Intent localIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
File dir = Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
random = new Random();
seqNo = random.nextInt(1000000);
photoName = String.valueOf(seqNo);
output = new File(dir, photoName + ".jpeg");
imgPath = Uri.fromFile(output);
localIntent.putExtra(MediaStore.EXTRA_OUTPUT, imgPath);
path = output.getAbsolutePath();
startActivityForResult(localIntent, PICK_Camera_IMAGE);
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode== PICK_Camera_IMAGE && resultCode == RESULT_OK) {
try {
File f = new File(path);
Matrix mat = new Matrix();
mat.postRotate(90);
//
Bitmap bmp = BitmapFactory.decodeStream(new FileInputStream(f), null, null);
Bitmap bmpPic = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), mat, true);
注意:我使用此代码使用相机拍照。它运行在除三星galaxy s3之外的所有设备中。当我在s3上运行时,它会出现类似OutOfMemoryError的错误。
logcat的:
04-27 11:26:49.775: E/AndroidRuntime(6356): java.lang.OutOfMemoryError
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.graphics.Bitmap.nativeCreate(Native Method)
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.graphics.Bitmap.createBitmap(Bitmap.java:640)
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.graphics.Bitmap.createBitmap(Bitmap.java:586)
04-27 11:26:49.775: E/AndroidRuntime(6356): at com.example.camera.CameraAct$10$1.run(CameraAct.java:378)
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.os.Handler.handleCallback(Handler.java:615)
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.os.Handler.dispatchMessage(Handler.java:92)
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.os.Looper.loop(Looper.java:137)
04-27 11:26:49.775: E/AndroidRuntime(6356): at android.app.ActivityThread.main(ActivityThread.java:4898)
04-27 11:26:49.775: E/AndroidRuntime(6356): at java.lang.reflect.Method.invokeNative(Native Method)
04-27 11:26:49.775: E/AndroidRuntime(6356): at java.lang.reflect.Method.invoke(Method.java:511)
04-27 11:26:49.775: E/AndroidRuntime(6356): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
答案 0 :(得分:2)
在使用之前,您需要减小位图的样本大小。这可以用来做到这一点。
private Bitmap decodeFile(File file)
{
try
{
//********************* decode image size ********************
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(file), null, options);
// ********************** Find the correct scale value. It should be the power of 2. ********************
options.inSampleSize = BitmapConverter.calculateInSampleSize(options, 145, 105);
options.inJustDecodeBounds = false;
return BitmapFactory.decodeStream(new FileInputStream(file), null, options);
}
catch(FileNotFoundException eFileNotFoundException)
{
return null;
}
}
然后你可以根据需要调用Bitmap.recycle(),虽然我觉得没必要。
答案 1 :(得分:0)
BitmapFactory.Options options = new BitmapFactory.Options();
// will results in a much smaller image than the original
options.inSampleSize = 8;
Bitmap bitmap = BitmapFactory.decodeFile(PATH,options);
另请查看可能对您有所帮助的this答案。