1. Causes:

1. Change the user profile picture


2, picture compression


3. A null pointer exception occurs

(Java. Lang. NullPointerException: Attempt to invoke virtual method ‘int android. Graphics. Bitmap. GetWidth ()’ on a null The object reference)

Bitmap.getwidth () is empty for a number of reasons, but I only have this bug for Android 10 + phones; Failed to select album for Android 10

2. Solutions:

1. Check whether targetSdkVersion is above 29, if it is a lower version;

Or 2, add to androidmanifest.xml:

 <application ...... 

     android:requestLegacyExternalStorage="true" 

 >