1.目标效果
旋转动画+病毒查杀效果
2.xml布局文件
(1)activity_kill_virus.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".KillVirusActivity"> <TextView style="@style/TitleStyle" android:text="手机杀毒" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@mipmap/ic_scanner_malware" /> <ImageView android:id="@+id/ivKV_scaning" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@mipmap/act_scanning_03" /> </RelativeLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center"> <TextView android:id="@+id/tvKV_scaning" android:text="扫描过程" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <!--自定义进度条图片(3种类型)--> <ProgressBar android:id="@+id/pbKV_bar" android:progressDrawable="@drawable/progress_bg" style="@style/Base.Widget.AppCompat.ProgressBar.Horizontal" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout> </LinearLayout> <!--ScrollView只有一个直接子节点--> <ScrollView android:layout_width="match_parent" android:layout_height="wrap_content"> <LinearLayout android:id="@+id/ll_add_textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"> </LinearLayout> </ScrollView> </LinearLayout>
(2)自定义样式的进度条
<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <!--进度条为0，使用的图片--> <item android:id="@android:id/background" android:drawable="@drawable/security_progress_bg"/> <!--进度条为0-100%之间，使用的图片--> <item android:id="@android:id/secondaryProgress" android:drawable="@drawable/security_progress"/> <!--进度条为100%时，使用的图片--> <item android:id="@android:id/progress" android:drawable="@drawable/security_progress"/> </layer-list>
3.java后台
package com.example.administrator.test62360safeguard; import android.annotation.SuppressLint; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.Signature; import android.graphics.Color; import android.os.Handler; import android.os.Message; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.animation.Animation; import android.view.animation.RotateAnimation; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ProgressBar; import android.widget.TextView; import com.example.administrator.test62360safeguard.Utils.MD5Util; import com.example.administrator.test62360safeguard.engine.VirusDao; import java.util.ArrayList; import java.util.List; import java.util.Random; public class KillVirusActivity extends AppCompatActivity { ImageView ivKV_scaning; TextView tvKV_scaning; ProgressBar pbKV_bar; LinearLayout ll_add_textview; protected static final int SCANING = 100; protected static final int SCAN_FINISH = 101; private List<ScanResultInfoBean> virusScanInfoList; private int index = 0; @SuppressLint("HandlerLeak") private Handler handler = new Handler(){ public void handleMessage(android.os.Message msg) { switch (msg.what) { case SCANING: //1,显示正在扫描应用的名称 ScanResultInfoBean info = (ScanResultInfoBean)msg.obj; tvKV_scaning.setText(info.name); //2,在线性布局中添加一个正在扫描应用的TextView TextView textView = new TextView(getApplicationContext()); if(info.isVirus){ //是病毒 textView.setTextColor(Color.RED); textView.setText("发现病毒:"+info.name); }else{ //不是病毒 textView.setTextColor(Color.BLACK); textView.setText("扫描安全:"+info.name); } ll_add_textview.addView(textView, 0); //参数2：设置为0，使得控件放在LinearLayout的顶部 break; case SCAN_FINISH: tvKV_scaning.setText("扫描完成"); //停止真正执行的旋转动画 ivKV_scaning.clearAnimation(); break; } } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_kill_virus); initUI(); initAnimation(); checkVirus(); } /** * 病毒扫描过程 */ private void checkVirus() { //耗时操作，开启一个线程 new Thread(){ public void run() { //1.获取数据库中所有的病毒的md5码 List<String> virusList = VirusDao.getVirusList(); //获取手机上面的所有应用程序签名文件的md5码 //2.1获取包管理者对象 PackageManager pm = getPackageManager(); //2.2获取所有应用程序签名文件(PackageManager.GET_SIGNATURES 已安装应用的签名文件+) //PackageManager.GET_UNINSTALLED_PACKAGES 卸载完了的应用,残余的文件 List<PackageInfo> packageInfoList = pm.getInstalledPackages( PackageManager.GET_SIGNATURES + PackageManager.GET_UNINSTALLED_PACKAGES); //2.3创建记录病毒的集合 virusScanInfoList = new ArrayList<>(); //设置进度条的最大值 pbKV_bar.setMax(packageInfoList.size()); //3.遍历应用集合 for (PackageInfo packageInfo : packageInfoList) { //获取签名文件的数组 Signature[] signatures = packageInfo.signatures; //获取签名文件数组的第一位,然后进行md5,将此md5和数据库中的md5比对 Signature signature = signatures[0]; String string = signature.toCharsString(); //32位字符串,16进制字符(0-f) String encoder = MD5Util.encoder(string); //创建内部类ScanResultInfoBean的javabean用来存储一个应用经过扫描后的某些属性 ScanResultInfoBean scanResultInfoBean = new ScanResultInfoBean(); //4,比对应用是否为病毒 if(virusList.contains(encoder)){ //5.记录病毒 scanResultInfoBean.isVirus = true; virusScanInfoList.add(scanResultInfoBean); }else{ scanResultInfoBean.isVirus = false; } //6,维护对象的包名,以及应用名称 scanResultInfoBean.packageName = packageInfo.packageName; scanResultInfoBean.name = packageInfo.applicationInfo.loadLabel(pm).toString(); //7.在扫描的过程中,需要更新进度条 index++; pbKV_bar.setProgress(index); //给当前的子线程设置一段睡眠时间，模拟病毒扫描过程(即让扫描过程不要太快，达到肉眼可见的效果) try { Thread.sleep(50+new Random().nextInt(100)); } catch (InterruptedException e) { e.printStackTrace(); } //8.在子线程中发送消息,告知主线程更新UI(1:顶部扫描应用的名称2:扫描过程中往线性布局中添加view) Message msg = Message.obtain(); msg.what = SCANING; msg.obj = scanResultInfoBean; handler.sendMessage(msg); } Message msg = Message.obtain(); msg.what = SCAN_FINISH; handler.sendMessage(msg); } }.start(); } /** * 此javabean用来记录扫描结果中需要存储的应用相关信息 * isVirus 应用是否为病毒 * packageName 包名 * name 应用名称 */ class ScanResultInfoBean{ public boolean isVirus; public String packageName; public String name; } private void initAnimation() { //参数1,2设置旋转的角度 RotateAnimation rotateAnimation = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); rotateAnimation.setDuration(1000); //设置动画一直旋转 rotateAnimation.setRepeatMode(Animation.INFINITE); //保存动画执行结束后的状态 rotateAnimation.setFillAfter(true); //开始执行动画 ivKV_scaning.startAnimation(rotateAnimation); } private void initUI() { ivKV_scaning=findViewById(R.id.ivKV_scaning); tvKV_scaning=findViewById(R.id.tvKV_scaning); pbKV_bar=findViewById(R.id.pbKV_bar); ll_add_textview=findViewById(R.id.ll_add_textview); } }
4.效果图
