mistrydarshan99

/*
 * Copyright 2018 Google LLC
 *
 * 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

mistrydarshan99

/*
 * Copyright 2018 Google, Inc.
 *
 * 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

mistrydarshan99

/*
 * Copyright 2016 Google Inc.
 *
 * 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

mistrydarshan99

package com.jumpbyte.webserver;

import android.content.Context;
import android.util.Log;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;

mistrydarshan99

import android.app.Activity;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.IBinder;
import android.support.v4.content.LocalBroadcastManager;

mistrydarshan99

• In general you want to try and put things in onStart and onStop for logical start and stops.

Activity

onCreate

• Dagger inject self into graph
• setContentView(R.layout.xxx)
• Butterknife.bind(this)
• RxJava CompositeSubscription.add (if NON UI related work being done)

onStart

mistrydarshan99

 
public class SomeFragment extends Fragment {
 
	MapView mapView;
	GoogleMap map;
 
	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
		View v = inflater.inflate(R.layout.some_layout, container, false);
 

mistrydarshan99

package com.example.testSingleton;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;

public class ActivityA extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {

mistrydarshan99

Another series: DevBytes: Efficient Data Transfers

Network Performance 101

• Reduce time between when user wants and gets data.
• Reduce radio active time and fetch less data.
• Never poll! GCM/signaling is better. Reduce frequency. Batch + prefetch.
• Should use binary format instead of JSON, etc.

Battery Drain and Networking

mistrydarshan99

// The flow starts in onReadClick

import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.provider.ContactsContract;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;