1. 写一个类继承TextView
代码如下
packagecom.example.tt;
importandroid.content.Context;
importandroid.graphics.Rect;
importandroid.util.AttributeSet;
importandroid.widget.TextView;
publicclassScrollingTextViewextendsTextView {
publicScrollingTextView(Context context, AttributeSet attrs,intdefStyle) {
super(context, attrs, defStyle);
}
publicScrollingTextView(Context context, AttributeSet attrs) {
super(context, attrs);
}
publicScrollingTextView(Context context) {
super(context);
}
@Override
protectedvoidonFocusChanged(booleanfocused,intdirection, Rect previouslyFocusedRect) {
if(focused)
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
@Override
publicvoidonWindowFocusChanged(booleanfocused) {
if(focused)
super.onWindowFocusChanged(focused);
}
@Override
publicbooleanisFocused() {
returntrue;
}
}
2. xml 中增加属性
代码如下
android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="80dip" android:layout_marginBottom="25dip" android:textSize="25sp" android:singleLine="true" android:textColor="@android:color/black" android:ellipsize="marquee" android:focusable="true" android:marqueeRepeatLimit="marquee_forever" android:focusableInTouchMode="true" android:scrollHorizontally="true" android:text="这才是真正的文字跑马灯效果,文字移动速度,文字移动方向,文字移动的样式,动画等等……" android:background="#2FFFFFFF"/>