Android卸载APP的源码调用链

• 关键词：Android，源码，卸载，app，apk。
• 注：目前先记录调用链，详细代码以后有空补上。

在代码中卸载app的方式：
发送的intent（ACTION_UNINSTALL_PACKAGE），
来调用UninstallerActivity.java。
代码：

String packageName = "xxx.xxx.xxx.xxx";//要卸载的应用包名
PackageManager pm = cxt.getPackageManager();//获取包管理器
    List<PackageInfo> pinfo = pm.getInstalledPackages(0);//获取已安装包名的list
    for (int i = 0; i < pinfo.size(); i++) {//遍历
      if (pinfo.get(i).packageName.equalsIgnoreCase(packageName)) {
        //判断 要卸的包 是否存在
        Intent uninstall_intent = new Intent();
        uninstall_intent.setAction(Intent.ACTION_DELETE);//设置action为卸载已安装的包
        uninstall_intent.setData(Uri.parse("package:" + packageName));//设置
        startActivity(uninstall_intent);
      }
    }

• UninstallerActivity.java 在 AndroidManifest.xml 的配置

<activity android:name=".UninstallerActivity"
                <action android:name="android.intent.action.DELETE" />
                <action android:name="android.intent.action.UNINSTALL_PACKAGE" />

• 进入UninstallerActivity.java

--> onCreate()
--> showConfirmationDialog() //在此判断是否system/
--> showDialogFragment(new UninstallAlertDialogFragment())
-->> UninstallAlertDialogFragment$$onCreateDialog() // 去新的类，内部类

• 进入UninstallerActivity.java

--> onCreateDialog(Bundle savedInstanceState)
//弹窗显示：要卸载此应用吗(资源名：uninstall_application_text)
//点击确定后，
-->> ((UninstallerActivity) getActivity()).startUninstallProgress();// 去外部类

• 进入UninstallerActivity.java

--> startUninstallProgress()
--> newIntent.setClass(this, UninstallAppProgress.class);
-->> startActivity(newIntent);// 去新的类

• 进入UninstallAppProgress.java
• 如果静默卸载，就直接从这一步开始

--> onCreate 
--> getPackageManager().deletePackageAsUser(mAppInfo.packageName, observer, mAllUsers ? PackageManager.DELETE_ALL_USERS : 0, mUser.getIdentifier());
// 去新的类
// PackageManagerService.java$$deletePackageAsUser 

• PackageManagerService.java

//调用链
--> deletePackageAsUser 
--> deletePackage
--> deletePackageX 
--> (4)deletePackageLIF --
--> deleteInstalledPackageLIF
--> (6)removePackageDataLIF 
--> (7)removePackageLI 
--> cleanPackageDataStructuresLILPw

配合log来看：

10-18 03:00:32.044   769  1125 D PackageManager: deletePackageAsUser: pkg=com.topwise.httpdemo user=0 deleteAllUsers: false
10-18 03:00:32.055   769   869 D PackageManager: deletePackageX: pkg=com.topwise.httpdemo user=0
10-18 03:00:32.056   769   869 D PackageManager: (4）deletePackageLI: com.topwise.httpdemo user UserHandle{0}
10-18 03:00:32.057   769   869 D PackageManager: Marking package:com.topwise.httpdemo uninstalled for user:0
10-18 03:00:32.059   769   869 D PackageManager: Not installed by other users, full delete
10-18 03:00:32.059   769   869 D PackageManager: Removing non-system package: com.topwise.httpdemo
10-18 03:00:32.060   769   832 I ActivityManager: Force stopping com.topwise.httpdemo appid=10040 user=0: deletePackageX
10-18 03:00:32.060   769   869 D PackageManager: （6）removePackageDataLI: PackageSetting{99cd254 com.topwise.httpdemo/10040}
10-18 03:00:32.060   769   869 D PackageManager: (7）Removing package com.topwise.httpdemo
10-18 03:00:32.060   769   869 D PackageManager: Unregistered content provider: com.topwise.httpdemo.com.android.tools.ir.server.InstantRunContentProvider, className = com.android.tools.ir.server.InstantRunContentProvider,
isSyncable = false
10-18 03:00:32.060   769   869 D PackageManager:   Providers: com.android.tools.ir.server.InstantRunContentProvider
10-18 03:00:32.060   769   869 D PackageManager:   Activities: com.topwise.httpdemo.MainActivity
10-18 03:00:32.103   769  1575 W PackageManager: checkUidPermission(): android.permission.STATUS_BAR of 10025 is denied.