Android采用pm命令静默卸载应用

卸载app的方式有多种，可以直接调用android系统的卸载程序，但是这样会调出android卸载提示框，问题就是真的不好看。

所以采用静默卸载的方式，避免弹出系统提示框。

方法一（调用系统卸载程序）：

1 //卸载应用
2             Uri packageURI = Uri.parse("package:"   pkgName);
3             Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
4             startActivity(uninstallIntent);

方法二（静默安装）：

 1  /**
 2      * 卸载应用入口提示
 3      *
 4      * @param position app在列表中的位置
 5      * @param mData app列表
 6      */
 7     public void startUninstall(int position, List<AppInfoModel> mData) {
 8 
 9         //获取应用程序包名
10         String pkg = mData.get(position).packageName;
11         //判断此应用程序是否存在
12         Boolean pkgExist;
13         pkgExist = appExist(mContext,pkg);
14         if (!pkgExist) {
15             Toast.makeText(mContext, "程序未安装", Toast.LENGTH_SHORT).show();
16         } else {
17             //静默卸载
18             Boolean uninstallSuccess = uninstall(pkg);
19             if (uninstallSuccess){
20                 Toast.makeText(mContext, "卸载成功", Toast.LENGTH_SHORT).show();
21             } else {
22                 Toast.makeText(mContext, "卸载失败", Toast.LENGTH_SHORT).show();
23             }
24         }
25 
26     }
27 
28 
29     /**
30      * 静默卸载App
31      *
32      * @param packageName 包名
33      * @return 是否卸载成功
34      */
35     private static boolean uninstall(String packageName) {
36         Process process = null;
37         BufferedReader successResult = null;
38         BufferedReader errorResult = null;
39         StringBuilder successMsg = new StringBuilder();
40         StringBuilder errorMsg = new StringBuilder();
41         try {
42             process = new ProcessBuilder("pm", "uninstall", packageName).start();
43             successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
44             errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
45             String s;
46             while ((s = successResult.readLine()) != null) {
47                 successMsg.append(s);
48             }
49             while ((s = errorResult.readLine()) != null) {
50                 errorMsg.append(s);
51             }
52         } catch (Exception e) {
53             KLog.d("e = "   e.toString());
54         } finally {
55             try {
56                 if (successResult != null) {
57                     successResult.close();
58                 }
59                 if (errorResult != null) {
60                     errorResult.close();
61                 }
62             } catch (Exception e) {
63                 KLog.d("Exception : "   e.toString());
64             }
65             if (process != null) {
66                 process.destroy();
67             }
68         }
69         //如果含有"success"单词则认为卸载成功
70         return successMsg.toString().equalsIgnoreCase("success");
71     }
72 
73     /**
74      * 判断应用是否存在
75      *
76      * @param context       上下文
77      * @param packageName   包名
78      * @return  是否存在
79      */
80     private boolean appExist(Context context, String packageName) {
81         try {
82             List<PackageInfo> packageInfoList = context.getPackageManager().getInstalledPackages(0);
83             for (PackageInfo packageInfo : packageInfoList) {
84                 if (packageInfo.packageName.equalsIgnoreCase(packageName)) {
85                     return true;
86                 }
87             }
88         } catch (Exception e) {
89             KLog.d(e.toString());
90         }
91         return false;
92     }