我有一个片段,当他们单击uninstall时,它使用一个意图来卸载应用程序。

View.OnClickListener removeButtonClick = new View.OnClickListener() {

    @Override
    public void onClick(View paramView) {
        PackageManager pm = ContextProvider.getContext().getPackageManager();
        Intent intent = new Intent(Intent.ACTION_DELETE, Uri.fromParts("package",
                    app.packageName, null));
        int result = 0;
        startActivityForResult(intent, result);
    }
};

当活动成功完成时,它将调用:
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    new MainActivity.UpdateDatabase().execute(); // update database
    ContextProvider.getContext().getFragmentManager().popBackStack(); // go back
}

但无论用户是按了uninstall还是cancel,requestcode和resultcode均为0,数据均为空。我怎样才能知道他们选择了什么?
这就是我最后所做的:
@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        Boolean found = false;
        PackageManager pm = ContextProvider.getContext().getPackageManager();
        List<PackageInfo> packages = pm.getInstalledPackages(0);
        for (PackageInfo pi : packages) {
            if (pi.packageName.equals(app.packageName)) {
                found = true;
                break;
            }
        }
        if (!found) { // User uninstalled app so update database and go back
            new MainActivity.UpdateDatabase().execute();
            goBack();
        }

    }

最佳答案

不知道该怎么做,但你能不能用包管理器看看包是否还在?

10-07 16:39