从Java代码卸载APK文件

Question

我需要根据服务器的最新版本来卸载并重新安装apk文件。 当我不在Google Play中更新应用程序时，如何卸载并重新安装该应用程序？ 我的卸载代码：

public void UnInstallApplication(String packageName)// Passing com.example.homelauncher as package name.
    {

        Uri packageURI = Uri.parse(packageName.toString());
        Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
        uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(uninstallIntent); 
    }

我收到以下错误：

08-05 20:07:29.670: E/AndroidRuntime(845): FATAL EXCEPTION: main
08-05 20:07:29.670: E/AndroidRuntime(845): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.DELETE dat=com.example.homelauncher flg=0x10000000 }
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1409)
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379)
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.app.Activity.startActivityForResult(Activity.java:2827)
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.app.Activity.startActivity(Activity.java:2933)
08-05 20:07:29.670: E/AndroidRuntime(845):  at com.example.homelauncher.MainActivity.UnInstallApplication(MainActivity.java:246)
08-05 20:07:29.670: E/AndroidRuntime(845):  at com.example.homelauncher.MainActivity$2$1.onClick(MainActivity.java:152)
08-05 20:07:29.670: E/AndroidRuntime(845):  at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:159)
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.os.Handler.dispatchMessage(Handler.java:99)
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.os.Looper.loop(Looper.java:123)
08-05 20:07:29.670: E/AndroidRuntime(845):  at android.app.ActivityThread.main(ActivityThread.java:3683)
08-05 20:07:29.670: E/AndroidRuntime(845):  at java.lang.reflect.Method.invokeNative(Native Method)
08-05 20:07:29.670: E/AndroidRuntime(845):  at java.lang.reflect.Method.invoke(Method.java:507)
08-05 20:07:29.670: E/AndroidRuntime(845):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
08-05 20:07:29.670: E/AndroidRuntime(845):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-05 20:07:29.670: E/AndroidRuntime(845):  at dalvik.system.NativeStart.main(Native Method)

谁能告诉我不使用Google Play怎么做？

Answer 1

您的URI错误。 有关相关问题，请参见此SO帖子 （几乎重复）。 我在下面复制了相关的详细信息：本质上，您需要使用以下代码来构造URI以使intent方法起作用。

Intent intent = new Intent(Intent.ACTION_DELETE, Uri.fromParts("package",
getPackageManager().getPackageArchiveInfo(apkUri.getPath(), 0).packageName,null));
startActivity(intent);

Answer 2

如果您的设备是rootet，则可以使用在Android Linux Shell中执行的adb命令卸载apk。

String command = "pm uninstall com.my.first.program ";