AutoCompleteTextView

自动完成的提供建议的文本

使用方法

//arrays.xml



    
        Chengdu
        Beijing
        Tianjin
        Suzhou
        Shanghai
    

//MainActivity.java
public class MainActivity extends AppCompatActivity {

    private AutoCompleteTextView autoCompleteTextView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.actview);

        autoCompleteTextView = findViewById(R.id.autoCompleteTextView);
        //创建一个适配器
        ArrayAdapter adapter = ArrayAdapter.createFromResource(this,R.array.city_name,android.R.layout.simple_dropdown_item_1line);
        autoCompleteTextView.setAdapter(adapter);
    }
}

//actview.xml




    

android:completionThreshold="1"设置输入几个字符开始提示。