Bmob的使用案例

一、Bmob简介

（1）数据服务
支持丰富的数据类型，灵活方便的增删改查，可视化的数据操作，安全的角色和ACL管理，多表关联处理，数据的批量处理，本地数据缓存，开发者们无需关注服务器后端，就可以实现多平台的同步开发。
（2）文件服务
文件服务允许上传任何的文件类型，支持分片断点续传，此外，针对移动端对图片业务的需求，还提供了生成高压缩比的缩略图服务。
（3）推送服务
提供了Android和iOS两个版本的推送服务，采用Websocket保持长连接，稳定性更好，目前，64GB的单机能够支撑600万的用户长连接。
（4）扩展服务
提供APP官网、计划任务、地理位置、云端代码等扩展服务，确保您的个性化业务逻辑能够在云端更好的运转。

关于Bmob的使用请参考官网：http://docs.bmob.cn/android/faststart/index.html?menukey=fast_start&key=start_android

二、项目案例

Feedback.java

package com.lc.bombtest.bean;

import cn.bmob.v3.BmobObject;

/**
 * 反馈信息的JavaBean
 * 
 * 
 * 对应的是数据库中一张表
 * 
 * 要继承BmobObject
 * 
 * @author xuliugen
 * 
 */
public class Feedback extends BmobObject {
    private String name;
    private String feedback;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getFeedback() {
        return feedback;
    }

    public void setFeedback(String feedback) {
        this.feedback = feedback;
    }

}

MainActivity.java

package com.lc.bombtest;

import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import cn.bmob.push.BmobPush;
import cn.bmob.v3.Bmob;
import cn.bmob.v3.BmobInstallation;
import cn.bmob.v3.BmobPushManager;
import cn.bmob.v3.BmobQuery;
import cn.bmob.v3.listener.FindListener;
import cn.bmob.v3.listener.SaveListener;

import com.lc.bombtest.bean.Feedback;

public class MainActivity extends Activity {

    private static final String Application_ID = "e8296559cf0e088ad146c34ae7f99b72"; // 应用的ID

    private EditText mName;
    private EditText mFeedback;
    private Button query_by_name_btn;
    private EditText query_by_name;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 初始化 Bmob SDK
        // 使用时请将第二个参数Application ID替换成你在Bmob服务器端创建的Application ID
        Bmob.initialize(this, Application_ID);

        // 启动Push SDK的初始化
        BmobInstallation.getCurrentInstallation(this).save();
        BmobPush.startWork(this, Application_ID);

        mName = (EditText) this.findViewById(R.id.name);
        mFeedback = (EditText) this.findViewById(R.id.feedback);
        query_by_name_btn = (Button) this.findViewById(R.id.query_by_name_btn);
        query_by_name = (EditText) this.findViewById(R.id.query_by_name);

    }

    /**
     * submit的点击事件
     * 
     * @param view
     */
    public void submit(View view) {
        String nameString = mName.getText().toString();
        String feedbackString = mFeedback.getText().toString();

        if (nameString.equals("") || feedbackString.equals("")) {
            return;
        }

        // JavaBean的使用
        Feedback feedback = new Feedback();
        feedback.setName(nameString);
        feedback.setFeedback(feedbackString);

        // 保存数据到服务器端
        feedback.save(MainActivity.this, new SaveListener() {

            @Override
            public void onSuccess() {
                Toast.makeText(MainActivity.this, "submit success",
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onFailure(int i, String s) {
                Toast.makeText(MainActivity.this, "submit failure",
                        Toast.LENGTH_SHORT).show();
            }
        });
    }

    /**
     * 查询所有的数据queryAll
     */
    public void queryAllData(View view) {

        BmobQuery<Feedback> query = new BmobQuery<Feedback>();
        query.findObjects(MainActivity.this, new FindListener<Feedback>() {

            @Override
            public void onSuccess(List<Feedback> feedbacks) {
                AlertDialog.Builder builder = new AlertDialog.Builder(
                        MainActivity.this);
                builder.setTitle("Query All!");

                String string = "";

                for (Feedback feedback : feedbacks) {
                    string += feedback.getName() + ":" + feedback.getFeedback()
                            + "\n";
                }

                builder.setMessage(string);
                builder.create().show();
            }

            @Override
            public void onError(int i, String s) {

            }

        });

    }

    /**
     * 根据姓名查询数据
     * 
     * 单条数据的查询
     * 
     * @param view
     */
    public void queryName(View view) {
        String str = query_by_name.getText().toString();
        if (str.equals("")) {
            return;
        }
        BmobQuery<Feedback> query = new BmobQuery<Feedback>();

        query.addWhereEqualTo("name", str);// 增加的条件查询

        query.findObjects(MainActivity.this, new FindListener<Feedback>() {

            @Override
            public void onError(int i, String s) {

            }

            @Override
            public void onSuccess(List<Feedback> feedbacks) {
                AlertDialog.Builder builder = new AlertDialog.Builder(
                        MainActivity.this);
                builder.setTitle("Query By Name!");

