simple rxjava code programming style

最新推荐文章于 2025-09-06 09:33:29 发布

转载最新推荐文章于 2025-09-06 09:33:29 发布 · 78 阅读

0 ·

CC 4.0 BY-SA版权

原文链接：https://yq.aliyun.com/articles/615746

文章标签：

#java #移动开发

本文介绍了一个使用RxJava实现的简易编程案例，在Android环境中通过Observable和DisposableObserver进行异步任务处理，展示了如何调用Callable创建数据源并更新UI。

simple rxjava code programming style

package zhangphil.rx;

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

import java.util.concurrent.Callable;

import io.reactivex.Observable;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.observers.DisposableObserver;
import io.reactivex.schedulers.Schedulers;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final TextView text = findViewById(R.id.text);

        DisposableObserver mDisposableObserver = new DisposableObserver<String>() {
            @Override
            public void onNext(String s) {
                text.setText(s);
            }

            @Override
            public void onComplete() {

            }

            @Override
            public void onError(Throwable e) {

            }
        };

        Observable.fromCallable(new Callable<String>() {
            @Override
            public String call() throws Exception {
                SystemClock.sleep(10000);

                return "zhang phil";
            }
        }).subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(mDisposableObserver);
    }
}

in app's gradle,need ref:

    compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
    compile 'io.reactivex.rxjava2:rxjava:2.1.8'