Android-ListView

1

首先在布局文件中加入ListView控件

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ListView
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>

在活动文件中，添加一个数组作为数据，通过ArrayAdapter将数组信息传递给ListView控件。将其泛型指定为string，传入上下文，id，数据。最后将适配器传递进ListView。

public class MainActivity extends AppCompatActivity {

    private  String[] data={"A","B","C","D","E","F","G","H","I","G","K","L","M","N","P",
    "Q"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ArrayAdapter<String>adapter=new ArrayAdapter<String>(
                MainActivity.this,android.R.layout.simple_list_item_1,data);
        ListView listView=(ListView)findViewById(R.id.list_view);
        listView.setAdapter(adapter);
    }
}