我的應用出現問題。該應用程序完美運作。如果我按下後退按鈕,應用程序顯然會關閉而沒有任何問題。如果我按主頁按鈕,應用程序在後臺。如果我立即打開應用程序,這可行,但如果我打開其他應用程序,然後打開我的應用程序經常崩潰。打開其他應用後Android應用崩潰
我該如何解決?我必須實現onPause方法?但是如何?
26 21:46:27.341 29621-29621/parlamento_italiano.android E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: parlamento_italiano.android, PID: 29621
java.lang.RuntimeException: Unable to start activity ComponentInfo{parlamento_italiano.android/com.prova.prova3.Quarta}: java.lang.NumberFormatException: Invalid int: ""
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3119)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3218)
at android.app.ActivityThread.access$1000(ActivityThread.java:198)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1676)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6837)
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:1404)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)
Caused by: java.lang.NumberFormatException: Invalid int: ""
at java.lang.Integer.invalidInt(Integer.java:138)
at java.lang.Integer.parseInt(Integer.java:358)
at java.lang.Integer.parseInt(Integer.java:334)
at com.prova.prova3.R2.onCreateView(R2.java:77)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1962)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1026)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1207)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1189)
at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:2001)
at android.support.v4.app.FragmentController.dispatchActivityCreated(FragmentController.java:165)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:507)
at com.prova.prova3.Quarta.onStart(Quarta.java:291)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1250)
at android.app.Activity.performStart(Activity.java:6538)
這導致崩潰
int x = Integer.parseInt(numVoti.replaceAll("[\\D]", ""));
你能分享顯示崩潰的堆棧跟蹤嗎? – gcgrant
@gcgrant我更新了我的問題 –
@DomenicoRafti很好,你已經確定了導致崩潰的行 - 現在你爲什麼要這麼做,以至於你試圖解析一個沒有數字的字符串。 –