Develop Reference

Taking and picking photos on Poco X3 with Android 11 does not work

I recently updated my Poco X3 NFC 64GB test device to Android 11:
MIUI Global 12.0.8(RJGEUXM)
Android 11 RKQ1.200826.002
Ever since I am unable to take or pick photos in my app. On other Android 11 devices (and emulator) everything works fine. The app is compiled to API level 30.
I start the photo picker chooser like this:
private void pickPhoto() {
Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
if (intent.resolveActivity(getActivity().getPackageManager()) != null) {
startActivityForResult(intent, 100);
}
}
This works fine, but after I have picked a photo it returns to the app, triggering onActivityResult with resultCode 0 (RESULT_CANCELED) and data is null too. On other Android 11 devices I can retrieve the photo from the data, but not on my Poco. Yes I did add the necessary query to the manifest file (else I wouldn't be able to open the picker in the first place).
When I try to fetch a photo from the camera I have exactly the same issue. Again on other Android 11 devices this works fine. So yes I did add and use the necessary file provider.
Sometimes a toast pops up about not having granted the right permissions. Do any of you guys have a Poco phone and like to try it out? I wonder if the Poco rom is just broken or something.
UPDATE
I've narrowed down the problem. It turns out that if startActivity() starts a camera/gallery activity directly it works fine. However if you're prompted a chooser first (e.g. because you have multiple gallery apps) it goes wrong.
So if you pick a gallery app and say to always use it in the future, the next time it will open that gallery app directly and then it works correctly.
If you use Intent.createChooser() it never works right. Even if it contains only one intent that is launched directly without prompting a chooser it fails to return a photo.
Can we agree that this is a MIUI bug?

What is a reliable way to open the Gallery?

The following code works most of the time:
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("content://media/internal/images/media"));
startActivity(intent);
It throws the following exception sometimes (reported by error log from users):
android.content.ActivityNotFoundException: No Activity found to handle Intent {
act=android.intent.action.VIEW
dat=content://media/internal/images/media }
Stack trace:
android.content.ActivityNotFoundException: No Activity found to handle
Intent { act=android.intent.action.VIEW
dat=content://media/internal/images/media } at
android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1899)
at
android.app.Instrumentation.execStartActivity(Instrumentation.java:1589)
at android.app.Activity.startActivityForResult(Activity.java:4228)
at android.support.v4.app.k.startActivityForResult(SourceFile:50) at
android.support.v4.app.p.startActivityForResult(SourceFile:79) at
android.app.Activity.startActivityForResult(Activity.java:4187) at
android.support.v4.app.p.startActivityForResult(SourceFile:859) at
android.app.Activity.startActivity(Activity.java:4515) at
android.app.Activity.startActivity(Activity.java:4483)
I am wondering if some users' Android devices do not have Gallery.

I am wondering if some users' Android devices do not have Gallery.
There is no requirement for any Android device to have any exported activity that supports that particular Intent structure (ACTION_VIEW for whatever MIME type is tied to that Uri, plus a content scheme).
Beyond that, there is no single app named "Gallery". Out of ~2 billion devices and ~10,000 device models, there may be hundreds of apps that serve this general role, and a device might not have any such app.
What is a reliable way to open Gallery on Android?
See CATEGORY_APP_GALLERY, and be sure to handle the case where there is no matching activity.

Get app that implicit Intent opens

I'm working with some legacy code and the camera is opened using
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
Which is fine. However, some code is running when the camera app is open (I'm not sure entirely why), but it does something if the camera app is in front of the user. The "top" app is retrieved, and then the code that checks if the camera is on top is:
boolean isCameraOnTop = topName.toLowerCase().indexOf("camera") != -1;
This was working fine for some time but we've been testing with a new device whose default camera app name is NOT "camera", but something else ("org.codeaurora.snapcam" if you must know). This approach seems flimsy as any device can have any default camera app.
SO, my question is, when I launch the camera app via the ACTION_IMAGE_CAPTURE intent, how can I find the app that actually gets opened?

After some searching, I found the solution:
activity.getPackageManager().resolveActivity(cameraIntent, PackageManager.MATCH_DEFAULT_ONLY).activityInfo.packageName;

Launch camera on Jelly Bean

I'm working on a app where I have to launch the camera. In Jelly Bean the gallery and camera merged and are now the same app (com.android.gallery3d I think). I've been searching for a answer on how to launch the camera but they're all about the startActivityForResult() method. I don't want the user to return to my app and I don't want my app to get the photo.
How can this be done?

This Intent works fine for me on JellyBean:
Intent intent = new Intent(android.provider.MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
startActivity(intent);

No Activity found to handle Intent { act=android.media.action.IMAGE_CAPTURE }

I received the following crash report in my Android application when trying to call the ACTION_IMAGE_CAPTURE intent. This code has been running in my app for months with no issues. I am guessing this is something specific to a certain type of phone but unfortunately Google does not provide me with any additional information outside the stack trace. Any ideas what could have caused this crash report?
Stack Trace
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.media.action.IMAGE_CAPTURE }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1409)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
at android.app.Activity.startActivityFromChild(Activity.java:3067)
at android.app.Activity.startActivityForResult(Activity.java:2847)
Producing Code
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, MY_CAMERA_ACTIVITY_REQUEST_CODE);
Manifest Entries
<uses-sdk android:minSdkVersion="7" />
<uses-feature android:name="android.hardware.camera" />

A few things come to mind
1.Could be a tablet, the kindle fire does not have a camera.
2. A phone that does not have a camera
3. No SD card installed
I agree you would think it would be a safe operation to call the image capture intent but with so many devices running Android it's impossible to know what device your app is running on.