手机杀毒进度条特效

public class MainActivity extends Activity {

    private ImageView iv_main_scan;
    private TextView tv_main_scan;
    private ProgressBar pb_main_scan;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        iv_main_scan = (ImageView) findViewById(R.id.iv_main_scan);
        tv_main_scan = (TextView) findViewById(R.id.tv_main_scan);
        pb_main_scan = (ProgressBar) findViewById(R.id.pb_main_scan);
        
        //1. 显示扫描动画
        showScanAnimation();
        
        //2. 扫描,并显示扫描进度
        scan();
    }

    /**
     * 扫描,并显示扫描进度
     */
    private void scan() {
        //启动异步任务做
        new AsyncTask<Void, Void, Void>() {

            //1. 主线程, 显示提示视图
            protected void onPreExecute() {
                tv_main_scan.setText("手机杀毒引擎正在扫描中...");
            }
            
            //2. 分线程, 做长时间的工作(扫描应用)
            @Override
            protected Void doInBackground(Void... params) {
                int appCount = 60;
                //设置进度条的最大值
                pb_main_scan.setMax(appCount);
                for(int i=0;i<appCount;i++) {
                    SystemClock.sleep(40);
                    //扫描完成一个
                    //发布进度
                    publishProgress();
                }
                return null;
            }
            
            //在主线程执行, 更新进度
            protected void onProgressUpdate(Void[] values) {
                pb_main_scan.incrementProgressBy(1);//增加1
                //pb_main_scan.setProgress(pb_main_scan.getProgress()+1);
            }
            
            //3. 主线程, 更新界面
            protected void onPostExecute(Void result) {
                //隐藏进度条
                pb_main_scan.setVisibility(View.GONE);
                //更新文本
                tv_main_scan.setText("扫描完成, 未发现病毒应用, 请放心使用!");
                //停止扫描动画
                iv_main_scan.clearAnimation();
            }
        }.execute();
    }

    /**
     * 显示扫描动画
     * iv_main_scan的旋转动画 
     */
    private void showScanAnimation() {
        //创建动画对象
        RotateAnimation animation = new RotateAnimation(0, 360, 
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
        //设置
        animation.setDuration(1000);
        animation.setRepeatCount(Animation.INFINITE);
        animation.setInterpolator(new LinearInterpolator());
        //启动
        iv_main_scan.startAnimation(animation);
    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="手机杀毒" 
        android:background="#FFCFCE"
        android:textSize="25sp"
        android:gravity="center"
        android:padding="5dp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <FrameLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent" 
            android:background="@drawable/ic_scanner_malware">

            <ImageView
                android:id="@+id/iv_main_scan"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/act_scanning_03" />

        </FrameLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" 
            android:gravity="center_vertical"
            android:layout_marginLeft="10dp">

            <TextView
                android:id="@+id/tv_main_scan"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="TextView" />

            <ProgressBar
                android:id="@+id/pb_main_scan"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" 
                android:progressDrawable="@drawable/my_progress"/>

        </LinearLayout>

    </LinearLayout>

</LinearLayout>

my_progress.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

    <!-- 背景图片 -->
    <item
        android:id="@android:id/background"
        android:drawable="@drawable/security_progress_bg">
    </item>
    <!-- 进度图片 -->
    <item
        android:id="@android:id/progress"
        android:drawable="@drawable/security_progress">
    </item>

</layer-list>