Android XUtils3集成使用

一、xUtils3的引入

implementation 'org.xutils:xutils:3.9.0'

二、混淆配置

-keepattributes Signature,*Annotation*
-keep public class org.xutils.** {
    public protected *;
}
-keep public interface org.xutils.** {
    public protected *;
}
-keepclassmembers class * extends org.xutils.** {
    public protected *;
}
-keepclassmembers @org.xutils.db.annotation.* class * {*;}
-keepclassmembers @org.xutils.http.annotation.* class * {*;}
-keepclassmembers class * {
    @org.xutils.view.annotation.Event <methods>;
}

三、权限配置

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><!-- 可选 -->

四、初始化

// 在application的onCreate中初始化
@Override
public void onCreate() {
    super.onCreate();
    x.Ext.init(this);
    x.Ext.setDebug(BuildConfig.DEBUG); // 是否输出debug日志, 开启debug会影响性能.
    ...
}

五、使用

public static DbManager dbManager;
/**
 * xutil 数据库初始化
 */
public void initDb() {
    //本地数据的初始化
    try {
        DbManager.DaoConfig daoConfig = new DbManager.DaoConfig()
                .setDbDir(new File(Environment.getExternalStorageDirectory().toString() + "/DB/"))
                //设置数据库名
                .setDbName("area.db")
                .setTableCreateListener(new DbManager.TableCreateListener() {
                    @Override
                    public void onTableCreated(DbManager db, TableEntity<?> table) {
                    }
                })
                //设置数据库版本
                .setDbVersion(1)
                .setDbOpenListener(new DbManager.DbOpenListener() {
                    @Override
                    public void onDbOpened(DbManager db) {
                        db.getDatabase().enableWriteAheadLogging();
                        //开启WAL, 对写入加速提升巨大(作者原话)
                    }
                })
                .setDbUpgradeListener(new DbManager.DbUpgradeListener() {
                    @Override
                    public void onUpgrade(DbManager db, int oldVersion, int newVersion) {
                        //数据库升级操作
                    }
                });
        dbManager = x.getDb(daoConfig);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

import org.xutils.db.annotation.Column;
import org.xutils.db.annotation.Table;

/**
 * @author Administrator
 */
@Table(name = "area")
public class AreaBean {

    @Column(name = "id", isId = true, autoGen = true)
    private int id;
    @Column(name = "areaid")
    private int areaid;
    @Column(name = "name")
    private String name;
    @Column(name = "p_id")
    private int p_id;
    @Column(name = "level")
    private String level;


    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getAreaid() {
        return areaid;
    }

    public void setAreaid(int areaid) {
        this.areaid = areaid;
    }

    public String getName() {
        return name;
    }

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

    public int getP_id() {
        return p_id;
    }

    public void setP_id(int p_id) {
        this.p_id = p_id;
    }

    public String getLevel() {
        return level;
    }

    public void setLevel(String level) {
        this.level = level;
    }


}

// 增
AreaBean areaBean = new AreaBean();
areaBean.setAreaid("1000");
areaBean.setName("北京");
areaBean.setP_id(10001);
areaBean.setLevel(0);
dbManager.save(areaBean);

// 查
List<AreaBean> plist = dbManager.selector(AreaBean.class).where("level", "=", "province").findAll();

// 多条件检索
List<AreaBean> clist = dbManager.selector(AreaBean.class).where("level", "=", "city").where("p_id", "=", id).findAll();