android自动提示功能——autoCompleteTextView（一）

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android自动提示功能——autoCompleteTextView

类似百度搜索时能够自动弹出的自动完成框。

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/mainRelativeLayout"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="xueyou.xueyoucto.com.androidviews.MainActivity">    <TextView        android:id="@+id/textView"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="选择城市："        android:textSize="30sp"        android:layout_marginTop="39dp"        android:layout_gravity="center"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true" />    <AutoCompleteTextView        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:id="@+id/autoCompleteTextView"        android:layout_marginTop="25dp"        android:layout_below="@+id/textView"        android:layout_centerHorizontal="true" /></RelativeLayout>

package xueyou.xueyoucto.com.androidviews;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.KeyEvent;import android.view.MotionEvent;import android.view.View;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;import android.widget.Button;import android.widget.CompoundButton;import android.widget.EditText;import android.widget.RadioButton;import android.widget.Switch;import android.widget.Toast;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    private final String Tag = "MAINACTIVITY";    private AutoCompleteTextView textView;    private ArrayAdapter<String> adapter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        textView = (AutoCompleteTextView) this.findViewById(R.id.autoCompleteTextView);        adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,getDataSource());        textView.setAdapter(adapter);    }    public List<String> getDataSource() {        List<String> tempList = new ArrayList<>();        tempList.add("aaaaaa");        tempList.add("aaaaa");        tempList.add("aaaa");        tempList.add("aaa");        tempList.add("aa");        tempList.add("a1");        return tempList;    }}

运行结果：

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