Question

Help me please, how fix this?

public class VisualizerCapture extends Activity implements Visualizer.OnDataCaptureListener
private Visualizer mVisualizer;


@Override
public void onCreate(Bundle savedInstanceState){
 super.onCreate(savedInstanceState);
    mVisualizer = new Visualizer(0);
    setupVisualizer();

private void setupVisualizer() {
    mVisualizer.setEnabled(false);
    mVisualizer.setCaptureSize(8);      //test
    mVisualizer.setDataCaptureListener(this,250,false,true);        
            Log.v("ABS","setupVisualizer" + mVisualizer.getEnabled());    //log

This code throws error:
ERROR/AudioEffect(2393): set(): AudioFlinger could not create effect, status: -22

that was in xml

 <uses-permission android:name="android.permission.RECORD_AUDIO"/>             
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>

logcat:

java.lang.RuntimeException: Unable to start activity ComponentInfo{blabla}: java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -4
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Cannot initialize Visualizer engine, error: -4
at android.media.audiofx.Visualizer.(Visualizer.java:182)
at com.blablabeta.gui.VisualizerCapture.onCreate(EqVisualizerCaptureAudio.java:27)
at android.app.Activity.performCreate(Activity.java:4465)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)

That is it?
and how to fix this error?

Answer 1

The problem was gone then I test my app on real phone.
somthing wrong with emulator.