【发布时间】:2019-05-05 18:27:38
【问题描述】:
我正在制作一个可以卸载系统应用程序的应用程序。在查看了 StackOverFlow 的所有答案后,我可以说其中 99% 是通过 ADB 和我发现有用的 https://stackoverflow.com/a/34399068/9953518 ,现在从 Android O 更改。
根据这篇文章https://medium.com/@quaful/the-changes-of-apk-install-location-since-android-oreo-e646d1b53c4d,现在无法导航到应用程序的特定文件夹,我们必须使用 .sourceDir。我遇到的问题是在请求 root 并获取 sourceDir 之后,.apk 文件不会卸载,如果是这样,在这种情况下不会卸载或删除完整的文件。我正在使用下面的代码:
//appsSelected is the array with all the package names of the system apps selected to be uninstalled
case "uninstall":
for (int i = 0; i < appsSelected.size(); ++i) {
final int finalI = i;
Thread worker = new Thread(new Runnable() {
@Override
public void run() {
RootManager.getInstance().obtainPermission();
System.out.println("Public directory is "+ yup(appsSelected.get(finalI)));
runCommand("rm -rf "+ yup(appsSelected.get(finalI)) );
}
});
worker.start();
}
break;
这是返回文件路径的函数:
String yup(String pack){
PackageManager m = getPackageManager();
PackageInfo p = null;
try {
p = m.getPackageInfo(pack, 0);
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
return p.applicationInfo.sourceDir;
}
最后是运行命令的函数:
public static void runCommand(String command) {
try {
Process chmod = Runtime.getRuntime().exec(command);
BufferedReader reader = new BufferedReader(
new InputStreamReader(chmod.getInputStream()));
int read;
char[] buffer = new char[4096];
StringBuffer output = new StringBuffer();
while ((read = reader.read(buffer)) > 0) {
output.append(buffer, 0, read);
}
reader.close();
chmod.waitFor();
String outputString = output.toString();
} catch (IOException e) {
throw new RuntimeException(e);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
我有 root 权限(“su”命令)和所有需要的权限。
【问题讨论】: