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

android自动提示功能——autoCompleteTextView

<?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;
}
}