[英]application shutdown in emulator after running
每次我嘗試運行該應用程序時,該應用程序都會在 deloadingActivity 后停止。 當它嘗試運行 MainActivity 時它會停止。 我的 logcat 看起來像這樣。
03-18 20:41:11.242 11729-11729/com.example.valueapp D/AndroidRuntime: Shutting down VM
03-18 20:41:11.243 11729-11729/com.example.valueapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.valueapp, PID: 11729
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.valueapp/com.example.valueapp.MainActivity}: java.lang.ClassCastException: androidx.appcompat.widget.AppCompatSpinner cannot be cast to android.widget.EditText
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
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:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassCastException: androidx.appcompat.widget.AppCompatSpinner cannot be cast to android.widget.EditText
at com.example.valueapp.MainActivity.onCreate(MainActivity.java:27)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
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:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
嘗試項目 -> 清潔
如果這不起作用,您實際上可能會將某些內容投射到某個地方的 EditText。
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