Java Question Failed resolution of: Landroid/support/v4/media/app/NotificationCompat$MediaStyle

somed3v3loper · Jun 12, 2019

I am trying to wrap NotificationCompat.MediaStyle and it seems to compile fine but the application crashes immediately with this log

B4X:

starter_downloadfile (java line: 163)
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/media/app/NotificationCompat$MediaStyle;
    at smm.pktyle.MediaStyleBA._initialize(MediaStyleBA.java:55)
    at smm.pktyle.MediaStyleBA.Initialize(MediaStyleBA.java:45)
    at b4a.example.starter._downloadfile(starter.java:163)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:897)
    at anywheresoftware.b4a.keywords.Common.CallSubNew(Common.java:831)
    at b4a.example.main._activity_create(main.java:335)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
    at b4a.example.main.afterFirstLayout(main.java:102)
    at b4a.example.main.access$000(main.java:17)
    at b4a.example.main$WaitForLayout.run(main.java:80)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:193)
    at android.app.ActivityThread.main(ActivityThread.java:6718)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.media.app.NotificationCompat$MediaStyle" on path: DexPathList[[zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/data/app/b4a.example-xQZ0zBa3LgeEw-RxsnHrBQ==/base.apk"],nativeLibraryDirectories=[/data/app/b4a.example-xQZ0zBa3LgeEw-RxsnHrBQ==/lib/arm64, /system/lib64, /vendor/lib64]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)

Source code is as simple as

B4X:

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.net.Uri;
import android.os.Environment;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import anywheresoftware.b4a.BA;
import anywheresoftware.b4a.BA.Events;
import anywheresoftware.b4a.BA.Hide;
import anywheresoftware.b4a.BA.Pixel;
import anywheresoftware.b4a.BA.ShortName;
import anywheresoftware.b4a.BA.Version;
import anywheresoftware.b4a.AbsObjectWrapper;

import anywheresoftware.b4a.BA.Author;
import anywheresoftware.b4a.BA.DependsOn;
import anywheresoftware.b4a.BA.ActivityObject;

import android.support.v4.app.NotificationCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.media.app.NotificationCompat.MediaStyle;


@Version(0.01f)
@ShortName("MediaStyle")
@Author("SMM")

@DependsOn(values={"com.android.support:support-v4"})

public class MediaStyleBA extends AbsObjectWrapper<MediaStyle>  {
    private BA ba;   
    private MediaStyle obj;
    private String eventName;
    
    public void Initialize(BA ba , String EventName ) {
        _initialize(ba,  EventName);
        
    }

    @Hide
    public void _initialize(final BA ba,String EventName) {
        this.ba = ba;
        this.eventName = EventName.toLowerCase(BA.cul);
        AttributeSet myAttributes = null;
        
        obj = new MediaStyle();
        this.setObject(obj);
        

        
    
        

    
    
    
}

}

What do you suggest ?
Sorry for asking too much these days , I am always looking for things but usually search is enough

DonManfred · Jun 12, 2019

somed3v3loper said:
What do you suggest ?

add a #additionaljar for the missing maven artifact.

https://developer.android.com/reference/android/support/v4-media-app/NotificationCompat.MediaStyle

belongs to Maven artifact com.android.support:support-media-compat:28.0.0-alpha1

->

B4X:

#additionaljar:com.android.support:support-media-compat

somed3v3loper · Jun 12, 2019

DonManfred said:
add a #additionaljar for the missing maven artifact.

https://developer.android.com/reference/android/support/v4-media-app/NotificationCompat.MediaStyle

belongs to Maven artifact com.android.support:support-media-compat:28.0.0-alpha1

->

B4X:

#additionaljar:com.android.support:support-media-compat

Still same crash

DonManfred · Jun 12, 2019

somed3v3loper said:
Still same crash

the same error??? Really?

Can you upload a small example project and the library (jar and xml)?

somed3v3loper · Jun 12, 2019

DonManfred said:
the same error??? Really?

