我把走馬燈效果和自動匹配放在一個程序里卻沒法運行，求助大神們?。。?/h1>

布局部分：
<?xml?version="1.0"?encoding="utf-8"?>
<LinearLayout?xmlns:android="http://schemas.android.com/apk/res/android"
????android:layout_width="match_parent"
????android:layout_height="match_parent"
????android:gravity="center_horizontal"
????android:orientation=?"vertical">

????<com.example.lenovo.learn.Marquee
????????android:id="@+id/textView"
????????android:layout_width="wrap_content"
????????android:layout_height="wrap_content"
????????android:singleLine="true"
????????android:ellipsize="marquee"
????????android:focusable="true"
????????android:focusableInTouchMode="true"
????????android:text="@string/layout1"?/>

????<AutoCompleteTextView
????????android:id="@+id/autoCompleteTextView"
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content"
????????android:completionThreshold="2"
????????android:hint="請輸入搜索內容"?/>

????<Button
????????android:id="@+id/button"
????????android:layout_width="wrap_content"
????????android:layout_height="wrap_content"
????????android:text="Button"?/>
</LinearLayout>

Marquee部分：
package?com.example.lenovo.learn;

import?android.content.Context;
import?android.util.AttributeSet;
import?android.widget.TextView;

public?class?Marquee?extends?TextView?{
????public?Marquee(Context?context)?{
????????super(context);
????}

????public?Marquee(Context?context,?AttributeSet?attrs)?{
????????super(context,?attrs);
????}

????public?Marquee(Context?context,?AttributeSet?attrs,?int?defStyleAttr)?{
????????super(context,?attrs,?defStyleAttr);
????}
??public?boolean?isFocused(){
??????return?true;
??}

}

主程序：
package?com.example.lenovo.learn;

import?android.support.v7.app.AppCompatActivity;
import?android.os.Bundle;
import?android.view.View;
import?android.widget.ArrayAdapter;
import?android.widget.AutoCompleteTextView;
import?android.widget.Button;
import?android.widget.Toast;

public?class?MainActivityLearn?extends?AppCompatActivity?{
????private?Button?loginButton;
????private?AutoCompleteTextView?acTextView;
????private?String[]?res={"beijing1","beijing2","beijing3","guangzhou1","shanghai","shandong"};

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

????????/*
????????1.初始化控件
????????2.設置監(jiān)聽器，實現(xiàn)效果。
?????????*/
????????loginButton?=(Button)?findViewById(R.id.button);
????????loginButton.setOnClickListener(new?View.OnClickListener()?{
????????????@Override
????????????public?void?onClick(View?v)?{
????????????????System.out.println("來玩虛榮?。?！來玩虛榮?。?！");
????????????????Toast.makeText(MainActivityLearn.this,?"來玩虛榮?。。硗嫣摌s?。。?,?Toast.LENGTH_SHORT).show();
????????????}
????????});


????????//初始化控件
????????acTextView?=?(AutoCompleteTextView)?findViewById(R.id.autoCompleteTextView);
????????//適配器,初始化數(shù)據(jù)源
????????ArrayAdapter<String>?adapter=new?ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,res);
????????//綁定方法
????????acTextView.setAdapter(adapter);
????}


}

最后在模擬機中運行的時候，一開始是正常的，但一旦點擊文本框準備輸入的時候（選中文本框的時候），上面的走馬燈效果就會消失，就是停住了不動了，請教各位大神是什么地方出現(xiàn)了問題，求解答，要是有解決方案就更好了，感激。