Getting crash while start the activity

Question

java.lang.NullPointerException at android.text.StaticLayout.(StaticLayout.java:59) at android.support.v7.widget.SwitchCompat.makeLayout(SwitchCompat.java:602) at android.support.v7.widget.SwitchCompat.onMeasure(SwitchCompat.java:522) at android.view.View.measure(View.java:16845) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5374) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1621) at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1199) at android.widget.LinearLayout.onMeasure(LinearLayout.java:609) at android.view.View.measure(View.java:16845) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:824) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:500) at android.view.View.measure(View.java:16845) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5374) at android.widget.FrameLayout.onMeasure(FrameLayout.java:340) at android.view.View.measure(View.java:16845) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5374) at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327) at android.view.View.measure(View.java:16845) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5374) at android.widget.FrameLayout.onMeasure(FrameLayout.java:340) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2368) at android.view.View.measure(View.java:16845) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2296) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1362) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1559) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1239) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6278) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:788) at android.view.Choreographer.doCallbacks(Choreographer.java:591) at android.view.Choreographer.doFrame(Choreographer.java:560) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:774) at android.os.Handler.handleCallback(Handler.java:808) at android.os.Handler.dispatchMessage(Handler.java:103) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:5328) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:838) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:654) at dalvik.system.NativeStart.main(Native Method)

Answer 1

If you are using SwitchCompat then use android:textOn="On" and android:textOff="Off" in xml. Because the textOn and textOff labels are null as a default value.