I think so :

B4X:

java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/media/app/NotificationCompat$MediaStyle;
    at smm.pktyle.MediaStyleBA._initialize(MediaStyleBA.java:55)
    at smm.pktyle.MediaStyleBA.Initialize(MediaStyleBA.java:45)
    at b4a.example.starter._downloadfile(starter.java:163)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:897)
    at anywheresoftware.b4a.keywords.Common.CallSubNew(Common.java:831)
    at b4a.example.main._activity_create(main.java:335)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
    at b4a.example.main.afterFirstLayout(main.java:102)
    at b4a.example.main.access$000(main.java:17)
    at b4a.example.main$WaitForLayout.run(main.java:80)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:193)
    at android.app.ActivityThread.main(ActivityThread.java:6718)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.media.app.NotificationCompat$MediaStyle" on path: DexPathList[[zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/data/app/b4a.example-00j2LsCihrFbBqT9R9GnVA==/base.apk"],nativeLibraryDirectories=[/data/app/b4a.example-00j2LsCihrFbBqT9R9GnVA==/lib/arm64, /system/lib64, /vendor/lib64]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    ... 20 more

DonManfred · Jun 12, 2019

somed3v3loper said:
I think so

yes, looks identical.

Try com.android.support.media2
Note that you should download the artifact in the SDK Manager too

somed3v3loper · Jun 12, 2019

DonManfred said:
yes, looks identical.

Try com.android.support.media2
Note that you should download the artifact in the SDK Manager too

It is already installed
but if I add #additionaljar:com.android.support:support-media2 , I get Maven artifact not found: com.android.support/support-media2

DonManfred · Jun 12, 2019

somed3v3loper said:
but if I add #additionaljar:com.android.support:support-media2

sorry.
Based on the artifact in the SDK Manager it must be
com.android.support:media2

somed3v3loper · Jun 12, 2019

DonManfred said:
sorry.
Based on the artifact in the SDK Manager it must be
com.android.support:media2

Same error : Maven artifact not found: com.android.support/media2

Erel · Jun 13, 2019

Works fine here:

B4X:

#additionaljar:com.android.support:support-media-compat
Sub Process_Globals

End Sub

Sub Globals

End Sub

Sub Activity_Create(FirstTime As Boolean)
   Dim mediastyle As JavaObject
   mediastyle.InitializeNewInstance("android.support.v4.media.app.NotificationCompat.MediaStyle", Null)
   Log(mediastyle)
End Sub

Make sure to clean the project after you add #AdditionalJar.

somed3v3loper · Jun 13, 2019

Erel said:

Works fine here:

B4X:

#additionaljar:com.android.support:support-media-compat
Sub Process_Globals

End Sub

Sub Globals

End Sub

Sub Activity_Create(FirstTime As Boolean)
   Dim mediastyle As JavaObject
   mediastyle.InitializeNewInstance("android.support.v4.media.app.NotificationCompat.MediaStyle", Null)
   Log(mediastyle)
End Sub

Make sure to clean the project after you add #AdditionalJar.

Now I am getting this which seems to be the same

Is B4A 6.50 a problem here ?

B4X:

** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
main_activity_create (java line: 338)
java.lang.ClassNotFoundException: android.support.v4.media$app$NotificationCompat$MediaStyle
    at anywheresoftware.b4j.object.JavaObject.getCorrectClassName(JavaObject.java:288)
    at anywheresoftware.b4j.object.JavaObject.InitializeNewInstance(JavaObject.java:83)
    at b4a.example.main._activity_create(main.java:338)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
    at b4a.example.main.afterFirstLayout(main.java:102)
    at b4a.example.main.access$000(main.java:17)
    at b4a.example.main$WaitForLayout.run(main.java:80)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:193)
    at android.app.ActivityThread.main(ActivityThread.java:6718)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Erel · Jun 13, 2019

somed3v3loper said:
Is B4A 6.50 a problem here ?

Yes.

somed3v3loper · Jun 13, 2019

Erel said:
Yes.

Is there a workaround till I can update ?

Erel · Jun 13, 2019

B4A v6.50 doesn't support maven resources. There is no simple workaround if you want to use this resource. You can switch to the native MediaStyle that is supported from Android 5+.

Java Question Failed resolution of: Landroid/support/v4/media/app/NotificationCompat$MediaStyle

somed3v3loper

Well-Known Member

DonManfred

Expert

somed3v3loper

Well-Known Member

DonManfred

Expert

somed3v3loper

Well-Known Member

DonManfred

Expert

somed3v3loper

Well-Known Member

DonManfred

Expert

somed3v3loper

Well-Known Member

Erel

B4X founder

somed3v3loper

Well-Known Member

Erel

B4X founder

somed3v3loper

Well-Known Member

Erel

B4X founder

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