Question

我正在使用此code在我的家庭活动中创建一个弹出式对话框，要求用户对我的应用进行评级，代码工作正常，但是当用户选择“不谢谢”选项时，对话框不应该再次显示。

然而，当重新打开应用程序时，我的homeActivity会重新加载，其中的所有内容都会重置，所以尽管如此

editor.putBoolean("dontshowagain", true);
editor.commit();

对话框会再次显示，无论如何我可以在重新加载活动时存储布尔值吗？

public static class AppRater {

    private final int DAYS_UNTIL_PROMPT = 3;
    private final int LAUNCHES_UNTIL_PROMPT = 7;

    public void app_launched(Context mContext) {
        SharedPreferences prefs = mContext.getSharedPreferences("apprater", 0);
        if (prefs.getBoolean("dontshowagain", false)) { return ; }

        SharedPreferences.Editor editor = prefs.edit();

        // Increment launch counter
        long launch_count = prefs.getLong("launch_count", 0) + 1;
        editor.putLong("launch_count", launch_count);

        // Get date of first launch
        Long date_firstLaunch = prefs.getLong("date_firstlaunch", 0);
        if (date_firstLaunch == 0) {
            date_firstLaunch = System.currentTimeMillis();
            editor.putLong("date_firstlaunch", date_firstLaunch);
        }

                    // i just use this to test the dialog instantly
            showRateDialog(mContext, editor);



        // Wait at least n days before opening
        if (launch_count >= LAUNCHES_UNTIL_PROMPT) {
            if (System.currentTimeMillis() >= date_firstLaunch + 
                    (DAYS_UNTIL_PROMPT * 24 * 60 * 60 * 1000)) {
                showRateDialog(mContext, editor);
            }
        }

        editor.commit();
    }   

    public static void showRateDialog(final Context mContext, final SharedPreferences.Editor editor) {
        final Dialog dialog = new Dialog(mContext);
        dialog.setTitle("Rate MyApp");

        LinearLayout ll = new LinearLayout(mContext);
        ll.setOrientation(LinearLayout.VERTICAL);

        TextView tv = new TextView(mContext);
        tv.setText("We see that you have been using MyApp well. Would you like to rate us?");
        tv.setWidth(240);
        tv.setPadding(4, 0, 4, 10);
        ll.addView(tv);

        Button b1 = new Button(mContext);
        b1.setText("Rate MyApp");
        b1.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Uri uri = Uri.parse("market://details?id=" + mContext.getPackageName());
                Intent goToMarket = new Intent(Intent.ACTION_VIEW, uri);
                try {
                  mContext.startActivity(goToMarket); // playstore installed
                } catch (ActivityNotFoundException e) { // open website if not
                    mContext.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=" + mContext.getPackageName())));
                }
                dialog.dismiss();
            }
        });        
        ll.addView(b1);

        Button b2 = new Button(mContext);
        b2.setText("Remind me later");
        b2.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                dialog.dismiss();
            }
        });
        ll.addView(b2);


        Button b3 = new Button(mContext);
        b3.setText("No, thanks");
        b3.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                rated = true;
                if (editor != null) {
                    editor.putBoolean("dontshowagain", true);
                    editor.commit();
                }
                dialog.dismiss();
            }
        });
        ll.addView(b3);

        dialog.setContentView(ll);        
        dialog.show();    
    }
}
// http://www.androidsnippets.com/prompt-engaged-users-to-rate-your-app-in-the-android-market-appirater

Answer 1

好的问题。我认为原因是，您在方法editor的末尾提交了app_launched，并且对话框中的按钮按下了一段时间，所以当您执行此操作editor.putBoolean("dontshowagain", true)时， editor已经提交，因此您的输入不会保存在首选项中。

如果您需要有关如何更改代码以解决此问题的帮助，请在评论中告诉我。

编辑 - 部分代码

首先，不要将编辑器传递给showRateDialog方法，因此请将方法签名更改为：

public static void showRateDialog(final Context mContext)

其次，在你的onClick方法中，创建一个新的编辑器，写下标志并提交。

public void onClick(View v) {
    rated = true;
    SharedPreferences prefs = mContext.getSharedPreferences("apprater", 0);
    // create editor, write stuff and commit, all in one line.
    prefs.edit().putBoolean("dontshowagain", true).commit();
    dialog.dismiss();
}

Answer 2

Ridicully是正确的。请改用此代码并打开一个新编辑器：

b3.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
        rated = true;
        SharedPreferences prefs = mContext.getSharedPreferences("apprater", 0);
        SharedPreferences.Editor editorNew = prefs.edit();
        editorNew.putBoolean("dontshowagain", true);
        editorNew.commit();

        dialog.dismiss();
    }
});

然后通过删除编辑器参数来清除showRateDialog。请记住，在设置它们的方法返回之后很久就会调用侦听器的代码。

单击后关闭弹出对话框

2 个答案: