Bmob后端云的使用
作者：互联网
参考链接：http://doc.bmob.cn/data/android/#sdk_1
如果报错Error: Invoke-customs are only supported starting with Android O (--min-api 26)：https://blog.csdn.net/Test_tju/article/details/100516933
模块结构图：
manifests：
1 <?xml version="1.0" encoding="utf-8"?> 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android" 3 package="com.mingrisoft.bmobtest"> 4 <!--允许联网 --> 5 <uses-permission android:name="android.permission.INTERNET" /> 6 <!--获取GSM（2g）、WCDMA（联通3g）等网络状态的信息 --> 7 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 8 <!--获取wifi网络状态的信息 --> 9 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> 10 <!--保持CPU 运转，屏幕和键盘灯有可能是关闭的,用于文件上传和下载 --> 11 <uses-permission android:name="android.permission.WAKE_LOCK" /> 12 <!--获取sd卡写的权限，用于文件上传和下载--> 13 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 14 <!--允许读取手机状态 用于创建BmobInstallation--> 15 <uses-permission android:name="android.permission.READ_PHONE_STATE" /> 16 17 <application 18 android:allowBackup="true" 19 android:icon="@mipmap/ic_launcher" 20 android:label="@string/app_name" 21 android:roundIcon="@mipmap/ic_launcher_round" 22 android:supportsRtl="true" 23 android:theme="@style/AppTheme"> 24 <activity android:name=".MainActivity"> 25 <intent-filter> 26 <action android:name="android.intent.action.MAIN" /> 27 28 <category android:name="android.intent.category.LAUNCHER" /> 29 </intent-filter> 30 </activity> 31 32 <provider 33 android:name="cn.bmob.v3.util.BmobContentProvider" 34 android:authorities="com.mingrisoft.bmobtest.BmobContentProvider"> //这里要改为自己的包名 35 </provider> 36 </application> 37 38 </manifest>
activity_main.xml：
1 <?xml version="1.0" encoding="utf-8"?> 2 <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:app="http://schemas.android.com/apk/res-auto" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 tools:context=".MainActivity"> 8 9 <TextView 10 android:layout_width="wrap_content" 11 android:layout_height="wrap_content" 12 android:text="Hello World!" 13 app:layout_constraintBottom_toBottomOf="parent" 14 app:layout_constraintLeft_toLeftOf="parent" 15 app:layout_constraintRight_toRightOf="parent" 16 app:layout_constraintTop_toTopOf="parent" /> 17 18 </android.support.constraint.ConstraintLayout>
MainActivity：
1 package com.mingrisoft.bmobtest;
2
3 import android.support.v7.app.AppCompatActivity;
4 import android.os.Bundle;
5 import android.widget.Toast;
6
7 import cn.bmob.v3.Bmob;
8 import cn.bmob.v3.BmobQuery;
9 import cn.bmob.v3.exception.BmobException;
10 import cn.bmob.v3.listener.QueryListener;
11 import cn.bmob.v3.listener.SaveListener;
12 import cn.bmob.v3.listener.UpdateListener;
13
14 public class MainActivity extends AppCompatActivity {
15
16 @Override
17 protected void onCreate(Bundle savedInstanceState) {
18 super.onCreate(savedInstanceState);
19 setContentView(R.layout.activity_main);
20
21 //第一：默认初始化
22 Bmob.initialize(this, "1368b7fd0a523efab971eb807e1b9bc2"); //这里要设置成自己的key
23
24 Person p2 = new Person();
25 p2.setName("lucky");
26 p2.setAddress("北京海淀");
27 p2.save(new SaveListener<String>() {
28 @Override
29 public void done(String objectId,BmobException e) {
30 if(e==null){
31 Toast.makeText(MainActivity.this, "添加数据成功，返回objectId为："+objectId, Toast.LENGTH_LONG).show();
32 }else{
33 Toast.makeText(MainActivity.this, "创建数据失败：" + e.getMessage(), Toast.LENGTH_LONG).show();
34 }
35 }
36 });
37
38 //查找Person表里面id为6b6c11c537的数据
39 BmobQuery<Person> bmobQuery = new BmobQuery<Person>();
40 bmobQuery.getObject("b7ca30c826", new QueryListener<Person>() {
41 @Override
42 public void done(Person object,BmobException e) {
43 if(e==null){
44 Toast.makeText(MainActivity.this, "查询成功", Toast.LENGTH_LONG).show();
45 }else{
46 Toast.makeText(MainActivity.this, "查询失败：" + e.getMessage(), Toast.LENGTH_LONG).show();
47 }
48 }
49 });
50
51 //更新Person表里面id为b80c3fefdb的数据，address内容更新为“北京朝阳”
52 Person p3 = new Person();
53 p3.setAddress("广西南宁");
54 p3.update("b80c3fefdb", new UpdateListener() {
55
56 @Override
57 public void done(BmobException e) {
58 if(e==null){
59 Toast.makeText(MainActivity.this,"更新成功:"+p3.getUpdatedAt(), Toast.LENGTH_LONG).show();
60 }else{ Toast.makeText(MainActivity.this, "更新失败：" + e.getMessage(), Toast.LENGTH_LONG).show();
61 }
62 }
63
64 });
65
66 Person p4 = new Person();
67 p4.setObjectId("b80c3fefdb");
68 p4.delete(new UpdateListener() {
69
70 @Override
71 public void done(BmobException e) {
72 if(e==null){
73 Toast.makeText(MainActivity.this,"删除成功:"+p4.getUpdatedAt(), Toast.LENGTH_LONG).show();
74 }else{
75 Toast.makeText(MainActivity.this,"删除失败：" + e.getMessage(), Toast.LENGTH_LONG).show();
76 }
77 }
78
79 });
80 }
81 }
Person：
1 package com.mingrisoft.bmobtest;
2
3 import cn.bmob.v3.BmobObject;
4
5 /** ����javaBean
6 * @ClassName: Person
7 * @Description: TODO
8 * @author smile
9 * @date 2014-5-20 ����4:12:55
10 */
11 public class Person extends BmobObject {
12
13 private String name;
14 private String address;
15
16 public String getName() {
17 return name;
18 }
19 public void setName(String name) {
20 this.name = name;
21 }
22 public String getAddress() {
23 return address;
24 }
25 public void setAddress(String address) {
26 this.address = address;
27 }
28 }
标签：Toast,后端,show,Bmob,MainActivity,Person,使用,import,public 来源： https://www.cnblogs.com/hemeiwolong/p/12874714.html