android spinner setSelection crashes

Question

所以我試圖設置我的微調的值，所以用戶看到的是什麼是當前值而不是總是有1顯示，但它似乎總是崩潰。我嘗試了各種解決方案，並且總是因爲某種原因而崩潰。任何建議請，我無所適從。

這裏是我的logcat：

java.lang.ArrayIndexOutOfBoundsException: length=35; index=35 
                     at 
java.util.Arrays$ArrayList.get(Arrays.java:3854) 
                     at 
android.widget.ArrayAdapter.getItem(ArrayAdapter.java:349) 
                     at 
android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:405) 
                     at 
android.widget.ArrayAdapter.getView(ArrayAdapter.java:371) 
                     at 
android.widget.Spinner.makeView(Spinner.java:800) 
                     at 
android.widget.Spinner.layout(Spinner.java:748) 
                     at 
android.widget.Spinner.onLayout(Spinner.java:710) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     atandroid.support.constraint.ConstraintLayout.onLayout(ConstraintLayout.java:1197) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     at 
android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) 
                     at 
android.widget.FrameLayout.onLayout(FrameLayout.java:261) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:437) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     at 
android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) 
                     at 
android.widget.FrameLayout.onLayout(FrameLayout.java:261) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     at 
android.widget.LinearLayout.setChildFrame(LinearLayout.java:1741) 
                     at 
android.widget.LinearLayout.layoutVertical(LinearLayout.java:1585) 
                     at 
android.widget.LinearLayout.onLayout(LinearLayout.java:1494) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     at 
android.widget.FrameLayout.layoutChildren(FrameLayout.java:323) 
                     at 
android.widget.FrameLayout.onLayout(FrameLayout.java:261) 
                     at 
com.android.internal.policy.DecorView.onLayout(DecorView.java:887) 
                     at 
android.view.View.layout(View.java:18804) 
                     at 
android.view.ViewGroup.layout(ViewGroup.java:5951) 
                     at 
android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2655) 
                     at 
android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2371) 
                     at 
android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1522) 
                     at 
android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7098) 
                     at 
android.view.Choreographer$CallbackRecord.run(Choreographer.java:927) 
                     at 
android.view.Choreographer.doCallbacks(Choreographer.java:702) 
                     at 
android.view.Choreographer.doFrame(Choreographer.java:638) 
                     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:913) 
                     at 
android.os.Handler.handleCallback(Handler.java:751) 
                     at 
android.os.Handler.dispatchMessage(Handler.java:95) 
                     at 
android.os.Looper.loop(Looper.java:154) 
                     at 
android.app.ActivityThread.main(ActivityThread.java:6682) 
                     at 
java.lang.reflect.Method.invoke(Native Method) 
                     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520) 
                     at 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410) 

這裏是我的代碼：

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_settings); 

maxTimeSpinner = (Spinner)findViewById(R.id.maxTime); 

String[] times = new String[]{"35"}; 

ArrayAdapter<String> times_list = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, times); 

maxTimeSpinner.setAdapter(times_list); 

maxTT = "35"; // this is for testing 

maxTimeSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
     @Override 
     public void onItemSelected(AdapterView<?> parent, View view, 
            int position, long id) { 

      maxTT = parent.getItemAtPosition(position).toString();//Double.parseDouble(sp.getString("maxTT", parent.getItemAtPosition(position).toString())); 
     } 

     @Override 
     public void onNothingSelected(AdapterView<?> parent) { 
      // TODO Auto-generated method stub 
     } 
    }); 

maxTimeSpinner.setSelection(Integer.parseInt(maxTT)); 
} 

Answer 1

你傳入只有一個字符串項組成的數組一個ArrayAdapter。並調用maxTimeSpinner.setSelection（35）。試試maxTimeSpinner.setSelection（0）。索引從0開始，而不是從1開始。