2016-10-02 72 views
-1

我在我的佈局xml中意外地將按鈕的ID設置爲「mybutton-1」。當我在Android Studio中點擊「運行應用程序」,它切換到R.java一個錯誤在Android搞砸了R.java無法找到資源ID#0xffffffff

public static final int mybutton-1=0x7f0b00e1; 和錯誤消息說,有預期的-1後;。所以我將佈局xml中該按鈕的id更改爲「myButton_a」,然後再次運行應用程序。這一次,我在mainActivity.java在得到了一個錯誤:

ArrayList<View> focusableViews = view.getFocusables(View.FOCUS_FORWARD); 
for (int i = 0; i < focusableViews.size(); i++) { 
    View actualView = focusableViews.get(i); 
    String actualID = actualView.getResources().getResourceEntryName(actualView.getId()); // here 
    ... 
} 

我看着R.java和預期 public static final int myButton_a=0x7f0b00e1;

這更新了我的變化是堆棧跟蹤:

E/AndroidRuntime: FATAL EXCEPTION: main 
        Process: myApp.mainActivity, PID: 31364 
        java.lang.RuntimeException: Unable to start activity ComponentInfo{myApp.mainActivity/myApp.mainActivity.mainLayout}: android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff 
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3254) 
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350) 
         at android.app.ActivityThread.access$1100(ActivityThread.java:222) 
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795) 
         at android.os.Handler.dispatchMessage(Handler.java:102) 
         at android.os.Looper.loop(Looper.java:158) 
         at android.app.ActivityThread.main(ActivityThread.java:7229) 
         at java.lang.reflect.Method.invoke(Native Method) 
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 
        Caused by: android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff 
         at android.content.res.Resources.getResourceEntryName(Resources.java:3738) 
         at android.support.v7.widget.ResourcesWrapper.getResourceEntryName(ResourcesWrapper.java:264) 
         at myApp.mainActivity.doStuff(mainActivity.java:341) 
         at myApp.mainActivity.onCreate(mainActivity.java:71) 
         at android.app.Activity.performCreate(Activity.java:6876) 
         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135) 
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207) 
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350)  
         at android.app.ActivityThread.access$1100(ActivityThread.java:222)  
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795)  
         at android.os.Handler.dispatchMessage(Handler.java:102)  
         at android.os.Looper.loop(Looper.java:158)  
         at android.app.ActivityThread.main(ActivityThread.java:7229)  
         at java.lang.reflect.Method.invoke(Native Method)  
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)  
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)  

我該如何解決這個問題?我讀過,我必須手動設置ID,但有另一種方法嗎?我不想再混淆ID了

+1

'actualView.getId()'輸出的是什麼? – Turtle

+1

Error說'actualView.getId()'的值是'0xffffffff'。所以你的一個ID是-1。 –

+1

清理項目並重建它 –

回答

2

如果您的視圖沒有ID,那麼getId()將返回-1。所以它成爲0xffffffff。

看來您的focusableViews不僅包含mybutton1,,而且還包含一些其他沒有編號爲的人。那就是問題所在。