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heinz meza
1,121 PointsRunning app crashes when I click the 1st button
App crashes when I select the 1st button after the 1st step "Stop and Investigate". the 2nd button runs perfect but when I do the First button the app crashes. Any hint at how to solve it?. Thanks below crash report :
1-14 15:10:22.320 19141-19141/com.example.android.interactivestory E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: com.example.android.interactivestory, PID: 19141 java.lang.NullPointerException: Attempt to invoke virtual method 'int com.example.android.interactivestory.model.Page.getImageId()' on a null object reference at com.example.android.interactivestory.ui.StoryActivity.loadPage(StoryActivity.java:60) at com.example.android.interactivestory.ui.StoryActivity.access$100(StoryActivity.java:18) at com.example.android.interactivestory.ui.StoryActivity$2.onClick(StoryActivity.java:89) at android.view.View.performClick(View.java:4756) at android.view.View$PerformClick.run(View.java:19749) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
2 Answers
faraz
Courses Plus Student 21,474 PointsIt looks like null was passed into the method getImageId(). Can you please show your code for the Page and StoryActivity classes? That should help further identify the error.
heinz meza
1,121 PointsThanks for your response. I already fixed. What happen is that I didn't the copy the data for # 1 in the Story Activity. now it works perfect.
faraz
Courses Plus Student 21,474 PointsI'm glad you were able to fix it, good luck with the rest of the course!