java - 从java代码中卸载apk文件

Question

我需要根据服务器上的最新版本卸载并重新安装 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)

谁能告诉我如何在不使用 Google Play 的情况下执行此操作？

Answer 1

您的 URI 格式不正确。请参阅this SO post相关问题(几乎重复)。我复制了下面的相关详细信息:本质上，您需要使用以下代码来构造 URI 以使 Intent 方法发挥作用。

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