从cordova插件启动android活动

我知道这可能是一个重复的问题,我已经尝试了堆栈的所有答案,但没有完整的答案.

大多数答案只是给出了如何启动一个活动,但没有提示如何配置Android Manifest文件中的活动以及保存活动布局和清单文件的位置.

任何人都可以提供完整的代码结构来启动cordova插件的活动.

解决方法:

以下是从cordova插件启动活动的完整步骤

1.安装Plugman以创建插件

npm install -g plugman

2.使用plugman创建cordova插件

plugman create --name PluginName --plugin_id com.example.sample.plugin --plugin_version 0.0.1

N.B：插件ID永远不会以大写字母开头

现在将创建PluginName目录.插件结构将是

PluginName/

|- plugin.xml

|- src/

|- www/PluginName.js

3.将android平台添加到插件中

plugman platform add --platform_name android

现在插件结构将是

PluginName/

|- plugin.xml

|- src/android/PluginName.java

|- www/PluginName.js

4.现在在src / android目录中创建一个名为NewActivity.java的java文件

此活动将使用我们的插件显示.

NewActivity.java

package com.example.sample.plugin;

import android.app.Activity;
import android.os.Bundle;

public class NewActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        String package_name = getApplication().getPackageName();
        setContentView(getApplication().getResources().getIdentifier("activity_new", "layout", package_name));
    }
}

5.现在在src / android目录中创建布局文件activity_new.xml

这是我们新活动的布局文件

activity_new.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="16dp"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:paddingTop="16dp"
    tools:context="com.example.sample.plugin.NewActivity">

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="New Activity"
        android:id="@+id/textView"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginTop="77dp" />
</RelativeLayout>

6.现在在src / android中编辑PluginName.java

现在我们需要处理请求并开始我们的新活动.

PluginName.java

package com.example.sample.plugin;

import android.content.Context;
import android.content.Intent;

import org.apache.cordova.CordovaPlugin;
import org.apache.cordova.CallbackContext;
import org.apache.cordova.CordovaWebView;
import org.apache.cordova.CordovaInterface;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

public class PluginName extends CordovaPlugin {

    public void initialize(CordovaInterface cordova, CordovaWebView webView) {
        super.initialize(cordova, webView);
    }

    @Override
    public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
        Context context = cordova.getActivity().getApplicationContext();
        if(action.equals("new_activity")) {
            this.openNewActivity(context);
            return true;
        }
        return false;
    }

    private void openNewActivity(Context context) {
        Intent intent = new Intent(context, NewActivity.class);
        this.cordova.getActivity().startActivity(intent);
    }
}

7.现在编辑www目录中的PluginName.js

现在创建新方法来调用以启动我们的新活动.

var exec = require('cordova/exec');

function plugin() {

}

plugin.prototype.new_activity = function() {
    exec(function(res){}, function(err){}, "PluginName", "new_activity", []);
}

module.exports = new plugin();

8.现在编辑plugin.xml

现在我们需要指定我们的文件插件并在cordova AndroidManifest.xml文件中进行必要的更改

plugin.xml中

<?xml version='1.0' encoding='utf-8'?>
<plugin id="com.example.sample.plugin" version="0.0.1" xmlns="http://apache.org/cordova/ns/plugins/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
    <name>PluginName</name>
    <js-module name="PluginName" src="www/PluginName.js">
        <clobbers target="PluginName" />
    </js-module>
    <platform name="android">
        <config-file parent="/*" target="res/xml/config.xml">
            <feature name="PluginName">
                <param name="android-package" value="com.example.sample.plugin.PluginName" />
            </feature>
        </config-file>
        <config-file target="AndroidManifest.xml" parent="/manifest/application">
            <activity android:label="New Activity" android:name="com.example.sample.plugin.NewActivity"></activity>
        </config-file>
        <config-file parent="/*" target="AndroidManifest.xml"></config-file>
        <source-file src="src/android/PluginName.java" target-dir="src/com/example/sample/plugin" />
        <source-file src="src/android/NewActivity.java" target-dir="src/com/example/sample/plugin" />
        <source-file src="src/android/activity_new.xml" target-dir="res/layout"/>
    </platform>
</plugin>

9.现在创建一个cordova项目

cordova create CordovaProject com.example.sample.cordovaproject "Cordova App"

10.将android平台添加到您的cordova项目中

cordova platform add android

11.现在添加你的插件

cordova plugin add your-plugin-local-path
eg: cordova plugin add "C:\PluginName"

12.在www目录中为index.html添加一个按钮

的index.html

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *">
        <meta name="format-detection" content="telephone=no">
        <meta name="msapplication-tap-highlight" content="no">
        <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width">
        <link rel="stylesheet" type="text/css" href="css/index.css">
        <title>Hello World</title>
    </head>
    <body>
        <div class="app">
            <h1>Apache Cordova</h1>
            <div id="deviceready" class="blink">
                <p class="event listening">Connecting to Device</p>
                <p class="event received">Device is Ready</p>
            </div>
            <button id = "new_activity">New Activity</button>
        </div>
        <script type="text/javascript" src="cordova.js"></script>
        <script type="text/javascript" src="js/index.js"></script>
    </body>
</html>

13.在www / js目录的index.js中为新按钮添加单击处理程序

单击我们的按钮后,我们将调用我们的插件方法来启动新活动

index.js

var app = {
    initialize: function() {
        this.bindEvents();
    },
    bindEvents: function() {
        document.addEventListener('deviceready', this.onDeviceReady, false);
    },
    onDeviceReady: function() {
        app.receivedEvent('deviceready');
    },
    receivedEvent: function(id) {
        var parentElement = document.getElementById(id);
        var listeningElement = parentElement.querySelector('.listening');
        var receivedElement = parentElement.querySelector('.received');

        listeningElement.setAttribute('style', 'display:none;');
        receivedElement.setAttribute('style', 'display:block;');

        console.log('Received Event: ' + id);
        document.getElementById("new_activity").addEventListener("click", new_activity);
    }
};

app.initialize();

function new_activity() {
    PluginName.new_activity();
}

14.现在在Android手机中运行这个应用程序

cordova run android

如果所有这些步骤都成功,当我们点击“新建活动”按钮时,我们的新活动就会显示出来.

标签：android,cordova,android-activity,cordova-plugins
来源： https://codeday.me/bug/20190930/1834953.html