                String string = "";

                for (Feedback feedback : feedbacks) {
                    string += feedback.getName() + ":" + feedback.getFeedback()
                            + "\n";
                }

                builder.setMessage(string);
                builder.setNegativeButton("取消", new OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });

                builder.setPositiveButton("确定", new OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });
                builder.create().show();
            }
        });

    }

    /**
     * 添加的push事件
     * 
     * @param view
     */
    public void pushAll(View view) {
        BmobPushManager pushManager = new BmobPushManager(MainActivity.this);
        pushManager.pushMessageAll("Test");
    }
}

PushReceiver.java

package com.lc.bombtest.broadcast;

import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;

import android.app.Notification;
import android.app.NotificationManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;
import cn.bmob.push.PushConstants;

import com.lc.bombtest.R;

public class PushReceiver extends BroadcastReceiver {

    /**
     * 获取推送消息
     */
    @Override
    public void onReceive(Context context, Intent intent) {

        String msgStringg = "";
        if (intent.getAction().equals(PushConstants.ACTION_MESSAGE)) {
            String message = intent
                    .getStringExtra(PushConstants.EXTRA_PUSH_MESSAGE_STRING);// 获取推送消息
            Toast.makeText(context, message, Toast.LENGTH_SHORT).show();

            // 解析数据
            JSONTokener jsonTokener = new JSONTokener(message);
            try {
                JSONObject object = (JSONObject) jsonTokener.nextValue();
                msgStringg = object.getString("alert");// 这里的alert是key
            } catch (JSONException e) {
                e.printStackTrace();
            }
            // notifications管理器
            NotificationManager notificationManager = (NotificationManager) context
                    .getSystemService(Context.NOTIFICATION_SERVICE);

            // 创建notification对象
            Notification notification = new Notification(
                    R.drawable.ic_launcher, "TestBmob",
                    System.currentTimeMillis());

            // 设置notification的点击事件
            notification.setLatestEventInfo(context, "Bomb Test", msgStringg,
                    null);
            notificationManager.notify(R.drawable.ic_launcher, notification);
        }
    }
}

activity_main.xml

<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="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <EditText
        android:id="@+id/feedback"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/name"
        android:layout_alignRight="@+id/name"
        android:layout_below="@+id/name"
        android:layout_marginTop="25dp"
        android:ems="10"
        android:hint="feedback" />

    <EditText
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:ems="10"
        android:hint="your name" />

    <Button
        android:id="@+id/submit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/feedback"
        android:layout_below="@+id/feedback"
        android:layout_marginTop="21dp"
        android:onClick="submit"
        android:text="提交" />

    <Button
        android:id="@+id/queryAll"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/submit"
        android:layout_alignBottom="@+id/submit"
        android:layout_marginLeft="18dp"
        android:layout_toRightOf="@+id/submit"
        android:onClick="queryAllData"
        android:text="查询所有" />

    <EditText
        android:id="@+id/query_by_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/submit"
        android:layout_centerVertical="true"
        android:ems="10"
        android:hint="your name" >

        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/query_by_name_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/feedback"
        android:layout_centerVertical="true"
        android:onClick="queryName"
        android:text="查询" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/query_by_name"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="65dp"
        android:layout_marginLeft="18dp"
        android:onClick="pushAll"
        android:text="推送消息" />

</RelativeLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.lc.bombtest"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <!-- 使用Bomb的一些权限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_LOGS" />

    <!-- BmobPush SDK权限 -->
    <permission
        android:name="cn.bmob.permission.push"
        android:protectionLevel="normal" />

    <uses-permission android:name="cn.bmob.permission.push" /> <!-- 添加自定义的权限 -->
    <uses-permission android:name="android.permission.READ_LOGS" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.RECEIVE_USER_PRESENT" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.lc.bombtest.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service
            android:name="cn.bmob.push.lib.service.PushService"
            android:exported="true"
            android:label="PushService"
            android:permission="cn.bmob.permission.push"
            android:process="cn.bmob.push" >
            <intent-filter>
                <action android:name="cn.bmob.push.lib.service.PushService" />
            </intent-filter>
        </service>

        <receiver android:name="cn.bmob.push.PushReceiver" >
            <intent-filter android:priority="2147483647" > <!-- 优先级加最高 -->
                <!-- 系统启动完成后会调用 -->
                <action android:name="android.intent.action.BOOT_COMPLETED" />
                <!-- 解锁完成后会调用 -->
                <action android:name="android.intent.action.USER_PRESENT" />
                <!-- 监听网络连通性 -->
                <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
            </intent-filter>
        </receiver>

        <!-- 自己定义的Receiver -->
        <receiver android:name="com.lc.bombtest.broadcast.PushReceiver" >
            <intent-filter>
                <action android:name="cn.bmob.push.action.MESSAGE" />
            </intent-filter>
        </receiver>
    </application>

</manifest>

效果：

其中Bomb后台数据：