Java tutorial
/* * Copyright (C) 2016 Bjrn Quentin * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package de.mobilej.thinrsample; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.TextView; import org.json.JSONObject; import de.mobilej.thinr.Thinr; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.Response; public class MainActivity extends Activity { private TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textView = (TextView) findViewById(R.id.textView); View button = findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Thinr.task(MainActivity.this, "getQOTD", MainActivity.class, Void.class).onMain((target, param) -> { target.textView.setText(target.getApplicationContext().getString(R.string.loading_message)); return null; }).inBackground((appCtx, param, flowControl) -> { OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder().url("http://api.icndb.com/jokes/random").build(); try { Response response = client.newCall(request).execute(); JSONObject json = new JSONObject(response.body().string()); return json.getJSONObject("value").getString("joke"); } catch (Exception e) { return null; } }).endsOnMain((target, qotd) -> { if (qotd != null) { target.textView.setText(qotd); } else { target.textView.setText(target.getApplicationContext().getString(R.string.error_message)); } }).execute(null, "MainActivity"); } }); } @Override protected void onResume() { super.onResume(); Thinr.onResume("MainActivity", this); } @Override protected void onPause() { Thinr.onPause("MainActivity"); super.onPause(); } }