C
CHR1ST0PH3R
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Hallo,
ich hab in Android Studio das pdfrenderer sample project importiert jedoch crasht die APP auf den Avd (Android 6.0.1 und 7) und auf meinem A5 unter cm13 (Android 6.0.1) nach etwa 10 Sekunden. Vorher sehe ich nur eine leere activity.
Fehlercode:
Was hab ich falsch gemacht?
LG Christopher
ich hab in Android Studio das pdfrenderer sample project importiert jedoch crasht die APP auf den Avd (Android 6.0.1 und 7) und auf meinem A5 unter cm13 (Android 6.0.1) nach etwa 10 Sekunden. Vorher sehe ich nur eine leere activity.
Fehlercode:
Code:
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.android.pdfrendererbasic, PID: 27604
Theme: themes:{default=overlay:system, iconPack:system, fontPkg:system, com.android.systemui=overlay:system, com.android.systemui.navbar=overlay:system}
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.pdfrendererbasic/com.example.android.pdfrendererbasic.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.pdf.PdfRenderer.getPageCount()' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2450)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.pdf.PdfRenderer.getPageCount()' on a null object reference
at com.example.android.pdfrendererbasic.PdfRendererBasicFragment.showPage(PdfRendererBasicFragment.java:163)
at com.example.android.pdfrendererbasic.PdfRendererBasicFragment.onViewCreated(PdfRendererBasicFragment.java:101)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:988)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1148)
at android.app.BackStackRecord.run(BackStackRecord.java:793)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1535)
at android.app.FragmentController.execPendingActions(FragmentController.java:325)
at android.app.Activity.performStart(Activity.java:6267)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)*
at android.app.ActivityThread.-wrap11(ActivityThread.java)*
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)*
at android.os.Handler.dispatchMessage(Handler.java:102)*
at android.os.Looper.loop(Looper.java:148)*
at android.app.ActivityThread.main(ActivityThread.java:5461)*
at java.lang.reflect.Method.invoke(Native Method)*
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)*
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)*
Application terminated.
Was hab ich falsch gemacht?
LG Christopher