APP后台运行在状态栏出现Doing heavy tasks怎么去掉？

dsong_wu · 发表于 2017-8-2 16:58:43

本帖最后由 dsong_wu 于 2017-8-2 17:01 编辑

使用了cordova.plugin.background-mode插件，想让app在后台运行的时候可以收到消息。但是app一旦在后台运行，状态栏就出现了提醒：App is running in background Doing heavy tasks。下面是用模拟器运行的截图
QQ图片20170802164819.png

我想把这个状态栏提醒禁止，怎么处理呢？求助，谢谢！
使用的插件代码如下：

if(this.wx){
justep.Util.hint("本应用暂时只支持android和ios平台");
}
var timer;
document.addEventListener('deviceready', function() {
cordova.plugins.backgroundMode.onactivate = function() {
var counter = 0;
var loginuser = localStorage.getItem("userinfo");
if(loginuser)
{
var user = JSON.parse(loginuser);
var user_id = user.user_id;
timer = setInterval(function() {
//获取消息(省略后台请求)
counter=2;
if(counter>0)
{
if (device.platform != 'Android') {
cordova.plugins.notification.badge.set(counter);
}
else{
cordova.plugins.backgroundMode.configure({
text : '有' + counter + '条新消息'
});
}
}
}, 10000);
}
};
cordova.plugins.backgroundMode.ondeactivate = function() {
var loginuser = localStorage.getItem("userinfo");
if(loginuser)
{
clearInterval(timer);
cordova.plugins.notification.badge.clear();
}
};
}, false);
cordova.plugins.backgroundMode.enable();

复制代码

liangyongfei · 发表于 2017-8-2 17:47:58

这个是因为 cordova.plugin.background-mode 插件自动弹出来的吗？？

可以修改下插件的源码
/Native/plugins/de.appplant.cordova.plugin.background-mode/www/background-mode.js

搜下字符串
App is running in background
改一下，代码

dsong_wu · 发表于 2017-8-3 11:12:28

liangyongfei 发表于 2017-8-2 17:47
这个是因为 cordova.plugin.background-mode 插件自动弹出来的吗？？

可以修改下插件的源码

找到该插件的代码，发现默认的通知Doing heavy tasks。怎么禁用呢？代码如下：

/*
Copyright 2013-2014 appPlant UG
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
*/
var exec = require('cordova/exec'),
channel = require('cordova/channel');
// Override back button action to prevent being killed
document.addEventListener('backbutton', function () {}, false);
// Called before 'deviceready' listener will be called
channel.onCordovaReady.subscribe(function () {
// Device plugin is ready now
channel.onCordovaInfoReady.subscribe(function () {
// Set the defaults
exports.setDefaults({});
});
// Only enable WP8 by default
if (['WinCE', 'Win32NT'].indexOf(device.platform) > -1) {
exports.enable();
}
});
/**
* @private
*
* Flag indicated if the mode is enabled.
*/
exports._isEnabled = false;
/**
* @private
*
* Flag indicated if the mode is active.
*/
exports._isActive = false;
/**
* @private
*
* Default values of all available options.
*/
exports._defaults = {
title: 'App is running in background',
text: 'Doing heavy tasks.',
ticker: 'App is running in background',
resume: true,
silent: false
};
/**
* Activates the background mode. When activated the application
* will be prevented from going to sleep while in background
* for the next time.
*/
exports.enable = function () {
this._isEnabled = true;
cordova.exec(null, null, 'BackgroundMode', 'enable', []);
};
/**
* Deactivates the background mode. When deactivated the application
* will not stay awake while in background.
*/
exports.disable = function () {
this._isEnabled = false;
cordova.exec(null, null, 'BackgroundMode', 'disable', []);
};
/**
* List of all available options with their default value.
*
* @return {Object}
*/
exports.getDefaults = function () {
return this._defaults;
};
/**
* Overwrite default settings
*
* @param {Object} overrides
* Dict of options which shall be overridden
*/
exports.setDefaults = function (overrides) {
var defaults = this.getDefaults();
for (var key in defaults) {
if (overrides.hasOwnProperty(key)) {
defaults[key] = overrides[key];
}
}
if (device.platform == 'Android') {
cordova.exec(null, null, 'BackgroundMode', 'configure', [defaults, false]);
}
};
/**
* Configures the notification settings for Android.
* Will be merged with the defaults.
*
* @param {Object} options
* Dict with key/value pairs
*/
exports.configure = function (options) {
var settings = this.mergeWithDefaults(options);
if (device.platform == 'Android') {
cordova.exec(null, null, 'BackgroundMode', 'configure', [settings, true]);
}
};
/**
* If the mode is enabled or disabled.
*
* @return {Boolean}
*/
exports.isEnabled = function () {
return this._isEnabled;
};
/**
* If the mode is active.
*
* @return {Boolean}
*/
exports.isActive = function () {
return this._isActive;
};
/**
* Called when the background mode has been activated.
*/
exports.onactivate = function () {};
/**
* Called when the background mode has been deaktivated.
*/
exports.ondeactivate = function () {};
/**
* Called when the background mode could not been activated.
*
* @param {Integer} errorCode
* Error code which describes the error
*/
exports.onfailure = function () {};
/**
* @private
*
* Merge settings with default values.
*
* @param {Object} options
* The custom options
*
* @return {Object}
* Default values merged
* with custom values
*/
exports.mergeWithDefaults = function (options) {
var defaults = this.getDefaults();
for (var key in defaults) {
if (!options.hasOwnProperty(key)) {
options[key] = defaults[key];
continue;
}
}
return options;
};

复制代码

liangyongfei · 发表于 2017-8-3 14:35:14

dsong_wu 发表于 2017-8-3 11:12
找到该插件的代码，发现默认的通知Doing heavy tasks。怎么禁用呢？代码如下：
...

自己跟下代码！找下可疑的代码是什么！注释掉代码就行了！
我觉得应该是
cordova.exec(null, null, 'BackgroundMode', 'configure', [defaults, false]);

你试试吧！

54huige · 发表于 2017-8-29 17:23:08

好了吗

dsong_wu · 发表于 2017-9-3 18:59:43

54huige 发表于 2017-8-29 17:23
好了吗

可以了，把 exports._defaults中的silent改为true就可以了

chengxx · 发表于 2018-3-24 18:40:00

解决了我的问题

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[结贴] APP后台运行在状态栏出现Doing heavy tasks怎么去掉？