安卓（xUtils）

最新推荐文章于 2021-06-03 00:02:12 发布

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最新推荐文章于 2021-06-03 00:02:12 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/a_BinKiss/article/details/94764418

加载布局、数据库（增删改查）、load下载、图片加载

依赖

// An highlighted block
implementation 'org.xutils:xutils:3.5.0'

清单文件

在这里插入图片描述

效果图

在这里插入图片描述

Application初始化

// An highlighted block
package bw.com.Unit1.app;

import android.app.Application;

import org.xutils.x;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSession;

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        x.Ext.init(this);
        //可以进行debug测试
        x.Ext.setDebug(true);

        x.Ext.setDefaultHostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;//忽略https的校验
            }
        });
    }
}

主布局代码

// An highlighted block
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

   <Button
       android:id="@+id/button1"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:text="ViewUtils的使用"
       />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="HttpUtils的使用"
        />


    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="DownLoad的使用"
        />

    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="DBUtils的使用"
        />

    <Button
        android:id="@+id/button5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="BitmapUtils的使用"
        />

    <ImageView
        android:id="@+id/imageview"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

主类java代码

// An highlighted block
package bw.com.Unit1;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.view.annotation.ViewInject;
import org.xutils.x;

import bw.com.Unit1.app.HttpActivity;


@ContentView(R.layout.activity_main)
public class MainActivity extends AppCompatActivity {

    @ViewInject(R.id.imageview)
    private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        x.view().inject(this);

    }

    @Event({R.id.button1,R.id.button2,R.id.button3,R.id.button4})
    private void click(View view){

        Intent intent = new Intent();

        switch (view.getId()){
            case R.id.button1:
                intent.setClass(MainActivity.this,ViewActivity.class);
                break;
            case R.id.button2:
                intent.setClass(MainActivity.this, HttpActivity.class);
                break;
            case R.id.button3:
                intent.setClass(MainActivity.this, DownLoadActivity.class);
                break;
            case R.id.button4:
                intent.setClass(MainActivity.this, DBActivity.class);
                break;
        }

        startActivity(intent);
    }

    @Event(R.id.button5)
    private void getImageview(View view){
        x.image().bind(imageView,"https://images0.cnblogs.com/blog/651487/201501/281616176915467.jpg");
    }


}

ViewUtils

布局文件

// An highlighted block
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    tools:context=".ViewActivity">

    <Button
        android:id="@+id/btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="单击返回!"
        />

    <RadioButton
        android:id="@+id/rb"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="长按"
        />

    <CheckBox
        android:id="@+id/cb"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="选中与取消"
        />


</LinearLayout>

java代码

// An highlighted block
package bw.com.Unit1;

import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.Toast;

import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.view.annotation.ViewInject;
import org.xutils.x;


@ContentView(R.layout.activity_view)
public class ViewActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        x.view().inject(ViewActivity.this);

    }

    @Event(R.id.btn)
    private void click(View view){
        switch (view.getId()){
            case R.id.btn:
                Toast.makeText(this, "点击成功!", Toast.LENGTH_SHORT).show();
                finish();
                break;
        }
    }

    @Event(value = {R.id.rb,},type = View.OnLongClickListener.class)
    private boolean longclick(View view){

        Toast.makeText(this, "单选长按成功!", Toast.LENGTH_SHORT).show();

        return true;
    }

    @Event(value = {R.id.cb,},type = CompoundButton.OnCheckedChangeListener.class)
    private void checkclick(CompoundButton compoundButton,boolean b){
        if (b){
            Toast.makeText(this, "选中了!", Toast.LENGTH_SHORT).show();
        }else{
            Toast.makeText(this, "取消了", Toast.LENGTH_SHORT).show();
        }
    }
}

HttpUtils

布局文件

// An highlighted block
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".app.HttpActivity">

    <Button
        android:id="@+id/getBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="GET请求"
        />

    <Button
        android:id="@+id/postBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="POST请求"
        />

</LinearLayout>

Java代码

// An highlighted block
package bw.com.Unit1.app;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;

import org.xutils.common.Callback;
import org.xutils.http.RequestParams;
import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.x;

import bw.com.Unit1.R;


@ContentView(R.layout.activity_http)
public class HttpActivity extends AppCompatActivity {
    String url = "http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=10&page=1";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        x.view().inject(this);

    }

    @Event(R.id.getBtn)
    private void GETHttp(View view){
        x.http().get(new RequestParams(url), new Callback.CommonCallback<String>() {
            @Override
            public void onSuccess(String result) {
                Log.e("###",result);
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {

            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
    }

    @Event(R.id.postBtn)
    private void POSTHttp(View view){
        RequestParams requestParams = new RequestParams("https://www.apiopen.top/createUser?key=00d91e8e0cca2b76f515926a36db68f5&");
        requestParams.addQueryStringParameter("phone","zzz");
        requestParams.addQueryStringParameter("passwd","123");
        x.http().post(requestParams, new Callback.CommonCallback<String>() {
            @Override
            public void onSuccess(String result) {
                Log.e("@@@",result);
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {

            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
    }
}

DownLoad

布局文件

// An highlighted block
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".DownLoadActivity">

    <Button
        android:id="@+id/downBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="DownLoad下载"
        />

</LinearLayout>

Java代码

// An highlighted block
package bw.com.Unit1;

import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import org.xutils.common.Callback;
import org.xutils.http.RequestParams;
import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.x;

import java.io.File;

