Java tutorial
/* * Copyright (C) 2015 The Android Open Source Project * * 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 com.google.android.car.kitchensink.job; import android.app.job.JobInfo; import android.app.job.JobScheduler; import android.content.ComponentName; import android.content.Context; import android.content.SharedPreferences; import android.os.Bundle; import android.os.PersistableBundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.RadioGroup; import android.widget.TextView; import android.widget.Toast; import com.google.android.car.kitchensink.R; import java.util.List; public class JobSchedulerFragment extends Fragment { private static final String TAG = "JobSchedulerFragment"; private static final String PREFS_NEXT_JOB_ID = "next_job_id"; private Button mScheduleButton; private Button mRefreshButton; private Button mCancelButton; private CheckBox mRequireCharging; private CheckBox mRequireIdle; private CheckBox mRequirePersisted; private RadioGroup mNetworkGroup; private EditText mDishNum; private TextView mJobInfo; private JobScheduler mJobScheduler; @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View v = inflater.inflate(R.layout.job_scheduler, container, false); mScheduleButton = (Button) v.findViewById(R.id.schedule_button); mScheduleButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { scheduleJob(); } }); mRefreshButton = (Button) v.findViewById(R.id.refresh_button); mRefreshButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { refreshCurrentJobs(); } }); mNetworkGroup = (RadioGroup) v.findViewById(R.id.network_group); mDishNum = (EditText) v.findViewById(R.id.dish_num); mRequireCharging = (CheckBox) v.findViewById(R.id.require_charging); mRequireIdle = (CheckBox) v.findViewById(R.id.require_idle); mRequirePersisted = (CheckBox) v.findViewById(R.id.require_persisted); mJobScheduler = (JobScheduler) getContext().getSystemService(Context.JOB_SCHEDULER_SERVICE); mJobInfo = (TextView) v.findViewById(R.id.current_jobs); mCancelButton = (Button) v.findViewById(R.id.cancel_button); mCancelButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { mJobScheduler.cancelAll(); refreshCurrentJobs(); } }); return v; } @Override public void onResume() { super.onResume(); refreshCurrentJobs(); } private void refreshCurrentJobs() { StringBuilder sb = new StringBuilder(); List<JobInfo> jobs = mJobScheduler.getAllPendingJobs(); for (JobInfo job : jobs) { sb.append("JobId: "); sb.append(job.getId()); sb.append("\nDishCount: "); sb.append(job.getExtras().getInt(DishService.EXTRA_DISH_COUNT, 0)); sb.append("\n"); } mJobInfo.setText(sb.toString()); } private void scheduleJob() { ComponentName jobComponentName = new ComponentName(getContext(), DishService.class); SharedPreferences prefs = getContext().getSharedPreferences(PREFS_NEXT_JOB_ID, Context.MODE_PRIVATE); int jobId = prefs.getInt(PREFS_NEXT_JOB_ID, 0); PersistableBundle bundle = new PersistableBundle(); int count = 50; try { count = Integer.valueOf(mDishNum.getText().toString()); } catch (NumberFormatException e) { Log.e(TAG, "NOT A NUMBER!!!"); } int selected = mNetworkGroup.getCheckedRadioButtonId(); int networkType = JobInfo.NETWORK_TYPE_ANY; switch (selected) { case R.id.network_none: networkType = JobInfo.NETWORK_TYPE_NONE; break; case R.id.network_unmetered: networkType = JobInfo.NETWORK_TYPE_UNMETERED; break; case R.id.network_any: networkType = JobInfo.NETWORK_TYPE_ANY; break; } bundle.putInt(DishService.EXTRA_DISH_COUNT, count); JobInfo jobInfo = new JobInfo.Builder(jobId, jobComponentName) .setRequiresCharging(mRequireCharging.isChecked()).setRequiresDeviceIdle(mRequireIdle.isChecked()) // TODO: figure out why we crash here even we hold // the RECEIVE_BOOT_COMPLETE permission //.setPersisted(mRequirePersisted.isChecked()) .setExtras(bundle).setRequiredNetworkType(networkType).build(); mJobScheduler.schedule(jobInfo); Toast.makeText(getContext(), "Scheduled: " + jobInfo, Toast.LENGTH_LONG).show(); Log.d(TAG, "Scheduled a job: " + jobInfo); SharedPreferences.Editor editor = prefs.edit(); editor.putInt(PREFS_NEXT_JOB_ID, jobId + 1); editor.commit(); refreshCurrentJobs(); } }