TextView实现跑马灯效果，不用获取焦点

TextView实现跑马灯效果，不用获取焦点

 package com.androidbears.components;

 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.widget.TextView;

 public class ScrollingTextView extends TextView {

     public ScrollingTextView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         init();
     }

     public ScrollingTextView(Context context, AttributeSet attrs) {
         super(context, attrs);
         init();
     }

     public ScrollingTextView(Context context) {
         super(context);
         init();
     }
     @Override
     protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
         if(focused)
             super.onFocusChanged(focused, direction, previouslyFocusedRect);
     }

     @Override
     public void onWindowFocusChanged(boolean focused) {
         if(focused)
             super.onWindowFocusChanged(focused);
     }


     @Override
     public boolean isFocused() {
         return true;
     }

     //add by laomo
     private void init(){
   setEllipsize(TruncateAt.MARQUEE);//对应android:ellipsize="marquee"
   setMarqueeRepeatLimit(-1);//对应android:marqueeRepeatLimit="marquee_forever"
   setSingleLine();//等价于setSingleLine(true）
     }
 }

然后在xml中用自定义的view

 <com.androidbears.components.ScrollingTextView
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
           android:text="@string/showmsg"/>