@ContentView(R.layout.activity_down_load)
public class DownLoadActivity extends AppCompatActivity {
    private static final String SAVEPATH = Environment.getExternalStorageDirectory()+"/qq.apk";
    private ProgressDialog progressDialog;
    private Callback.Cancelable cancelable;
    private String url = "http://softfile.3g.qq.com:8080/msoft/179/24659/43549/qq_hd_mini_1.4.apk";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        x.view().inject(this);

        initProgressDialog();

    }
    //创建一个带进度条的dialog
    private void initProgressDialog() {

        progressDialog = new ProgressDialog(DownLoadActivity.this);

        progressDialog.setTitle("下载APK");
        progressDialog.setMessage("下载中……");
        //设置样式
        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        //设置点击dialog外部不取消
        progressDialog.setCanceledOnTouchOutside(false);

        progressDialog.setButton(ProgressDialog.BUTTON_NEGATIVE, "暂停", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                    cancelable.cancel();//暂停
            }
        });

    }

    @Event(R.id.downBtn)
    private void DownLoad(View view){
        downloadApk();
    }

    private void downloadApk() {
        //设置参数
        RequestParams requestParams = new RequestParams();
        requestParams.setUri(url);
        //设置断点续传
        requestParams.setAutoRename(true);
        //设置是否可以中断下载
        requestParams.setCancelFast(true);
        //保存路径
        requestParams.setSaveFilePath(SAVEPATH);

        cancelable = x.http().get(requestParams, new Callback.ProgressCallback<File>() {
            @Override
            public void onSuccess(File result) {
                Toast.makeText(DownLoadActivity.this, "下载完成！路径："+result.getAbsolutePath(), Toast.LENGTH_SHORT).show();

                //下载完成后自动安装
                Intent intent = new Intent();
                intent.setAction(Intent.ACTION_VIEW);
                intent.setDataAndType(Uri.fromFile(result),"application/vnd.android.package-archive");
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                DownLoadActivity.this.startActivity(intent);
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {
                ex.getStackTrace();
            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {
                progressDialog.cancel();
            }

            @Override
            public void onWaiting() {

            }
            //开始下载
            @Override
            public void onStarted() {
                progressDialog.show();
            }
            //显示进度
            @Override
            public void onLoading(long total, long current, boolean isDownloading) {
                    progressDialog.setProgress((int) (current*100/total));
            }
        });

    }
}

DBUtils

布局文件

// An highlighted block
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".DBActivity">

    <Button
        android:id="@+id/write_btn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="写入"
        />

    <Button
        android:id="@+id/read_btn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="读取"
        />

    <TextView
        android:id="@+id/text_show"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />



</LinearLayout>

数据库类

// An highlighted block
package bw.com.Unit1.db;

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

@Table(name = "UserDButils")
public class UserDButils {
    //id必须写
    @Column(name = "id",isId = true)
    private int id;

    @Column(name = "name")
    private String name;

    @Column(name = "age")
    private int age;

    public int getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "UserDButils{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

Java代码

// An highlighted block
package bw.com.Unit1;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import org.xutils.DbManager;
import org.xutils.ex.DbException;
import org.xutils.view.annotation.ContentView;
import org.xutils.view.annotation.Event;
import org.xutils.view.annotation.ViewInject;
import org.xutils.x;

import bw.com.Unit1.db.UserDButils;

@ContentView(R.layout.activity_db)
public class DBActivity extends AppCompatActivity {

    private DbManager.DaoConfig daoConfig;
    private DbManager dbManager;

    @ViewInject(R.id.text_show)
    private TextView textView;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        x.view().inject(this);

        //创建表
        initDB();

    }

    private void initDB() {

        daoConfig = new DbManager.DaoConfig();
        //设置数据库表名称
        daoConfig.setDbName("UserDButils");
        //设置版本号
        daoConfig.setDbVersion(1);
        dbManager = x.getDb(daoConfig);
    }


    @Event({R.id.read_btn,R.id.write_btn})
    private void readTable(View view){

        switch (view.getId()){
            case R.id.read_btn:
                readDB();
                break;
            case R.id.write_btn:
                writeDB();
                break;
        }
    }

    private void writeDB() {
        UserDButils userDButils = new UserDButils();

        userDButils.setId(1);
        userDButils.setName("张三");
        userDButils.setAge(21);

        try {
            dbManager.save(userDButils);
        } catch (DbException e) {
            e.printStackTrace();
        }

    }

    private void readDB() {

        try {
            UserDButils first = dbManager.selector(UserDButils.class).findFirst();

            textView.setText(first.toString());

        } catch (DbException e) {
            e.printStackTrace();
        }
    }
    
	private void update() {

        WhereBuilder whereBuilder = WhereBuilder.b();
        whereBuilder.and("name","=","李四");
        KeyValue keyValue = new KeyValue("name","钱七");
        try {
            dbManager.update(UserDb.class, whereBuilder,keyValue);
            Log.e("修改","修改成功!");
        } catch (DbException e) {
            e.printStackTrace();
        }

    }

    private void delete() {

        WhereBuilder whereBuilder = WhereBuilder.b();
        whereBuilder.and("name","=","张三");
        try {
            dbManager.delete(UserDb.class,whereBuilder);
            Log.e("删除","删除成功！");
        } catch (DbException e) {
            e.printStackTrace();
        }


}

BitmapUtils

Java代码

// An highlighted block
x.image().bind(imageView,"https://images0.cnblogs.com/blog/651487/201501/281616176915467.jpg");