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FireZenk / AudioWaves

Shows a graphic representation of the sounds captured by the microphone on Android
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NullPointerException #1

Open sajadmartiny opened 8 years ago

sajadmartiny commented 8 years ago

when build sample on my phone (api17) , return null for dispatcher in prepare and crashed sample,

01-05 16:32:57.105 32068-32068/org.firezenk.audiowaves.sample E/AndroidRuntime: FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{org.firezenk.audiowaves.sample/org.firezenk.audiowaves.sample.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class org.firezenk.audiowaves.Visualizer at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2351) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403) at android.app.ActivityThread.access$600(ActivityThread.java:165) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5391) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:525) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) at dalvik.system.NativeStart.main(Native Method) Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class org.firezenk.audiowaves.Visualizer at android.view.LayoutInflater.createView(LayoutInflater.java:613) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687) at android.view.LayoutInflater.rInflate(LayoutInflater.java:746) at android.view.LayoutInflater.inflate(LayoutInflater.java:489) at android.view.LayoutInflater.inflate(LayoutInflater.java:396) at android.view.LayoutInflater.inflate(LayoutInflater.java:352) at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249) at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106) at org.firezenk.audiowaves.sample.MainActivity.onCreate(MainActivity.java:15) at android.app.Activity.performCreate(Activity.java:5122) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1150) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2315) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)  at android.app.ActivityThread.access$600(ActivityThread.java:165)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373)  at android.os.Handler.dispatchMessage(Handler.java:107)  at android.os.Looper.loop(Looper.java:194)  at android.app.ActivityThread.main(ActivityThread.java:5391)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:525)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.constructNative(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:417) at android.view.LayoutInflater.createView(LayoutInflater.java:587) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)  at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)  at android.view.LayoutInflater.inflate(LayoutInflater.java:489)  at android.view.LayoutInflater.inflate(LayoutInflater.java:396)  at android.view.LayoutInflater.inflate(LayoutInflater.java:352)  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)  at org.firezenk.audiowaves.sample.MainActivity.onCreate(MainActivity.java:15)  at android.app.Activity.performCreate(Activity.java:5122)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1150)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2315)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)  at android.app.ActivityThread.access$600(ActivityThread.java:165)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373)  at android.os.Handler.dispatchMessage(Handler.java:107)  at android.os.Looper.loop(Looper.java:194)  at android.app.ActivityThread.main(ActivityThread.java:5391)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:525)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.NullPointerException at org.firezenk.audiowaves.Visualizer.prepare(Visualizer.java:290) at org.firezenk.audiowaves.Visualizer.init(Visualizer.java:152) at org.firezenk.audiowaves.Visualizer.(Visualizer.java:71) at java.lang.reflect.Constructor.constructNative(Native Method)  at java.lang.reflect.Constructor.newInstance(Constructor.java:417)  at android.view.LayoutInflater.createView(LayoutInflater.java:587)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)  at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)  at android.view.LayoutInflater.inflate(LayoutInflater.java:489)  at android.view.LayoutInflater.inflate(LayoutInflater.java:396)  at android.view.LayoutInflater.inflate(LayoutInflater.java:352)  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)  at org.firezenk.audiowaves.sample.MainActivity.onCreate(MainActivity.java:15)  at android.app.Activity.performCreate(Activity.java:5122)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1150)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2315)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)  at android.app.ActivityThread.access$600(ActivityThread.java:165)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1373)  at android.os.Handler.dispatchMessage(Handler.java:107)  at android.os.Looper.loop(Looper.java:194)  at android.app.ActivityThread.main(ActivityThread.java:5391)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:525)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)  at dalvik.system.NativeStart.main(Native Method) 

msoner1 commented 8 years ago

You need to give permission to access the microphone.If you did it in AndroidManifest.Check your phone settings in Settings/Apps/[Your_app]/Permissions/... and you enabled Microphone.