首页通知上下滚动效果

package com.liushen.textviewscroll.view; import android.content.Context; import android.graphics.Color; import android.os.Handler; import android.os.Message; import android.util.AttributeSet; import android.util.Log; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.LinearLayout; import android.widget.TextView; import com.liushen.textviewscroll.R; import com.liushen.textviewscroll.entity.Top; import java.util.ArrayList; /** * Created by liushen on 2016/7/13. */ public class ScrollLinearLayout extends LinearLayout { private Animation animationOut; private Animation animationIn; private RoundTextView title; private TextView content; private int index; private boolean scroll; private ArrayList<Top> tops = new ArrayList<>(); private Context mContext; public ScrollLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); mContext = context; initView(); } public ScrollLinearLayout(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; initView(); } public ScrollLinearLayout(Context context) { super(context); mContext = context; initView(); } private void initView() { title = new RoundTextView(mContext); title.setPadding(dip2px(mContext,5),0,dip2px(mContext,5),0); LinearLayout.LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); params.rightMargin = dip2px(mContext,10); title.setTextColor(Color.RED); title.setStrokeColor(Color.RED); content = new TextView(mContext); this.addView(title,params); this.addView(content); } public void setDate(ArrayList<Top> tops) { this.tops = tops; title.setText(tops.get(0).getTitle()); content.setText(tops.get(0).getContent()); } Handler handler = new Handler() { public void handleMessage(Message msg) { initAnim(); animationOut.setAnimationListener(new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { // TODO Auto-generated method stub } @Override public void onAnimationRepeat(Animation animation) { // TODO Auto-generated method stub } @Override public void onAnimationEnd(Animation animation) { title.setText(tops.get(index).getTitle()); content.setText(tops.get(index).getContent()); startAnimation(animationIn); } }); startAnimation(animationOut); super.handleMessage(msg); } }; private void initAnim() { if (animationOut == null) { animationOut = AnimationUtils.loadAnimation(mContext, R.anim.view_out); } if (animationIn == null) { animationIn = AnimationUtils.loadAnimation(mContext, R.anim.view_in); } } public void start() { scroll = true; new Thread(new MyThread()).start(); } public void pause() { scroll = false; } public class MyThread implements Runnable { @Override public void run() { // TODO Auto-generated method stub while (scroll) { try { Log.i("liushen", "scroll"); Thread.sleep(3000); if (index < tops.size() - 1) { index++; } else { index = 0; } Message message = new Message(); handler.sendMessage(message); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } public int dip2px(Context context, float dipValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dipValue * scale + 0.5f); } }