如何处理按钮视图中的nullpointerexception

Question

E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.NullPointerException
at com.example.android.dermadetect.DoctorAdapter$1.onClick(DoctorAdapter.java:63)
at android.view.View.performClick(View.java:4223)
at android.view.View$PerformClick.run(View.java:17275)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4921)
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:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(Native Method)

Answer 1

Try{
...
}
catch(NullPointerException e) {
}