android - 使用 ACTION_SEND Intent 时过滤掉特定应用程序的异常？

Question

我在按照来自的说明使用 ACTION_SEND 时尝试过滤特定的应用程序 How to filter specific apps for ACTION_SEND intent (and set a different text for each app)

它在我的手机(Android M4 Aqua)上运行完美，但是当我使用 LG G3 手机时，它复制了 gmail，并且没有过滤 Android Beam、Zalo、Blue Mail ...。

如下图所示: Filter List

这是上面链接中的代码:

public void onShareClick(View v) {
Resources resources = getResources();

Intent emailIntent = new Intent();
emailIntent.setAction(Intent.ACTION_SEND);
// Native email client doesn't currently support HTML, but it doesn't hurt to try in case they fix it
emailIntent.putExtra(Intent.EXTRA_TEXT, Html.fromHtml(resources.getString(R.string.share_email_native)));
emailIntent.putExtra(Intent.EXTRA_SUBJECT, resources.getString(R.string.share_email_subject));
emailIntent.setType("message/rfc822");

PackageManager pm = getPackageManager();
Intent sendIntent = new Intent(Intent.ACTION_SEND);     
sendIntent.setType("text/plain");


Intent openInChooser = Intent.createChooser(emailIntent, resources.getString(R.string.share_chooser_text));

List<ResolveInfo> resInfo = pm.queryIntentActivities(sendIntent, 0);
List<LabeledIntent> intentList = new ArrayList<LabeledIntent>();        
for (int i = 0; i < resInfo.size(); i++) {
    // Extract the label, append it, and repackage it in a LabeledIntent
    ResolveInfo ri = resInfo.get(i);
    String packageName = ri.activityInfo.packageName;
    if(packageName.contains("android.email")) {
        emailIntent.setPackage(packageName);
    } else if(packageName.contains("twitter") || packageName.contains("facebook") || packageName.contains("mms") || packageName.contains("android.gm")) {
        Intent intent = new Intent();
        intent.setComponent(new ComponentName(packageName, ri.activityInfo.name));
        intent.setAction(Intent.ACTION_SEND);
        intent.setType("text/plain");
        if(packageName.contains("twitter")) {
            intent.putExtra(Intent.EXTRA_TEXT, resources.getString(R.string.share_twitter));
        } else if(packageName.contains("facebook")) {
            // Warning: Facebook IGNORES our text. They say "These fields are intended for users to express themselves. Pre-filling these fields erodes the authenticity of the user voice."
            // One workaround is to use the Facebook SDK to post, but that doesn't allow the user to choose how they want to share. We can also make a custom landing page, and the link
            // will show the <meta content ="..."> text from that page with our link in Facebook.
            intent.putExtra(Intent.EXTRA_TEXT, resources.getString(R.string.share_facebook));
        } else if(packageName.contains("mms")) {
            intent.putExtra(Intent.EXTRA_TEXT, resources.getString(R.string.share_sms));
        } else if(packageName.contains("android.gm")) { // If Gmail shows up twice, try removing this else-if clause and the reference to "android.gm" above
            intent.putExtra(Intent.EXTRA_TEXT, Html.fromHtml(resources.getString(R.string.share_email_gmail)));
            intent.putExtra(Intent.EXTRA_SUBJECT, resources.getString(R.string.share_email_subject));               
            intent.setType("message/rfc822");
        }

        intentList.add(new LabeledIntent(intent, packageName, ri.loadLabel(pm), ri.icon));
    }
}

// convert intentList to array
LabeledIntent[] extraIntents = intentList.toArray( new LabeledIntent[ intentList.size() ]);

openInChooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, extraIntents);
startActivity(openInChooser);       
 }

这是我在 LG G3 手机上的调试: debug on LG G3

-“intentList”与上面代码中的intentList相同(列表“intentList”)

-“resolveInfoList”是列表“resInfo”

-“列表”只是一个测试列表，我用它来添加发送包名称如您所见，“intentList”仅包含一项(gmail 包项)，但 G3 上的过滤器列表显示 6 项:两个 Gmail、Zalo、Android Beam、Email、BlueMail。我无法弄清楚为什么它与 Intent 列表不同。有人可以告诉我代码中有什么问题吗(在我的 Android M4 Aqua 上完美运行) 已更新我根据 keivan Esbati 的评论更新了我的代码，我几乎捕获了我想要的东西但是有一个问题，如果我像这样添加 gmail:

    public void onShareClick() {
    Resources resources = getResources();

