简单实现Android滚动公告栏-创新互联
本文实现的效果,是一个滚动的公告栏,是这样的:
创新互联自2013年起,是专业互联网技术服务公司,拥有项目网站制作、成都网站设计网站策划,项目实施与项目整合能力。我们以让每一个梦想脱颖而出为使命,1280元兴庆做网站,已为上家服务,为兴庆各地企业和个人服务,联系电话:13518219792可以看到这个公告栏一方面是滚动,另外一方面是可点击。
实现的思路:
1.textView放在ViewFlipper中实现滑动效果(可设置左右、或者上下滚动),很明显这应该是自定义view;
2.利用textView的点击事件即可实现点击;
OK,先看看自定义view的代码:
public class MarqueeTextView extends LinearLayout { private Context mContext; private ViewFlipper viewFlipper; private View marqueeTextView; private String[] textArrays; private MarqueeTextViewClickListener marqueeTextViewClickListener; public MarqueeTextView(Context context) { super(context); mContext = context; initBasicView(); } public MarqueeTextView(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; initBasicView(); } public void setTextArraysAndClickListener(String[] textArrays, MarqueeTextViewClickListener marqueeTextViewClickListener) {//1.设置数据源;2.设置监听回调(将textView点击事件传递到目标界面进行操作) this.textArrays = textArrays; this.marqueeTextViewClickListener = marqueeTextViewClickListener; initMarqueeTextView(textArrays, marqueeTextViewClickListener); } public void initBasicView() {//加载布局,初始化ViewFlipper组件及效果 marqueeTextView = LayoutInflater.from(mContext).inflate(R.layout.marquee_textview_layout, null); LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); addView(marqueeTextView, layoutParams); viewFlipper = (ViewFlipper) marqueeTextView.findViewById(R.id.viewFlipper); viewFlipper.setInAnimation(AnimationUtils.loadAnimation(mContext, R.anim.slide_in_bottom));//设置上下的动画效果(自定义动画,所以改左右也很简单) viewFlipper.setOutAnimation(AnimationUtils.loadAnimation(mContext, R.anim.slide_out_top)); viewFlipper.startFlipping(); } public void initMarqueeTextView(String[] textArrays, MarqueeTextViewClickListener marqueeTextViewClickListener) { if (textArrays.length == 0) { return; } int i = 0; viewFlipper.removeAllViews(); while (i < textArrays.length) { TextView textView = new TextView(mContext); textView.setText(textArrays[i]); textView.setOnClickListener(marqueeTextViewClickListener); LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); viewFlipper.addView(textView, lp); i++; } } public void releaseResources() { if (marqueeTextView != null) { if (viewFlipper != null) { viewFlipper.stopFlipping(); viewFlipper.removeAllViews(); viewFlipper = null; } marqueeTextView = null; } } }
文章标题:简单实现Android滚动公告栏-创新互联
网页链接:http://myzitong.com/article/hdhod.html