1.指定动画一直旋转
rotateAnimation.setRepeatCount(RotateAnimation.INFINITE);
android:repeatCount 重复的次数，默认为0，必须是int，可以为-1表示不停止
1 public class AnitVirusActivity extends Activity {
2 protected static final int SCANING = 100;
3
4 protected static final int SCAN_FINISH = 101;
5
6 private ImageView iv_scanning;
7 private TextView tv_name;
8 private ProgressBar pb_bar;
9 private LinearLayout ll_add_text;
10 private int index = 0;
11 private List<ScanInfo> mVirusScanInfoList;
12 private Handler mHandler = new Handler(){
13 public void handleMessage(android.os.Message msg) {
14 switch (msg.what) {
15 case SCANING:
16 //1,显示正在扫描应用的名称
17 ScanInfo info = (ScanInfo)msg.obj;
18 tv_name.setText(info.name);
19 //2,在线性布局中添加一个正在扫描应用的TextView
20 TextView textView = new TextView(getApplicationContext());
21 if(info.isVirus){
22 //是病毒
23 textView.setTextColor(Color.RED);
24 textView.setText("发现病毒:"+info.name);
25 }else{
26 //不是病毒
27 textView.setTextColor(Color.BLACK);
28 textView.setText("扫描安全:"+info.name);
29 }
30 ll_add_text.addView(textView, 0);
31 break;
32 case SCAN_FINISH:
33 tv_name.setText("扫描完成");
34 //停止真正执行的旋转动画
35 iv_scanning.clearAnimation();
36 //告知用户卸载包含了病毒的应用
37 unInstallVirus();
38 break;
39 }
40 };
41 };
42
43
44
45 @Override
46 protected void onCreate(Bundle savedInstanceState) {
47 super.onCreate(savedInstanceState);
48 setContentView(R.layout.activity_anit_virus);
49
50 initUI();
51 initAnimation();
52 checkVirus();
53 }
54
55 protected void unInstallVirus() {
56 for(ScanInfo scanInfo:mVirusScanInfoList){
57 String packageName = scanInfo.packageName;
58 //源码
59 Intent intent = new Intent("android.intent.action.DELETE");
60 intent.addCategory("android.intent.category.DEFAULT");
61 intent.setData(Uri.parse("package:"+packageName));
62 startActivity(intent);
63 }
64 }
65
66 private void checkVirus() {
67 new Thread(){
68 public void run() {
69 //获取数据库中所有的病毒的md5码
70 List<String> virusList = VirusDao.getVirusList();
71 //获取手机上面的所有应用程序签名文件的md5码
72 //1.获取包管理者对象
73 PackageManager pm = getPackageManager();
74 //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+)
75 //PackageManager.GET_UNINSTALLED_PACKAGES 卸载完了的应用,残余的文件
76 List<PackageInfo> packageInfoList = pm.getInstalledPackages(
77 PackageManager.GET_SIGNATURES + PackageManager.GET_UNINSTALLED_PACKAGES);
78 //创建记录病毒的集合
79
80 mVirusScanInfoList = new ArrayList<ScanInfo>();
81
82 //记录所有应用的集合
83 List<ScanInfo> scanInfoList = new ArrayList<ScanInfo>();
84
85 //设置进度条的最大值
86 pb_bar.setMax(packageInfoList.size());
87
88 //3.遍历应用集合
89 for (PackageInfo packageInfo : packageInfoList) {
90 ScanInfo scanInfo = new ScanInfo();
91 //获取签名文件的数组
92 Signature[] signatures = packageInfo.signatures;
93 //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
94 Signature signature = signatures[0];
95 String string = signature.toCharsString();
96 //32位字符串,16进制字符(0-f)
97 String encoder = Md5Util.encoder(string);
98 //4,比对应用是否为病毒
99 if(virusList.contains(encoder)){
100 //5.记录病毒
101 scanInfo.isVirus = true;
102 mVirusScanInfoList.add(scanInfo);
103 }else{
104 scanInfo.isVirus = false;
105 }
106 //6,维护对象的包名,以及应用名称
107 scanInfo.packageName = packageInfo.packageName;
108 scanInfo.name = packageInfo.applicationInfo.loadLabel(pm).toString();
109 scanInfoList.add(scanInfo);
110 //7.在扫描的过程中,需要更新进度条
111 index++;
112 pb_bar.setProgress(index);
113
114 try {
115 Thread.sleep(50+new Random().nextInt(100));
116 } catch (InterruptedException e) {
117 e.printStackTrace();
118 }
119
120 //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)
121 Message msg = Message.obtain();
122 msg.what = SCANING;
123 msg.obj = scanInfo;
124 mHandler.sendMessage(msg);
125 }
126 Message msg = Message.obtain();
127 msg.what = SCAN_FINISH;
128 mHandler.sendMessage(msg);
129 };
130 }.start();
131 }
132
133 class ScanInfo{
134 public boolean isVirus;
135 public String packageName;
136 public String name;
137 }
138
139 private void initAnimation() {
140 RotateAnimation rotateAnimation = new RotateAnimation(
141 0, 360,
142 Animation.RELATIVE_TO_SELF, 0.5f,
143 Animation.RELATIVE_TO_SELF, 0.5f);
144 rotateAnimation.setDuration(1000);
145 //指定动画一直旋转
146 // rotateAnimation.setRepeatMode(RotateAnimation.INFINITE);
147 rotateAnimation.setRepeatCount(RotateAnimation.INFINITE);
148 //保持动画执行结束后的状态
149 rotateAnimation.setFillAfter(true);
150 //一直执行动画
151 iv_scanning.startAnimation(rotateAnimation);
152 }
153
154 private void initUI() {
155 iv_scanning = (ImageView) findViewById(R.id.iv_scanning);
156 tv_name = (TextView) findViewById(R.id.tv_name);
157 pb_bar = (ProgressBar) findViewById(R.id.pb_bar);
158 ll_add_text = (LinearLayout) findViewById(R.id.ll_add_text);
159 }
160 }
AnitVirusActivity
时间： 2024-11-02 07:56:54