    Intent emailIntent = new Intent();
    emailIntent.setAction(Intent.ACTION_SENDTO);
    emailIntent.setData(Uri.parse("mailto:"));
    emailIntent.putExtra(Intent.EXTRA_TEXT, "123");
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, "q23");

    PackageManager pm = getPackageManager();
    Intent sendIntent = new Intent(Intent.ACTION_SEND);
    sendIntent.setType("text/plain");


    Intent openInChooser = Intent.createChooser(emailIntent, "string");

    List<ResolveInfo> resInfo = pm.queryIntentActivities(sendIntent, 0);
    List<LabeledIntent> intentList = new ArrayList<LabeledIntent>();
    for (int i = 0; i < resInfo.size(); i++) {
        ResolveInfo ri = resInfo.get(i);
        String packageName = ri.activityInfo.packageName;
        if (packageName.contains("android.email")) {
            emailIntent.setPackage(packageName);
        }

        if (packageName.contains("android.gm")) {
            Intent intent = new Intent();
            intent.setComponent(new ComponentName(packageName,
                ri.activityInfo.name));
            intent.setAction(Intent.ACTION_SEND);
            intent.setType("text/plain");
            intent.putExtra(Intent.EXTRA_TEXT, shareText.getText()
                .toString());
            intent.putExtra(Intent.EXTRA_SUBJECT,
                getString(R.string.intent_subject));
            intentList.add(new LabeledIntent(intent, packageName, ri
                .loadLabel(pm), ri.icon));
        }
    }

，它可以在 LG G3 中使用，但在 Sony M4 中它只显示默认邮件。然而，如果我像下面的代码一样删除它:

    public void onShareClick() {
        Resources resources = getResources();

        Intent emailIntent = new Intent();
        emailIntent.setAction(Intent.ACTION_SENDTO);
        emailIntent.setData(Uri.parse("mailto:"));

        emailIntent.putExtra(Intent.EXTRA_TEXT, "123");
        emailIntent.putExtra(Intent.EXTRA_SUBJECT, "q23");

        PackageManager pm = getPackageManager();
        Intent sendIntent = new Intent(Intent.ACTION_SEND);
        sendIntent.setType("text/plain");


        Intent openInChooser = Intent.createChooser(emailIntent, "string");

        List<ResolveInfo> resInfo = pm.queryIntentActivities(sendIntent, 0);
        List<LabeledIntent> intentList = new ArrayList<LabeledIntent>();
        for (int i = 0; i < resInfo.size(); i++) {
            ResolveInfo ri = resInfo.get(i);
            String packageName = ri.activityInfo.packageName;
            if (packageName.contains("android.email")) {
                emailIntent.setPackage(packageName);
            }
        }
   //tried to remove duplicated items but it didn't work
  Set<LabeledIntent> stringSet=new HashSet<LabeledIntent>();
        stringSet.addAll(intentList);
        intentList.clear();
        intentList.addAll(stringSet);
        LabeledIntent[] extraIntents = intentList.toArray(new LabeledIntent[intentList.size()]);
        openInChooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, extraIntents);
        startActivity(openInChooser);
    }

即使我尝试使用 hashmap 删除标记列表中的重复项目，它也没有用，列表中仍然有两个 gmail 项目。我如何摆脱它？

Answer 1

这是因为Intent.EXTRA_INITIAL_INTENTS标志；此标志告诉选择器添加支持特定 Intent 的应用程序以及初始 Intent 的应用程序。由于 Gmail 应用程序同时支持 emailIntent 和 sendIntent，它在列表中出现了两次。您可以简单地删除 android.gm 部分，因为 Gmail 无论如何都支持 message/rfc822 消息..

更新:由于您为两个 Intent 创建了选择器，因此您必须查询两个 Intent 并仅添加不重复的应用程序，因此首先查询电子邮件 Intent，添加所有应用程序，然后查询 Send Intent 但仅添加它们的应用程序包名称尚未存在。