我在寫一個可以正常工作的應用程序。有很多活動。每個活動都以橫向模式運行。現在假設用戶正在看到一個活動,並且他按下了設備的電源按鈕,現在設備處於睡眠模式。未找到資源設備的電源按鈕被按下時出現異常
但是當他再次按下電源按鈕設備醒來,現在我的應用程序應該從用戶離開它的位置繼續,但是我的應用程序只是關閉而沒有強制關閉消息,意味着用戶突然進入主屏幕。
在logcat中它顯示了以下錯誤 -
01-31 12:22:40.010: E/AndroidRuntime(10591): FATAL EXCEPTION: main
01-31 12:22:40.010: E/AndroidRuntime(10591): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.reflexapp/com.example.reflexapp.Login}: android.content.res.Resources$NotFoundException: Resource ID #0x7f030023
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2299)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.ActivityThread.access$700(ActivityThread.java:150)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.os.Handler.dispatchMessage(Handler.java:99)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.os.Looper.loop(Looper.java:137)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.ActivityThread.main(ActivityThread.java:5283)
01-31 12:22:40.010: E/AndroidRuntime(10591): at java.lang.reflect.Method.invokeNative(Native Method)
01-31 12:22:40.010: E/AndroidRuntime(10591): at java.lang.reflect.Method.invoke(Method.java:511)
01-31 12:22:40.010: E/AndroidRuntime(10591): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
01-31 12:22:40.010: E/AndroidRuntime(10591): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
01-31 12:22:40.010: E/AndroidRuntime(10591): at dalvik.system.NativeStart.main(Native Method)
01-31 12:22:40.010: E/AndroidRuntime(10591): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f030023
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.content.res.Resources.getValue(Resources.java:1883)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.content.res.Resources.loadXmlResourceParser(Resources.java:3028)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.content.res.Resources.getLayout(Resources.java:1722)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.view.LayoutInflater.inflate(LayoutInflater.java:395)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
01-31 12:22:40.010: E/AndroidRuntime(10591): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:364)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.Activity.setContentView(Activity.java:1930)
01-31 12:22:40.010: E/AndroidRuntime(10591): at com.example.reflexapp.Login.onCreate(Login.java:18)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.Activity.performCreate(Activity.java:5283)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
01-31 12:22:40.010: E/AndroidRuntime(10591): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
01-31 12:22:40.010: E/AndroidRuntime(10591): ... 11 more
我不明白我在做什麼錯在這裏。在每個活動中,我都這樣做 -
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.userlogin);
init();
}
請幫我一把。提前致謝。
什麼在Login.java(第18行)? –
其活動,它有一個佈局文件R.layout.login。 – Anush
你確定R文件有你自己的類而不是通用的'android.R' –