Android积分签到上移消失动画效果

import android/57003.html">android.os.Handler;import android.os.Message;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.text.TextUtils;import android.view.View;import android.view.animation.AlphaAnimation;import android.view.animation.AnimationSet;import android.view.animation.TranslateAnimation;import android.widget.Button;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends AppCompatActivity { private ImageView mSignIn; private ImageView redDot; private TextView signSuccess; private AnimationSet set; private String isSign; private TextView textView; private Handler mHandler = new Handler() { private int i=100; public void handleMessage(android.os.Message msg) {  switch (msg.what) {  case 1:// 签到   i = i+100;   mSignIn.setImageResource(R.drawable.icon_signed);//已签到   redDot.setVisibility(View.GONE);//圆点隐藏   // start平移和渐变动画   signSuccess.startAnimation(set);   signSuccess.setVisibility(View.GONE);   textView.setText("当前积分:"+i);   // mSignIn.setClickable(false);   break;  default:   break;  } } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mSignIn = (ImageView) findViewById(R.id.iv_sign);//签到 redDot = (ImageView) findViewById(R.id.iv_redpoint);//显示未签到的红圆点 textView = (TextView) findViewById(R.id.tv_score);//积分 //签到添加积分动画文本 signSuccess = (TextView) findViewById(R.id.iv_sign_success); // 　获取签到成功图片的位置 int left = signSuccess.getLeft(); int top = signSuccess.getTop(); // 创建平移和渐变的动画集合 // 定义一个平移动画对象 TranslateAnimation translate = new TranslateAnimation(left, left, top, top - 100); translate.setDuration(2000); //translate.setRepeatCount(1); // 渐变动画 AlphaAnimation alpha = new AlphaAnimation(1, 0); alpha.setDuration(2000); alpha.setFillAfter(true); // 创建动画集合，将平移动画和渐变动画添加到集合中，一起start set = new AnimationSet(false); set.addAnimation(translate); set.addAnimation(alpha); } /** * 签到 * @param v */ public void signIn(View v) {   // if (!TextUtils.isEmpty(isSign)) {    // if ("0".equals(isSign)) {// 0代表未签到    signSuccess.setVisibility(View.VISIBLE);    // mHandler.sendEmptyMessage(1);    Message message = new Message();    message.what = 1;    mHandler.sendMessage(message);    // }   // } }}

/** * Constructor to use when building a TranslateAnimation from code * * @param fromXDelta Change in X coordinate to apply at the start of the * animation * @param toXDelta Change in X coordinate to apply at the end of the * animation * @param fromYDelta Change in Y coordinate to apply at the start of the * animation * @param toYDelta Change in Y coordinate to apply at the end of the * animation */ public TranslateAnimation(float fromXDelta, float toXDelta, float fromYDelta, float toYDelta) { mFromXValue = fromXDelta; mToXValue = toXDelta; mFromYValue = fromYDelta; mToYValue = toYDelta; }