1.问题描述
Android调用相机拍照保存,然后读取保存好的照片,在读取照片时出现异常(该异常是因为没有SD卡的读取权限所致):
11-08 11:07:46.421 8539-8539/com.choosepictest D/CROP_PHOTO: /storage/emulated/0/output_image.jpg: open failed: EACCES (Permission denied)
下面是Java代码:
public void btnTakePhoto_onClick(View view)
{
picture = (ImageView)findViewById(R.id.ivPicture);
// 创建File对象,用于存储拍照后的图片
File outputImage = new File(Environment.getExternalStorageDirectory(),"output_image.jpg");
try
{
if(outputImage.exists())
{
outputImage.delete();
}
outputImage.createNewFile();
}
catch (IOException e)
{
e.printStackTrace();
}
imageUri = Uri.fromFile(outputImage);
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
startActivityForResult(intent,TAKE_PHOTO);
}
@Override
protected void onActivityResult(int requestCode,int resultCode,Intent data)
{
switch (requestCode)
{
case TAKE_PHOTO:
if(resultCode == RESULT_OK)
{
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(imageUri,"image/*");
intent.putExtra("scale",true);
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
startActivityForResult(intent,CROP_PHOTO);
}
break;
case CROP_PHOTO:
if(resultCode == RESULT_OK)
{
try
{
Bitmap bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri));
picture.setImageBitmap(bitmap);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
Log.d("CROP_PHOTO",e.getMessage());
}
}
break;
}
}
因为是权限问题,所以在AndroidManifest.xml中添加了相应权限,但是问题没有解决,下面是AndroidManifest.xml代码:
2.解决方法
在往上查找了一些解决办法,基本上都是添加权限,但是权限我已经添加,问题还是没有解决,暂时没有找到解决办法。下面是网上的解决方法:
http://blog.csdn.net/zxkevin1989/article/details/7464550/
http://stackoverflow.com/questions/8854359/exception-open-failed-eacces-permission-denied-on-android
http://stackoverflow.com/questions/26208751/filenotfoundexception-storage-emulated-0-pictures-pic-jpg-open-failed-eacces
注:上述解决办法都是正确的,是我的手机自动禁用了App的存储权限,开启权限后,问题解决。