我的应用拥有系统权限。它将在内部固件中,现在它位于/ system / app
我能够使用这篇文章静默安装应用程序
install / uninstall APKs programmatically (PackageManager vs Intents)
有效的示例应用
http://paulononaka.wordpress.com/2011/07/02/how-to-install-a-application-in-background-on-android/
但我仍然无法以相同的方式卸载应用程序。我尝试使用像安装示例中的反射。
public ApplicationManager(Context context) throws SecurityException, NoSuchMethodException {
observer = new PackageInstallObserver();
pm = context.getPackageManager();
Class<?>[] types = new Class[] {Uri.class, IPackageInstallObserver.class, int.class, String.class};
Class<?>[] uninstalltypes = new Class[] {String.class, IPackageInstallObserver.class, int.class};
method = pm.getClass().getMethod("installPackage", types);
uninstallmethod = pm.getClass().getMethod("deletePackage", uninstalltypes);
}
public void uninstallPackage(String packagename) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
uninstallmethod.invoke(pm, new Object[] {packagename, observer, 0});
}
public void installPackage(Uri apkFile) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
method.invoke(pm, new Object[] {apkFile, observer, INSTALL_REPLACE_EXISTING, null});
}
我添加了uninstallPackage方法并编辑了ApplicationManager方法。仍然无法让这个工作。
当我运行它时,我找不到方法(在调用“deletePackage”行上)。
以下内容不适用于我的更改: https://dl.dropbox.com/u/1928109/InstallInBackgroundSample.zip
以下是函数的说明:http://www.androidjavadoc.com/1.0_r1_src/android/content/pm/PackageManager.html#deletePackage(java.lang.String,android.content.pm.IPackageDeleteObserver,int)
参数还可以。好像我应该指定DeletePackageObserver类而不是InstallPackageObserver。但我不知道该怎么做(我没有这样的课)。
由于
答案 0 :(得分:18)
我是这样做的:
ApplicationManager.java(已更改部分):
private PackageInstallObserver observer;
private PackageDeleteObserver observerdelete;
private PackageManager pm;
private Method method;
private Method uninstallmethod;
class PackageDeleteObserver extends IPackageDeleteObserver.Stub {
public void packageDeleted(String packageName, int returnCode) throws RemoteException {
/*if (onInstalledPackaged != null) {
onInstalledPackaged.packageInstalled(packageName, returnCode);
}*/
}
}
public ApplicationManager(Context context) throws SecurityException, NoSuchMethodException {
observer = new PackageInstallObserver();
observerdelete = new PackageDeleteObserver();
pm = context.getPackageManager();
Class<?>[] types = new Class[] {Uri.class, IPackageInstallObserver.class, int.class, String.class};
Class<?>[] uninstalltypes = new Class[] {String.class, IPackageDeleteObserver.class, int.class};
method = pm.getClass().getMethod("installPackage", types);
uninstallmethod = pm.getClass().getMethod("deletePackage", uninstalltypes);
}
public void uninstallPackage(String packagename) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
uninstallmethod.invoke(pm, new Object[] {packagename, observerdelete, 0});
}
PackageDeleteObserver.java(在android.content.pm中):
package android.content.pm;
public interface IPackageDeleteObserver extends android.os.IInterface {
public abstract static class Stub extends android.os.Binder implements android.content.pm.IPackageDeleteObserver {
public Stub() {
throw new RuntimeException("Stub!");
}
public static android.content.pm.IPackageDeleteObserver asInterface(android.os.IBinder obj) {
throw new RuntimeException("Stub!");
}
public android.os.IBinder asBinder() {
throw new RuntimeException("Stub!");
}
public boolean onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags)
throws android.os.RemoteException {
throw new RuntimeException("Stub!");
}
}
public abstract void packageDeleted(java.lang.String packageName, int returnCode)
throws android.os.RemoteException;
}
也不要忘记添加清单的权限:
<uses-permission android:name="android.permission.DELETE_PACKAGES"/>
工作示例项目(apk需要放在设备上的“/ system / app”路径中): http://www.mediafire.com/file/no4buw54ed6vuzo/DeleteInBackgroundSample.zip
答案 1 :(得分:7)
这是方法的定义方式:
public abstract void deletePackage(
String packageName, IPackageDeleteObserver observer, int flags);
要使用反射调用它,您需要以下内容:
Class<?>[] uninstalltypes = new Class[] {String.class,
IPackageDeleteObserver.class, int.class};
uninstallmethod = pm.getClass().getMethod("deletePackage", uninstalltypes);
注意观察者的类型。
答案 2 :(得分:4)
如果您的应用内置于系统映像中,并且您正在使用内部API,那么您也可以停止假装,就像您是第三方应用并链接SDK一样。构建完整平台.jar并直接使用这些API。无论如何,你想要这样做,因为这些是私有API,因此它们可以并且确实会发生变化。你想要反对实际声明它们的内容,所以如果它们确实发生了变化,你将在构建过程中发现它。
答案 3 :(得分:1)
在android 2.3.x中,接口IPackageDeleteObserver与方法packageDeleted不同。