OrenBochman

RecyclerView - Adding Dividers

How to add deviders between recyclerview items.

Based on the book Pro Android UI.

OrenBochman

RecyclerView - Swipe to refresh Stub

1. add viewgroup to activity
2. add handler mySwipeRefreshLayout.setOnRefreshListener to the recycer
3. add a menu item - for accessibility
4. add menu handler

c.f. https://developer.android.com/training/swipe/add-swipe-interface

OrenBochman

Improve code inspection with annotations

Depend on support-annotations

dependencies { implementation 'com.android.support:support-annotations:24.2.0' }

see also:

• https://developer.android.com/studio/write/annotations
• https://github.com/androidannotations/androidannotations/wiki/Cookbook

OrenBochman

Gist Search Cheatsheet

Enter this in the search box along with your search terms:

Get all gists from the user santisbon.
user:orenbochman

Find all gists with a .yml extension.
extension:yml

OrenBochman

Intents

Explicit v.s. Implicit

A quick demo of implicit and explicit intents.

Requesting data from another activity

1. Use startActivityForResult() to start the second Activity
2. To return data from the second Activity:

OrenBochman

Accelerating Gradle Builds

OrenBochman

Camera - Capture an image with an app on Android

code to access an external app's camera capabilities

OrenBochman

Libraries Android - A quick reference guide

I generally try to avoid libraries and code I did not write/test but here is a quick refrence for:

Library	Library	Library
Android Annotations	Buterknife	Dagger2
EventBus	FirbaseJobDispatcher	Glide
Icepick	JodaTime	LeakCanary
ObjectBox	OkHttpClient	Moshi

OrenBochman

Using Intents

1. shareing
2. sms
3. select image

OrenBochman

Activity that adapts

To develop great UI the designer impliments different layouts for different breakpoints.

Two Layout

• orientation:vertical (1st break point) - master_frag and detail_frag are each in a FragmentActiity
• orientation:horizontal (2nd break point) - master_detail_act.xml incorprating master_frag and detail_frag fragments

1. Detection is done in onCreate is testing for the articleView View in the detail fragment. if it is available we are in master/detail layout.