Bmob云的使用_快速入门

安装BmobSDK

一、在你的项目根目录下创建"libs"目录，将下载的BmobSDK文件放入该目录下。

二、在你的应用程序的AndroidManifest.xml文件中添加相应的权限：

 android:name="android.permission.INTERNET"/>
 android:name="android.permission.ACCESS_WIFI_STATE"/>
 android:name="android.permission.ACCESS_NETWORK_STATE"/>
 android:name="android.permission.READ_PHONE_STATE"/>
 android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 android:name="android.permission.READ_LOGS"/>

xml version="1.0" encoding="utf-8"?>
     xmlns:android="http://schemas.android.com/apk/res/android"
        package="cn.bmob.example"
        android:versionCode="1"
        android:versionName="1.0">

     android:minSdkVersion="8" android:targetSdkVersion="17"/>

     android:name="android.permission.INTERNET"/>
     android:name="android.permission.ACCESS_NETWORK_STATE"/>
     android:name="android.permission.ACCESS_WIFI_STATE"/>
     android:name="android.permission.READ_PHONE_STATE"/>
     android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
     android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     android:name="android.permission.READ_LOGS"/>

    
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">
        
            android:name="cn.bmob.example.MainActivity"
            android:screenOrientation="portrait"
            android:label="@string/app_name">

                 android:name="android.intent.action.MAIN"/>
                 android:name="android.intent.category.LAUNCHER"/>


        
            android:name=".CreateActivity"
            android:screenOrientation="portrait">
        
            android:name=".DeleteActivity"
            android:screenOrientation="portrait">
        
            android:name=".UpdateActivity"
            android:screenOrientation="portrait">
        
            android:name=".FindActivity"
            android:screenOrientation="portrait">
    

初始化BmobSDK

在你应用程序启动的Activity的onCreate()方法中初始化Bmob功能。代码如下所示：

package com.bmob.example;
import cn.bmob.Bmob;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
         // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
         // 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, "Your Application ID");
    }
}

添加一行数据

首先创建JavaBean（对应为Bmob后台的数据表，更详细的解释请查看Android开发文档）

public class Person extends BmobObject {
    private String name;
    private String address;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
}

添加数据

Person p2 = new Person();
p2.setName("lucky");
p2.setAddress("北京海淀");
p2.save(this, new SaveListener() {
    @Override
    public void onSuccess() {
        // TODO Auto-generated method stub
        toast("添加数据成功，返回objectId为："+p2.getObjectId());
    }

    @Override
    public void onFailure(int code, String msg) {
        // TODO Auto-generated method stub
        toast("创建数据失败：" + msg);
    }
});

如果toast出添加数据成功的消息，你会在Bmob对应Application Id的数据表中看到有一行新增的数据，如下图所示：

获取一行数据

//查找Person表里面id为6b6c11c537的数据
BmobQuery<Person> bmobQuery = new BmobQuery<Person>();
bmobQuery.getObject(this, "6b6c11c537", new GetListener<Person>() {
    @Override
    public void onSuccess(Person object) {
        // TODO Auto-generated method stub
        toast("查询成功");
    }

    @Override
    public void onFailure(int code, String msg) {
        // TODO Auto-generated method stub
        toast("查询失败：" + msg);
    }
});

修改一行数据

//更新Person表里面id为6b6c11c537的数据，address内容更新为“北京朝阳”
Person p2 = new Person();
p2.setAddress("北京朝阳");
p2.update(this, "6b6c11c537", new UpdateListener() {
    @Override
    public void onSuccess() {
        // TODO Auto-generated method stub
        toast("更新成功：" + p2.getUpdatedAt());
    }
    @Override
    public void onFailure(int code, String msg) {
        // TODO Auto-generated method stub
        toast("更新失败：" + msg);
    }
});

删除一行数据

Person p2 = new Person();
p2.setObjectId("6b6c11c537");
p2.delete(this, new DeleteListener() {
    @Override
    public void onSuccess() {
        // TODO Auto-generated method stub
        toast("删除成功");
    }

    @Override
    public void onFailure(int code, String msg) {
        // TODO Auto-generated method stub
        toast("删除失败：" + msg);
    }
});