ContextMenu从右到左

Question

我有一个contextMenu，它由编辑和删除两个项目组成！但是因为我正在写我的国家，所以language...Items应该是正确的对齐！下面是我的代码。请指导me.Thank！

public class ListActivity extends AppCompatActivity {
ListView lst_data;
DicDBAdapter dicDBAdapter;
Dic dic;

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

    lst_data = (ListView) findViewById(R.id.lst_data);
    dicDBAdapter = new DicDBAdapter(getApplicationContext());
    ArrayList<String> arrayList = dicDBAdapter.getdata();
    ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getApplicationContext(),
            android.R.layout.simple_dropdown_item_1line,
            arrayList);
    lst_data.setAdapter(arrayAdapter);
    registerForContextMenu(lst_data);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    getMenuInflater().inflate(R.menu.context, menu);


}

}

​

Answer 1

用下面的代码创建一个布局文件。

<TextView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@android:id/text1"
    style="?android:attr/dropDownItemStyle"
    android:textAppearance="?android:attr/textAppearanceLargePopupMenu"
    android:singleLine="true"
    android:layout_width="match_parent"
    android:layout_height="?android:attr/listPreferredItemHeight"
    android:gravity="start"
    android:ellipsize="marquee" />

在创建数组适配器时，将此布局作为项传递。

ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getApplicationContext(),
            R.layout.new_layout,
            arrayList);

Answer 2

您可以在listView中更改layoutDirection

<ListView
    android:layout_width="wrap_content"
    android:layoutDirection="rtl"
    android:layout_height="wrap_content"/>