Android App Development - Class 1 (Using Button)

[Awais King]

Assalam-o-alaikum!

Kaise hain sab?
Sab theek hi honge.


Aaj main aap sab ko Android ki applications ko develop karna sikhaunga.

Requirements:
1. SDK with ADT Bundle (Download here: http://developer.android.com/sdk/index.html)
2. And a little knowledge to Java development


Here is basic information about Android:
Q.1: Android kia hai?
Android Linux-base operating system hai, jo touchscreen mobile devices jaise smartphones aur tablet computers ke liye bani hai.
Q.2: Android SDK kia hai?
Q.2(a): What is SDK
SDK ka full form Software Development Kit hai. Is ke through aap kisi operating system ke liye softwares bana sakte hain.
Q.2(b): [I]What is Android SDK[/]
Android SDK ke through aap Android operating system ke liye nayi applications bana sakte hain. Android applications aam tor par Java main banai jati hain, lekin ab Android applications doosri languages main bhi banai ja sakti hain (like Python, C, C++, C#, Perl, etc)

Ab start karte hain
Sab se pahle aap Eclipse ko open karen. Phir neeche diye hoe steps ko follow kijiye:

1: File option par click kijiye -> ]New.
2: Phir Android Application Project par click kijiye.

1: Yahan 'Application Name' dijiye, ye install karne ke baad Launcher main show hoga
2: Yahan 'Project Name' dijiye, ye Eclipse ke Project Explorer main show hoga.
3: Yahan 'Package Name' dijiye, ye APK file ka package name hai isi se us ki pachan hogi.

Is step main aap Next button par click kijiye.

Aap chahen to apni custom icon bhi set kar sakte hain (only PNG files are supported), is ke liye aap Browse button par click kijiye.
Phir aap Next button par click kijiye.

1: Pahle aap Create Activity ko check karden.
2: Phir Blank Activity select kijiye.
3: Phir Next button par click kijiye.

Continues to PART 2

[Awais King]

1: Yahan 'Activity Name(Class Name)' set kijiye.
2: Yahan 'Layout File Name' set kijiye.
3: Phir Next button par click kijiye.

1: Ye aap ka Activity Name(Class Name) hai, jo hum ne pichhle step main set kia tha.
2: Ye aap ka Layout File Name hai, jo hum ne pichhle step main set kia tha.

Yahan maine 3 Buttons aur 1 TextView(Label) add kardi hain, jin ki Layout IDs, Right side ke panel main dekh sakte hain.
Main 'Change Text' button ka tutorial bata raha hoon, ke kaise hum kisi TextView(Label) ka Text change kar sakte hain.

Is step main maine Activity Class File khola hai, aur us main kuch code lines likhi hain.
Yahan onCreate(Bundle savedInstanceState) action hai, ke jab Application show ho to ye bhi show ho jae.
And setContentView(R.layout.main_layout) means, ye CLASS file main_layout se connected hai.

Yahan aap dekh sakte hain ke pahle main import android.widget.* likha hai, ye elements ke actions ko CLASS file se connect kar deta hai.
Ab neeche main 'Button btnChangeText = (Button) findViewById(R.id.button1)' likha hai, aap us ki information image main dekh sakte hain.

Yahan aap dekh sakte hain, ke main textView1 ki ID ko txtChangeText se conect kia hai.
Jaisa ki aap image main dekh sakte hain, kaise textView1 ka text change karte hain.

Phir usko Run kijiye (Hotkey: CTRL+F11)
1: Android Application ko select kijiye.
2: OK button par click kijiye.

Continues to PART 3

[Awais King]

1: Yes par click kijiye.
2: Phir aik dialogue show hoga jahan aap ko New button par click karna hai.

Aap apne hisab se yahan settings kar sakte hain, uske baad OK par click kijiye.
Phir se usko Run kijiye (Hotkey: CTRL+F11)

Phir aap ki application aik Android Emulator main kuch der ke baad open ho jae gi.
Test karne ke liye aap Change Text button par click kar ke check kar sakte hain.

Before clicking Change Text button:

Before clicking Change Text button:

[M IMRAN]

Achi Sharing hai
.........

[Awais King]

Originally Posted by M IMRAN

Achi Sharing hai
.........

Thank you bro!

[The Bot]

good sharing,
keep it up.

[Awais King]

Originally Posted by The Bot

good sharing,
keep it up.

Thank you bro!

[zafar bhutta]

nice

[Asif Chaudhary]

Shukria bro

[Awais King]

Originally Posted by zafar bhutta

nice

Originally Posted by Asif Chaudhary

Shukria bro

Aap dono ka buht buht shukria!

[Awais King]

Originally Posted by sumbal

Nice sharing thanks

You're welcome!

[Sniper]

Sharing tu achi hai but spam post hai. Kisi dosre form ka watermark dekha ja sakta hai.

[smartyounus]

بہت اچھی شیئرنگ کی ہے آ پ نے جا ری رکھیں شکر یہ آ پ اگلی شیئرنگ کا انتظا ر ہے گا

[Awais King]

Originally Posted by smartyounus

بہت اچھی شیئرنگ کی ہے آ پ نے جا ری رکھیں شکر یہ آ پ اگلی شیئرنگ کا انتظا ر ہے گا

Thank you very much bro!

[Moqaddas Ali]

Very nice.

[Awais King]

Originally Posted by Moqaddas Ali

Very nice.

Thank you

[TariqRaheel]

اچھی شییئرنگ کی آپ نے
شکریہ