Android 开源项目xUtils3使用教程

温馨提示

嘿嘿，老老实实来这里看也行：https://blog.csdn.net/qpc908694753/article/details/70463709

 

xUtils3的配置十分的简单：

2-1）使用Gradle构建时添加一下依赖即可

compile 'org.xutils:xutils:3.3.36'

2-2）加入权限

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

创建Application

public class MyApp extends Application {
@Override
public void onCreate() {
super.onCreate();
x.Ext.init(this);
x.Ext.setDebug(false); //输出debug日志，开启会影响性能
}

2-4）在AndroidManifest文件中注册MyApp

<application
android:name=".MyApp"
...
</application>

3.xUtils3网络模块的使用

RequestParams params = new RequestParams(url);
params.addQueryStringParameter("username","abc");
params.addQueryStringParameter("password","123");
x.http().get(params, new Callback.CommonCallback<String>() {
@Override
public void onSuccess(String result) {
//解析result
}
//请求异常后的回调方法
@Override
public void onError(Throwable ex, boolean isOnCallback) {
}
//主动调用取消请求的回调方法
@Override
public void onCancelled(CancelledException cex) {
}
@Override
public void onFinished() {
}
});

 

2）POST请求

 

RequestParams params = new RequestParams(url);
params.addBodyParameter("username","abc");
params.addParameter("password","123");
params.addHeader("head","android"); //为当前请求添加一个头
x.http().post(params, new Callback.CommonCallback<String>() {
    @Override
    public void onSuccess(String result) {
        //解析result
    }
    @Override
    public void onError(Throwable ex, boolean isOnCallback) {
    }
    @Override
    public void onCancelled(CancelledException cex) {
    }
    @Override
    public void onFinished() {
    }
});


4）上传文件

String path="/mnt/sdcard/Download/icon.jpg";
RequestParams params = new RequestParams(url);
params.setMultipart(true);
params.addBodyParameter("file",new File(path));
x.http().post(params, new Callback.CommonCallback<String>() {
    @Override
    public void onSuccess(String result) {
    }
    @Override
    public void onError(Throwable ex, boolean isOnCallback) {
    }
    @Override
    public void onCancelled(CancelledException cex) {
    }
    @Override
    public void onFinished() {
    }
});

5）下载文件

这里以下载apk为例进行说明，apk下载完成后，自动调用系统的安装方法。

 

 

url = "http://127.0.0.1/server/abc.apk";
RequestParams params = new RequestParams(url);
//自定义保存路径，Environment.getExternalStorageDirectory()：SD卡的根目录
params.setSaveFilePath(Environment.getExternalStorageDirectory()+"/myapp/");
//自动为文件命名
params.setAutoRename(true);
x.http().post(params, new Callback.ProgressCallback<File>() {
@Override
public void onSuccess(File result) {
//apk下载完成后，调用系统的安装方法
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(result), "application/vnd.android.package-archive");
getActivity().startActivity(intent);
}
@Override
public void onError(Throwable ex, boolean isOnCallback) {
}
@Override
public void onCancelled(CancelledException cex) {
}
@Override
public void onFinished() {
}
//网络请求之前回调
@Override
public void onWaiting() {
}
//网络请求开始的时候回调
@Override
public void onStarted() {
}
//下载的时候不断回调的方法
@Override
public void onLoading(long total, long current, boolean isDownloading) {
//当前进度和文件总大小
Log.i("JAVA","current："+ current +"，total："+total);
}
});