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
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
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 }