Android数据库DbFlow

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Android数据库框架DbFlow使用

打开项目的根目录下的build.gradle

如下：

打开module下的build.gradle文件添加：

def dbFlow_version = "4.0.0-beta3"

在依赖下添加：

annotationProcessor "com.github.Raizlabs.DBFlow:dbflow-processor:${dbFlow_version}"compile "com.github.Raizlabs.DBFlow:dbflow-core:${dbFlow_version}"compile "com.github.Raizlabs.DBFlow:dbflow:${dbFlow_version}"

下面可以正式开始：
创建application类以初始化DbFlow:

public class AppDb extends Application {    @Override    public void onCreate() {        super.onCreate();        FlowManager.init(new FlowConfig.Builder(this).build());    }}

不要忘记在清单文件下添加

android:name=".AppDb"

创建数据库类：

@Database(name = MyDatabase.NAME, version = MyDatabase.VERSION)public class MyDatabase {    static final String NAME = "DataBase";    static final int VERSION = 1;}

创建实体类：
这里需要注意，修饰符必须大于default，要有自增id。

@Table(database = MyDatabase.class)public class ContentBean extends BaseModel {    @PrimaryKey(autoincrement = true)    Long id;    @Column    String name;    @Column    String edg;    @Column    String sexy;    @Column    String gg;    //省略Getter and  Setter。。。}

     /**     * 保存一条     */    private void saveSingle() {        ContentBean mBean = new ContentBean();        mBean.setEdg("18");        mBean.setName("张三");        mBean.setSexy("男");        mBean.setGg("gg");        mBean.save();    }    /**     * 读取一条     */    private void readSingle() {        ContentBean contentBeanList = SQLite.select().                from(ContentBean.class).querySingle();        if (contentBeanList != null)            Log.d(TAG, "contentBeanList: " + contentBeanList.getEmail());    }    /**     * 保存多条     */    private void saveList() {        FlowManager.getDatabase(MyDatabase.class)                .getTransactionManager()                .getSaveQueue()                .addAll2(SourceList.getList());    }//还需要执行下面操作    FlowManager.getDatabase(MyDatabase.class).getTransactionManager().getSaveQueue().purgeQueue();    /**     * 读取多条     */    private void readList() {        List<ContentBean> contentBeanList = SQLite.select().                from(ContentBean.class).queryList();        Log.d(TAG, "contentBeanList.size  is:: " + contentBeanList.size());        if (contentBeanList.size() > 1)            Log.d(TAG, "contentBeanList: 1::" + contentBeanList.get(0).getName());    }

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