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Android: Sending Email using Intents

Source : https://medium.com/@cketti/android-sending-email-using-intents-3da63662c58f#.ug8c5jq9s

Thanks to https://medium.com/@cketti

Many things on Android are as easy as starting an Activity using the right Intent. Sending an email to a specific recipient is one of those things.
Sadly, there is much bad advice out there on how to send emails using Intents. Because I write an open source email app I have a pretty good understanding of what goes on behind the scenes. That’s why I believe I know better than all those other people :)

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Android Studio Shortcut for Mac OS X

Android Studio have many keyboard shortcuts that helps developers to develop android application. Let me show you some of the shortcuts for android studio for Mac user.

Android Studio Command Type Mac OS X Shortcuts
Reformat code OPTION + CMD + L
Show selected API documentation F1 / FUNCTION + F1
Generate Source Code CMD + N
Jump to source CMD + DOWN ARROW KEY
Delete Line CMD + BACKSPACE
Search by symbol name OPTION + CMD + O
Build CMD + F9
Build and Run CTRL + R
Toggle Project Sidebar Visibility CMD + 1
Open Class CMD + O
Open File ( including resources) CMD + SHIFT + O
Recent Files Opened CMD + E
Recently edited files CMD + SHIFT + E
Previous Next/Previous Error F2 / FUNCTION F2
Last Edited Location CMD + SHIFT + BACKSPACE
Last Location CMD + [ and CMD + ]
Go to Declaration CMD + B
Go to Super CMD + Y
Next Word Navigation ALT + LEFT/RIGHT ARROW KEY
Find CMD + F
Find in Path SHIFT + CMD + F
Refactor Class, Method CTRL + T

Source: http://javatechig.com/android/android-studio-shortcuts-for-mac-os-x-users

Android Studio Tips Of the Day

Now I’m using Android Studio to develop Android Application. Eclipse not good enough for me to develop android application, sorry to say especially for eclipse’s fans (Because Eclipse ever delete all my folders inside the workspace folder for no reason – not only once). And also Eclipse 3.6 (Helios) is no longer supported with the latest version of ADT (Check Here). With Android Studio, you can easily import library with Gradle with simple way.

So I will share you about Android Studio have many shortcut / tips to help you develop Android Application. Here tips of the day From Philippe Breault (Thanks to him) and here the Wiki that collects all current tips from him (on Pavlos Petros Tournaris’s Github -Thanks to Pavlos-Petros Tournaris) Or maybe you can visit Developerphil’s Website Part 1Part 2, Part 3, Part 4, Part 5, Part 6 and also you can see every day Android Studio tips from Philippe Breault’s Google+).

Cheers guys and happy coding :)

Parcelable or Serializable

We all know we cannot just pass object references to activities or fragments, we must put those in an Intent / Bundle. We only have two options, with Parcelable or Serializable. How about the performance / speed?

Here the results:

Nexus 10
Serializable: 1.0004ms, Parcelable: 0.0850ms – 10.16x improvement.

Nexus 4
Serializable: 1.8539ms – Parcelable: 0.1824ms – 11.80x improvement.

Desire Z
Serializable: 5.1224ms – Parcelable: 0.2938ms – 17.36x improvement.

Source By : http://www.developerphil.com/parcelable-vs-serializable/

Thanks to Philippe Breault.

And here the Source to download

Solve Alarm Manager or Notification Firing Randomly

One time I develop an application that requires trigger a notification every specific time. Then I create Alarm Manager for trigger Android Notification, but i got my Alarm Manager firing random time after first notification. So my notification sometimes show at random time.

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Android Get Application Context

If we code inside an Activity and we need the application context we can use getApplicationContext().

Inside an Activity we can use getApplicationContext() if we need the application context. But what if we are not inside an Activity and we need that? I will explain how you can get the context of the application outside an Activity with simple coding.

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Better Performance With Jackson and Bulk Insert

Once time, I make android application and requires pull data from web servers (Json). And then i do HttpGET to load the data from web server (big enough), after that i must insert the data into database. It takes 12-15 minutes WTF..,  how can i used the application if it takes so long?

Then i found Jackson Library And Use Bulk Insert after that it takes only 10 – 15 seconds. Very Amazing :)

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