先看看效果：
实现代码：
public class ScrollBanner extends LinearLayout { private TextView mBannerTV1; private TextView mBannerTV2; private Handler handler; private boolean isShow; private int startY1, endY1, startY2, endY2; private Runnable runnable; private List<String> list; private int position = 0; private int offsetY = 100; public ScrollBanner(Context context) { this(context, null); } public ScrollBanner(Context context, AttributeSet attrs) { this(context, attrs, 0); } public ScrollBanner(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); View view = LayoutInflater.from(context).inflate(R.layout.view_scroll_banner, this); mBannerTV1 = (TextView) view.findViewById(R.id.tv_banner1); mBannerTV2 = (TextView) view.findViewById(R.id.tv_banner2); handler = new Handler(); runnable = new Runnable() { @Override public void run() { isShow = !isShow; if (position == list.size()) position = 0; if (isShow) { mBannerTV1.setText(list.get(position++)); } else { mBannerTV2.setText(list.get(position++)); } startY1 = isShow ? 0 : offsetY; endY1 = isShow ? -offsetY : 0; ObjectAnimator.ofFloat(mBannerTV1, "translationY", startY1, endY1).setDuration(300).start(); startY2 = isShow ? offsetY : 0; endY2 = isShow ? 0 : -offsetY; ObjectAnimator.ofFloat(mBannerTV2, "translationY", startY2, endY2).setDuration(300).start(); handler.postDelayed(runnable, 3000); } }; } public List<String> getList() { return list; } public void setList(List<String> list) { this.list = list; } public void startScroll() { handler.post(runnable); } public void stopScroll() { handler.removeCallbacks(runnable); } }
view_scroll_banner.xml：
<"1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" android:padding="10dp"> <TextView android:id="@+id/tv_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:text="公告" android:textColor="#e76712" android:textSize="16sp" /> <View android:id="@+id/view_divider" android:layout_width="1dp" android:layout_height="match_parent" android:layout_marginLeft="10dp" android:layout_marginRight="10dp" android:layout_toRightOf="@id/tv_title" android:background="#DDDDDD" /> <TextView android:id="@+id/tv_banner1" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_toRightOf="@+id/view_divider" android:ellipsize="end" android:singleLine="true" android:text="热烈欢迎领导光临" /> <TextView android:id="@+id/tv_banner2" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_toRightOf="@+id/view_divider" android:ellipsize="end" android:singleLine="true" android:text="喜庆国庆欢乐大酬宾" /> </RelativeLayout>
使用方法：
scrollBanner.setList(list); scrollBanner.startScroll();
以上就是本文的全部内容，希望对大家学习Android软件编程有所帮助，也希望大家多多支持查字典教程网。
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