Android动态滚动文本显示控件优化实现

重点&＃xff1a;焦点的选择&＃xff08;返回true使得焦点不被选择&＃xff09;

MarqueeText.java

package com.example.demo02;

import android.content.Context;
import android.util.AttributeSet;
import android.view.ViewDebug.ExportedProperty;
import android.widget.TextView;

public class MarqueeText extends TextView{

public MarqueeText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
// TODO Auto-generated constructor stub
}

public MarqueeText(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}

public MarqueeText(Context context) {
super(context);
// TODO Auto-generated constructor stub
}

&＃64;Override
&＃64;ExportedProperty(category &＃61; "focus")
public boolean isFocused() {
// TODO Auto-generated method stub
return true;
}

}

activity_main.xml

xmlns:tools&＃61;"http://schemas.android.com/tools"
android:layout_width&＃61;"match_parent"
android:layout_height&＃61;"match_parent"
android:paddingBottom&＃61;"&＃64;dimen/activity_vertical_margin"
android:paddingLeft&＃61;"&＃64;dimen/activity_horizontal_margin"
android:paddingRight&＃61;"&＃64;dimen/activity_horizontal_margin"
android:paddingTop&＃61;"&＃64;dimen/activity_vertical_margin"
tools:context&＃61;"com.example.demo02.MainActivity" >

android:id&＃61;"&＃64;&＃43;id/textview1"
android:layout_width&＃61;"fill_parent"
android:layout_height&＃61;"wrap_content"
android:singleLine&＃61;"true"
android:ellipsize&＃61;"marquee"
android:focusable&＃61;"true"
android:focusableInTouchMode&＃61;"true"
android:text&＃61;"&＃64;string/hello_world" />

android:layout_below&＃61;"&＃64;&＃43;id/textview1"
android:layout_marginTop&＃61;"10dp"
android:id&＃61;"&＃64;&＃43;id/textview2"
android:layout_width&＃61;"fill_parent"
android:layout_height&＃61;"wrap_content"
android:singleLine&＃61;"true"
android:ellipsize&＃61;"marquee"
android:focusable&＃61;"true"
android:focusableInTouchMode&＃61;"true"
android:text&＃61;"&＃64;string/hello_world" />