我在Ionic 4应用程序中使用了firebase插件。当用户单击前台推送时,我有一个用例来实现。即他必须重定向到其他用户界面。我怎样才能做到这一点?我可以使用背景推送点击的用例来做到这一点。

fcmListeners() {
    this.firebase.onNotificationOpen().subscribe(async (data: any) => {

      if (data.tap) {// when user tapped the background notification
        this.pushRedirection(data);
        console.log("Received in background-data", data);
      } else {
        console.log("Received in foreground", data);
        this.pushRedirection(data);
      }
    });
  }

如果我使用上述代码,则无需用户单击即可自动转到所需的页面。但是,如果用户仅单击推送,则需要实现它。那你能告诉我如何处理吗?

有效负载:
{
  "registration_ids": [
    "dlaNHzi7Gy8:APA91bGdn_jXFJm1xdGGI44s48JbXEu5iYa"
  ],
  "notification": {
    "body": "Push Test Facility Category",
    "title": null,
    "icon": "myicon",
    "sound": "mySound",
    "vibrate": 1,
    "Badge": 1,
    "click_action": "FCM_PLUGIN_ACTIVITY"
  },
  "data": {
    "message": "Push Test Facility Category",
    "title": null,
    "b": "22",
    "id": "2",
    "category_name": "Restaurants",
    "h": "1",
    "p": 1,
    "type": "2"
  }
}
this.firebase.onNotificationOpen().subscribe(async (data: any)
ios - 在Firebase FCM上检测前景推送事件-LMLPHP

注意:我可以在这里为android实现自定义通知吐司,因为它在前台通知中不显示任何内容。但是iOS默认情况下会显示前台通知。那么如何处理呢?

最佳答案

Firebase Corodva插件当前即使在前台将应用程序接收到通知时也显示推送通知,但这是 an issue ,并且不应是默认行为。如您所见,在合并修订之前,您可以像这样在本地对其进行修复:

我变了

PROJECT_ROOT/plugins/cordova-plugin-firebase/src/ios/AppDelegate+FirebasePlugin.m
但是也

PROJECT_ROOT/platforms/ios/PROJECT_NAME/plugins/cordova-plugin-firebase/AppDelegate+FirebasePlugin.m
在第183行的两个文件中,我都替换了

completionHandler(UNNotificationPresentationOptionAlert);


completionHandler(UNNotificationPresentationOptionNone);
现在,它的行为就像预期的那样(前台没有通知,只有在
背景)

解决此问题后,您可以使用data.tap并应正常工作:

if (data.tap) {
  // when user tapped the background notification
  this.pushRedirection(data);
  console.log("Received in background-data", data);
}

如果您需要在CI / CD环境中执行此操作,或者只想使其自动化,则可以创建 Cordova Hook

为了做到这一点,首先在cordova-hooks中创建一个新的src文件夹,然后创建一个名为fix_push-notifications-foreground_issue.js的新js文件,如下所示:
src
 |- ...
 |- cordova-hooks
      |- fix_push-notifications-foreground_issue.js
 |- node_modules
 |- ...

请注意,还有其他一些方法可以添加Cordova钩子(例如使用默认的hooks文件夹),但是我还是更喜欢使用自定义文件夹。可以找到更多信息 here

将以下代码粘贴到该新的js文件中:
#!/usr/bin/env node
module.exports = function (context) {

    const fs = require('fs');
    const path = require('path');

    const issue = `completionHandler(UNNotificationPresentationOptionAlert);`;
    const fix = `completionHandler(UNNotificationPresentationOptionNone);`;

    // ISSUE: iOS: Push notifications are shown when in foreground
    // https://github.com/arnesson/cordova-plugin-firebase/issues/817

    function start() {
        console.log('+------------------------------------+');
        console.log('| Starting PN Foreground Fix Hook    |');
        console.log('+------------------------------------+');


        const pluginDir = path.join(context.opts.projectRoot, '/plugins/cordova-plugin-firebase-lib/src/ios');
        const pluginFile = path.join(pluginDir, 'AppDelegate+FirebasePlugin.m');

        const platformPluginDir = path.join(context.opts.projectRoot, '/platforms/ios/YourAppName/Plugins/cordova-plugin-firebase-lib');
        const platformPluginFile = path.join(platformPluginDir, 'AppDelegate+FirebasePlugin.m');

        applyFixToFile(pluginFile);
        applyFixToFile(platformPluginFile);

        console.log('+------------------------------------+');
    }

    /**
     * Fixes the push notification foreground issue on the file sent as parametner
     * @param {*} file Path of the file to be fixed
     */
    function applyFixToFile(file) {
        if (fs.existsSync(file)) {
            let content = fs.readFileSync(file).toString('utf8');

            if (content.indexOf(issue) > -1) {

                content = content.replace(issue, fix);
                fs.writeFileSync(file, content);

                console.log(`   PN foregorund fix applied to ${file} file`);

            } else {

                console.log(`   No need to apply PN foreground fix to ${file} file`);

            }

        } else {
            console.log(`   Unable to find ${file} file`);
        }
    }

    // Start the hook
    start();

}

最后,将钩子添加到config.xml文件中:
<widget ...

  <hook src="cordova-hooks/fix_push-notifications-foreground_issue.js" type="before_prepare" />

  <platform name="android">
  ...
  </platform>

  <platform name="ios">
  ...
  </platform>

</widget>

现在,每次构建应用程序时,都应自动应用此修复程序:)

09-10 01:59
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