保存並加載隨機數不起作用

我試圖在第一次啓動應用程序時生成一個隨機數，並將其顯示在文本視圖中。此外，我需要隨機文本保存並加載下一個應用程序的開始。保存並加載隨機數不起作用

所以這是代碼I'n嘗試：

SharedPreferences prefs = null; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    prefs = getSharedPreferences("com.mycompany.myAppName", MODE_PRIVATE); 

     onResume(); { 
     super.onResume(); 

     if (prefs.getBoolean("firstrun", true)) { 

       Random r = new Random(); 
       int i1 = r.nextInt(80 - 65) + 65; 

       SharedPreferences sp = getSharedPreferences("your_prefs", Activity.MODE_PRIVATE); 
       SharedPreferences.Editor editor = sp.edit(); 
       editor.putInt("random id", i1); 
       editor.commit(); 


      prefs.edit().putBoolean("firstrun", false).commit(); 

     } 
    } 

     SharedPreferences sp = getSharedPreferences("your_prefs", Activity.MODE_PRIVATE); 
     int myIntValue = sp.getInt("random id", -1); 


     TextView iddd = (TextView) findViewById(R.id.id); 
     iddd.setText(myIntValue); 
     }

但這代碼將無法正常工作...
問題是什麼？我究竟做錯了什麼？

日誌：

09-12 12:27:27.203: E/test(10532): Exception 
09-12 12:27:27.205: E/AndroidRuntime(10532): FATAL EXCEPTION: main 
09-12 12:27:27.205: E/AndroidRuntime(10532): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.hhh/com.example.hhh.MainActivity}: android.content.res.Resources$NotFoundException: String resource ID #0x43 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2306) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2358) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.ActivityThread.access$600(ActivityThread.java:156) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1340) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.os.Handler.dispatchMessage(Handler.java:99) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.os.Looper.loop(Looper.java:153) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.ActivityThread.main(ActivityThread.java:5299) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at java.lang.reflect.Method.invokeNative(Native Method) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at java.lang.reflect.Method.invoke(Method.java:511) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at dalvik.system.NativeStart.main(Native Method) 
09-12 12:27:27.205: E/AndroidRuntime(10532): Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x43 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.content.res.Resources.getText(Resources.java:242) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.widget.TextView.setText(TextView.java:3805) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at com.example.hhh.MainActivity.onCreate(MainActivity.java:78) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.Activity.performCreate(Activity.java:5182) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1081) 
09-12 12:27:27.205: E/AndroidRuntime(10532): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2270) 
09-12 12:27:27.205: E/AndroidRuntime(10532): ... 11 more

來源

2016-09-12 J Doe

請解釋**，但此代碼不起作用** 您的預期結果是什麼，您得到了什麼結果？ – SripadRaj

@SripadRaj它在文本視圖中只顯示任何內容... –

@J Doe Add String valueInt = Integer.toString（myIntValue）; iddd.setText（valueInt）; – Stanojkovic

android.content.res.Resources$NotFoundException: String resource ID #0x43

在

iddd.setText(myIntValue);

使用例如

iddd.setText(String.valueOf(myIntValue));

setText(int)預計會看到資源字符串ID; setText(CharSequence)是你想打電話的人。

來源

2016-09-12 08:01:44 laalto

保存並加載隨機數不起作用

回答

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