雷达扫描动画

最新推荐文章于 2025-03-14 17:14:41 发布

原创最新推荐文章于 2025-03-14 17:14:41 发布 · 605 阅读

CC 4.0 BY-SA版权

该博客介绍了一个雷达扫描动画的实现过程，通过在`RadarMainActivity`中设置布局、动画效果，包括`RotateAnimation`和`AlphaAnimation`，并使用Handler进行消息传递更新扫描状态。在扫描过程中，模拟了扫描BaseAnimation动画的数量，最终完成扫描显示。

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package com.duguang.baseanimation.ui.imitate;

import android.content.pm.PackageManager;
import android.os.Handler;
import android.os.Message;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.LinearInterpolator;
import android.view.animation.RotateAnimation;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.duguang.baseanimation.R;
import com.duguang.baseanimation.ui.base.BaseActivity;

public class RadarMainActivity extends BaseActivity{

   protected static final String tag = "AntiVirusActivity";
   protected static final int SCAN_LODING = 1;
   protected static final int FINSH_SCAN = 2;
   private ImageView im_scan;
   private ImageView im_dian;
   private TextView tv_lodingApk;
   private TextView tv_count;
   private LinearLayout ll_scanText;
   private ProgressBar pb_loding;
   
   private int count;
   
   private Handler handler = new Handler(){
      public void handleMessage(Message msg) {
         switch (msg.what) {
         case SCAN_LODING:
            tv_lodingApk.setText("正在扫描:第"+count+"个BaseAnimation动画");
            TextView tv = new TextView(RadarMainActivity.this);
            tv.setTextSize(14);
            tv_count.setText("已扫描:"+count+"个BaseAnimation动画");
            ll_scanText.addView(tv,0);
            break;
         case FINSH_SCAN:
            tv_lodingApk.setText("扫描完毕");
            im_scan.clearAnimation();//清除此ImageView身上的动画
            im_dian.clearAnimation();//清除此ImageView身上的动画
            break;
         }
      };
   };
   

   @Override
   public void setView() {
      setContentView(R.layout.activity_imitate_radar);
      
      im_scan = (ImageView) findViewById(R.id.im_scan);
      im_dian = (ImageView) findViewById(R.id.im_dian);
      tv_lodingApk = (TextView) findViewById(R.id.tv_lodingApk);
      ll_scanText = (LinearLayout) findViewById(R.id.ll_scanText);
      pb_loding = (ProgressBar) findViewById(R.id.pb_loding);
      tv_count = (TextView) findViewById(R.id.tv_count);
      
      RotateAnimation animation = new RotateAnimation(0, 359, Animation.RELATIVE_TO_SELF,
            0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
      animation.setDuration(2000);
      animation.setRepeatCount(0);
      animation.setInterpolator(new LinearInterpolator());
      animation.setFillEnabled(true);
      animation.setFillAfter(true);
      animation.setAnimationListener(new Animation.AnimationListener() {
         @Override
         public void onAnimationStart(Animation animation) {

         }

         @Override
         public void onAnimationEnd(Animation animation) {
            im_scan.startAnimation(animation);
         }

         @Override
         public void onAnimationRepeat(Animation animation) {

         }
      });
      im_scan.startAnimation(animation);

      
      AlphaAnimation animation2 = new AlphaAnimation(0.0f, 1.0f);
      animation2.setDuration(3000);
      animation2.setRepeatCount(Animation.INFINITE);
      im_dian.startAnimation(animation2);
      
      count = 0;
      
      fillData();
      
   }

   @Override
   public void initView() {
      // TODO Auto-generated method stub
      
   }

   @Override
   public void setListener() {
      // TODO Auto-generated method stub
      
   }

   /**
    * 初始化数据
    */
   private void fillData() {
      tv_lodingApk.setText("开始准备释放空闲CPU线程");
      new Thread(){
         public void run() {
            PackageManager pm = getPackageManager();
            pb_loding.setMax(177);
            for (int i = 1; i <= 177; i++) {
               Message msg = Message.obtain();
               msg.what = SCAN_LODING;
               handler.sendMessage(msg);
               count =i;
               pb_loding.setProgress(count);
               try {
                  Thread.sleep(100);
               } catch (InterruptedException e) {
                  e.printStackTrace();
               }
            }
            Message msg = Message.obtain();
            msg.what = FINSH_SCAN;
            handler.sendMessage(msg);
         };
      }.start();
      
   }

   
}