CAMERA_CAPTURE_VIDEO_REQUEST_CODE) {
if (resultCode == RESULT_OK) {
previewVideo(data);
} else if (resultCode == RESULT_CANCELED) {
// user cancelled recording
Intent intent = new Intent(CaptureImageActivity.this,
HomeActivity.class);
startActivity(intent);
HomeActivity.myempid = 1;
Toast.makeText(getApplicationContext(),
"User cancelled video recording", Toast.LENGTH_SHORT)
.show();
finish();
} else {
System.out.println("FAIL");
// failed to record video
Toast.makeText(getApplicationContext(),
"Sorry! Failed to record video", Toast.LENGTH_SHORT)
.show();
}
}
}
/*
* Display image from a path to ImageView
*/
private void previewCapturedImage(Intent data) {
try {
// hide video preview
videoPreview.setVisibility(View.GONE);
imgPreview.setVisibility(View.VISIBLE);
// bimatp factory
BitmapFactory.Options options = new BitmapFactory.Options();
// downsizing image as it throws OutOfMemory Exception for larger
// images
options.inSampleSize = 8;
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
filePath = cursor.getString(columnIndex);
System.out.println("PATH IS " + filePath);
cursor.close();
final Bitmap bitmap = BitmapFactory.decodeFile(filePath, options);
System.out.println(bitmap);
imgPreview.setImageBitmap(bitmap);
} catch (NullPointerException e) {
e.printStackTrace();
}
}
/*
* Previewing recorded video
*/
private void previewVideo(Intent data) {
try {
Uri contentUri = data.getData();
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(contentUri, proj, null,
null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
filePath = cursor.getString(column_index);
MediaController mc = new MediaController(this);
mc.setAnchorView(videoPreview);
imgPreview.setVisibility(View.GONE);
videoPreview.setVisibility(View.VISIBLE);
videoPreview.setVideoPath(filePath);
videoPreview.setMediaController(mc);
videoPreview.requestFocus();
videoPreview.start();
} catch (Exception e) {
e.printStackTrace();
}
}
}