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问题:
In My Application I am trying to Pick image from galley, so as to pass that image to server.
Code is working fine on Android 5 and below, but for Android 6 on Nexus 5 I am not able to get image information. Log trace which I got
Note: Code is working fine on Android 5 and below versions
11-06 12:27:43.736: W/System.err(31678): java.lang.SecurityException: Permission Denial: reading com.google.android.apps.photos.contentprovider.MediaContentProvider uri content://com.google.android.apps.photos.contentprovider/0/1/content%3A//media/external/images/media/19138/ACTUAL/94710853 from pid=31678, uid=10111 requires the provider be exported, or grantUriPermission()
11-06 12:27:43.757: W/System.err(31678):
at android.os.Parcel.readException(Parcel.java:1599)
11-06 12:27:43.757: W/System.err(31678):
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183)
11-06 12:27:43.757: W/System.err(31678):
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135)
11-06 12:27:43.757: W/System.err(31678):
at android.content.ContentProviderProxy.query(ContentProviderNative.java:421)
11-06 12:27:43.757: W/System.err(31678):
at android.content.ContentResolver.query(ContentResolver.java:491)
11-06 12:27:43.757: W/System.err(31678):
at android.content.ContentResolver.query(ContentResolver.java:434)
11-06 12:27:43.758: W/System.err(31678):
at org.apache.cordova.file.ContentFilesystem.openCursorForURL(ContentFilesystem.java:258)
11-06 12:27:43.758: W/System.err(31678):
at org.apache.cordova.file.ContentFilesystem.getFileMetadataForLocalURL(ContentFilesystem.java:169)
11-06 12:27:43.758: W/System.err(31678):
at org.apache.cordova.file.FileUtils.getFileMetadata(FileUtils.java:822)
11-06 12:27:43.758: W/System.err(31678):
at org.apache.cordova.file.FileUtils.access$500(FileUtils.java:52)
11-06 12:27:43.758: W/System.err(31678):
at org.apache.cordova.file.FileUtils$15.run(FileUtils.java:394)
11-06 12:27:43.758: W/System.err(31678):
at org.apache.cordova.file.FileUtils$25.run(FileUtils.java:551)
11-06 12:27:43.758: W/System.err(31678):
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
11-06 12:27:43.758: W/System.err(31678):
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
11-06 12:27:43.758: W/System.err(31678):
at java.lang.Thread.run(Thread.java:818)
回答1:
DO it this way...
on Button Click check for SDK Version
if (Build.VERSION.SDK_INT >= 23){
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(MainActivity.this,
Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
Manifest.permission.READ_EXTERNAL_STORAGE)) {
// Show an expanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
// MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}else{
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
}
}else {
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, SELECT_PHOTO);
}
after that in Override method onRequestPermissionsResult write this code:
case MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// contacts-related task you need to do.
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, SELECT_PHOTO);
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
}
return;
}
After that
@Override
protected void onActivityResult(int reqCode, int resultCode, Intent data) {
super.onActivityResult(reqCode, resultCode, data);
switch (reqCode) {
case SELECT_PHOTO:
if (resultCode == RESULT_OK) {
try {
final Uri imageUri = data.getData();
final InputStream imageStream = getContentResolver().openInputStream(imageUri);
final Bitmap selectedImage = BitmapFactory.decodeStream(imageStream);
contactimage.setImageBitmap(selectedImage);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
回答2:
I believe you'll need to request the permissions to the user at runtime (this is one of the most noticeable changes from api 22 to 23).
You can try this snippet, extracted from the Android Developers permission page
if (Build.VERSION.SDK_INT >= 23){
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(thisActivity,
Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
Manifest.permission.READ_EXTERNAL_STORAGE)) {
// Show an expanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(thisActivity,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE);
// MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}
}
Let me know if it helped.
回答3:
In order to get image from Gallery in Marshmallow, You are required to grant READ_EXTERNAL_STORAGE permission at run time. Android Version M has changed the way permissions are granted to applications.
Before Marshmallow, all required permissions are granted at once and that is at the time of installation. But in Marshmallow, User is asked for permission at the time only if that permission is required, and the User has to either Allow or Deny that permission.
Below two links will help you more. Link 1 is from official documentation of Android, and Link 2 is a blog which has explained this issue with a working example.
Link1: http://developer.android.com/training/permissions/requesting.html
Link2: http://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en
回答4:
I had the same issue. The image showed in Imageview after picking the image from gallery using
Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent, videoIdentifier);
and decoding the bitmap image from the URI
But saving the URI for future use and reopening the app and reusing the saved URI not worked. Couldn't decoding the bitmap from URI.
I solved the issue by extracting the original content uri from URI path
public String RemoveUnwantedString(String pathUri){
//pathUri = "content://com.google.android.apps.photos.contentprovider/-1/2/content://media/external/video/media/5213/ORIGINAL/NONE/2106970034"
String[] d1 = pathUri.split("content://");
for (String item1:d1) {
if (item1.contains("media/")) {
String[] d2 = item1.split("/ORIGINAL/");
for (String item2:d2) {
if (item2.contains("media/")) {
pathUri = "content://" + item2;
break;
}
}
break;
}
}
//pathUri = "content://media/external/video/media/5213"
return pathUri;
}
回答5:
Try this
This is the simple method that i have created with other examples
call CHECKGALLERYPERMISSION() method where you want and paste the code inside method
private void CHECKGALLERYPERMISSION()
{
int MY_READ_PERMISSION_REQUEST_CODE =1 ;
int PICK_IMAGE_REQUEST = 2;
if (ContextCompat.checkSelfPermission(YourActivity.this, android.Manifest.permission.READ_EXTERNAL_STORAGE)== PackageManager.PERMISSION_GRANTED)
{
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);
}
else
{
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
{
requestPermissions(
new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE},
MY_READ_PERMISSION_REQUEST_CODE);
}
else
{
}
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[]
permissions, int[] grantResults) {
if (requestCode == MY_READ_PERMISSION_REQUEST_CODE
&& grantResults[0] == PackageManager.PERMISSION_GRANTED)
{
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST);
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null)
{
Uri uri = data.getData();
try
{
Bitmap bitmap = MediaStore.Images.Media.getBitmap(YourActivity.this.getContentResolver(), uri);
imageview.setImageBitmap(bitmap);
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
Note
- in fragement use getactivity() instead of activity.this
- if android.Manifest.permission.READ_EXTERNAL_STORAGE not working change this to Manifest.permission.READ_EXTERNAL_STORAGE in all places
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