小编Iya*_*d K的帖子

我正在尝试创建一个AlertDialog,当我在listview中单击一个项目时会打开它.但是,AlertDialog的构造函数需要一个上下文,但"this"将不起作用,因为它指向匿名函数.我尝试了"getApplicationContext()"和"getBaseContext()",但应用程序崩溃了.

有任何想法吗？

    // Open stored preferences page
    SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);

    // Load stored data key/value pairs
    Map<String, String> savedData = (Map<String, String>) settings.getAll();

    // Populate the list view in the activity with the stored data keys
    ListView lSavedData = (ListView) findViewById(R.id.lDataList);

    ArrayAdapter arrAdap = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, savedData.keySet().toArray(new String[0]) );
    lSavedData.setAdapter( arrAdap );

    lSavedData.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            // Prepare a function selection menu for when the user …