-1
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。android spinner setSelection crashes
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));
}
好的,我真的想通了。在我的原始列表中有35個值,我試圖將它設置爲第35個值(實際上是34)...謝謝我只是有一個巨大的頭腦空白。 – Jayce
我在'spinTime.setSelection(0)的某些設備(v4.4)上有類似的bug;'致命異常錯誤:java.lang.NullPointerException at com.bookhaircut.barbarshop.ServiceFragmentList $ StoreService.onPostExecute(ServiceFragmentList。 Java的:588)' – aashish