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android 手机拍照后获取图片导致OOM问题

2015-10-08 18:40 471 查看
</pre>1.拍摄图片后获取的图片大小为 11M  <p></p><p>通过一下方法获取到图片</p><pre name="code" class="java">Uri takePhotoUri = Uri.parse(android.provider.MediaStore.Images.Media.insertImage(getContentResolver(),
f.getAbsolutePath(), null, null));
但是有时候会导致OOM

2.所以改为在拍照的时候设置图片存储路径

private String mTakePhotoName;
private void takePhoto() {
String status = Environment.getExternalStorageState();
if (status.equals(Environment.MEDIA_MOUNTED)) {
try {
mTakePhotoName = System.currentTimeMillis() + ".png";
File dir = new File(Environment.getExternalStorageDirectory() + "/FollowMePhoto");
if (!dir.exists()) dir.mkdirs();
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
File f = new File(dir, mTakePhotoName);
Uri u = Uri.fromFile(f);
intent.putExtra(MediaStore.Images.Media.ORIENTATION, 0);
intent.putExtra(MediaStore.EXTRA_OUTPUT, u);
// intent.putExtra(MediaStore.EXTRA_SIZE_LIMIT, 3 * 1024 );
startActivityForResult(intent, Constants.ActivityReturnReuqestCode.TAKE_PHOTO);
} catch (ActivityNotFoundException e) {
// Toast.makeText(PersonalInfoActivity.this, "没有找到储存目录", Toast.LENGTH_LONG).show();
e.printStackTrace();
}
} else {
}
}

然后在返回中处理
String path = Environment.getExternalStorageDirectory()
+ "/FollowMePhoto"+"/" + mTakePhotoName;
File f = new File(path);
try {
//检测图片是否旋转了,如果旋转,则旋转回来
int degree = PictureUtil.getBitmapDegree(path);
if(degree != 0) {
Bitmap bitmap = PictureUtil.rotateBitmapByDegree(BitmapUtil.getBitmap(path), degree);
Uri takePhotoUri = UriUtil.getUriFromBitmap(this, bitmap);
if(null != takePhotoUri)
cropImageUri(takePhotoUri, Constants.ActivityReturnReuqestCode.HEAD_PORTRAIT_CROP);
} else {
//
long pictureSize = f.getTotalSpace() / 1024 / 1024 / 1024;
LogUtils.i("Picture size = " + pictureSize);
LogUtils.i("Picture url = " + path);
Uri takePhotoUri = Uri.parse("file:" + path);

// Uri takePhotoUri = Uri.parse(android.provider.MediaStore.Images.Media.insertImage(getContentResolver(),
// f.getAbsolutePath(), null, null));
cropImageUri(takePhotoUri, Constants.ActivityReturnReuqestCode.HEAD_PORTRAIT_CROP);
}
} catch (Exception e) {
e.printStackTrace();
}这样就不会有第一种方式去处理Bitmap而产生的OOM呢,从选择图片到切图界面速度也会快一点。
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