Android调用系统相机 并返回原始图片

//获取SD卡路径

mFilePath= Environment.getExternalStorageDirectory().getPath();

mFilePath=mFilePath+"/"+ String.valueOf(System.currentTimeMillis()) +".jpg";

//指定拍照

Intent intent =newIntent(MediaStore.ACTION_IMAGE_CAPTURE);

//加载路径

Uri uri = Uri.fromFile(newFile(mFilePath));

//指定存储路径，这样就可以保存原图了

intent.putExtra(MediaStore.EXTRA_OUTPUT,uri);

//拍照返回图片

startActivityForResult(intent,2);

if(requestCode ==2) {

String filePath=mFilePath;

Bitmap bitmap=BitmapFactory.decodeFile(filePath,getBitmapOption(2));//将图片的长和宽缩小味原来的1/2

imageViews.setImageBitmap(bitmap);

}

private BitmapFactory.Options getBitmapOption(int inSampleSize){

System.gc();

BitmapFactory.Options options =newBitmapFactory.Options();

options.inPurgeable=true;

options.inSampleSize= inSampleSize;

returnoptions;

}