[英]Android open failed: EACCES (Permission denied)
I'm trying to pick an image from the gallery and when i pick it i get this error: 我正在尝试从图库中选取一张图片,当我选取它时出现此错误:
open failed: EACCES (Permission denied)
in the manifest i already set the permissions: 在清单中,我已经设置了权限:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
But i still have the error and i can't view the image in the ImageView. 但是我仍然有错误,并且无法在ImageView中查看图像。 This is the code anyway:
无论如何这是代码:
public void loadImagefromGallery() {
Intent galleryIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent, PICK_IMAGE_REQUEST);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
try {
// When an Image is picked
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK
&& null != data) {
// Get the Image from data
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
// Get the cursor
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
// Move to first row
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
imgDecodableString = cursor.getString(columnIndex);
cursor.close();
ImageView imgView = (ImageView) findViewById(R.id.firstImg);
// Set the Image in ImageView after decoding the String
imgView.setImageBitmap(BitmapFactory.decodeFile(imgDecodableString));
} else {
Toast.makeText(this, "You haven't picked Image",
Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
Toast.makeText(this, "Something went wrong", Toast.LENGTH_LONG)
.show();
}
}
where loadImagefromGallery()
method is called in a button on click. 单击时在一个按钮中调用
loadImagefromGallery()
方法。 I can't understand the problem.. 我不明白问题所在。
EDIT: 编辑:
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int hasWriteContactsPermission = checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (hasWriteContactsPermission != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_CODE_ASK_PERMISSIONS);
return;
}
loadImagefromGallery();
}
});
This is my onClick() method. 这是我的onClick()方法。 i added the request for permission but still get the same error
我添加了许可请求,但仍然收到相同的错误
SOLVED: I want to post my way to solve the problem. 已解决:我想发布解决问题的方法。 This is what i've done:
这是我所做的:
private void insertDummyImageWrapper() {
int hasWriteContactsPermission = checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (hasWriteContactsPermission != PackageManager.PERMISSION_GRANTED) {
if (!shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
showMessageOKCancel("You need to allow access to SdCard",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
requestPermissions(new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_CODE_ASK_PERMISSIONS);
}
});
return;
}
requestPermissions(new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_CODE_ASK_PERMISSIONS);
return;
}
loadImagefromGallery();
}
private void showMessageOKCancel(String message, DialogInterface.OnClickListener okListener) {
new AlertDialog.Builder(MainActivity.this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show();
}
And in the fab i called the insertDummyImageWrapper() method 在工厂中,我调用了insertDummyImageWrapper()方法
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int hasWriteContactsPermission = checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (hasWriteContactsPermission != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_CODE_ASK_PERMISSIONS);
return;
}
insertDummyImageWrapper();
}
});
Now it 's working perfectly 现在一切正常
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.