java - AlertDialog 生成器 OnItemSelectedListener

Question

我有一个关于 AlertDialog Builder 的小问题，但很烦人。我想在自定义的 AlertDialog 中处理项目选择，但 OnItemSelectedListener 似乎没有选择我的点击。

自定义对话框:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="200dp"
android:layout_height="120dp"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:background="#AAFFFFFF"
android:orientation="vertical">


<TextView
    android:text="English"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:id="@+id/lang_english"
    android:gravity="center_vertical"
    android:background="@color/borders"
    android:paddingLeft="10dp"
    android:onClick="onLanguageButtonClicked" />
<View
    android:layout_height="1dp"
    android:layout_width="match_parent"
    android:background="#000000" />

<TextView
    android:text="عربى"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:id="@+id/lang_arabic"
    android:gravity="center_vertical"
    android:background="@color/borders"
    android:paddingRight="10dp"
    android:onClick="onLanguageButtonClicked" />

<View
    android:layout_height="1dp"
    android:layout_width="match_parent"
    android:background="#2e2e2e"/>

<TextView
    android:text="کوردی "
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:id="@+id/lang_kurdish"
    android:gravity="center_vertical"
    android:background="@color/borders"
    android:paddingRight="10dp"
    android:onClick="onLanguageButtonClicked" />

</LinearLayout>

单击按钮我打开对话框并处理它:

public void onClickDrawer(View view) {
    switch (view.getId()) {
        case R.id.button_account_language:
            handleLanguageDialog();
            break;
        case R.id.button_account_currency:
            handleCurrencyDialog();
            break;
        default:
            break;
    }
}

处理程序:

private void handleLanguageDialog() {
    final AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setView(R.layout.dialog_language);
    builder.setOnItemSelectedListener(new      AdapterView.
    OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, 
        int position, long id) {
            SharedPreferences preferences =  PreferenceManager
            .getDefaultSharedPreferences(getApplicationContext());
            Log.i("info", "pressed" + Integer.toString(position));
            restartInLocale(new Locale(preferences.getString("locale","")));
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });
    builder.setNegativeButton("CANCEL", new   DialogInterface
    .OnClickListener() {
        @Override
        public void onClick(DialogInterface dialogInterface, int i) {

        }
        });
    builder.create().show();
}

这是正确的方法还是我遗漏了什么？

提前致谢!

Answer 1

我不认为这是正确的方法，你让它变得非常复杂。如果我没看错，那么您正在尝试显示语言选择对话框，您应该按照以下给定的步骤操作。

1. 在 strings.xml 资源文件中创建字符串数组

   <string-array name="lang">
       <item>English</item>
       <item>عربى</item>
   </string-array>
   

2. 当你想显示警告对话框时写下下面的代码

   private void handleLanguageDialog() {
   AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
   builder.setTitle(R.string.pick_color)
      .setItems(R.array.lang, new DialogInterface.OnClickListener()                 {
          public void onClick(DialogInterface dialog, int which) {
          // The 'which' argument contains the index position
          // of the selected item
          switch(which)
          {
             case 0:// English
                 break;
             case 1:// عربى
                 break;
          }
      }
   });
   return builder.create();
   }
   

这是在警告对话框中显示语言列表的最简单方法，没有任何肯定或否定按钮。