Most Important Links for Learning Android

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মন্তব্যসমূহ

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Fragment

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Fragment or Sub Activity: A part of an activity. https://developer.android.com/guide/components/fragments.html Why we use Fragment:            1. Space Utilize            2. Code Reuse. cause fragment can be used just as a template.  [ ex: login form use in 5 activity but code once ] we can change a part of any activity without changing full activity... that part of activity name is fragment. A  Fragment  represents a behavior or a portion of user interface in an  Activity . You can combine multiple fragments in a single activity to build a multi-pane UI and reuse a fragment in multiple activities. You can think of a fragment as a modular section of an activity, which has its own lifecycle, receives its own input events, and which you can add or remove while the activity is running (sort of like a "sub activity" that you can reuse in different activities). the perfect example for a fragmen...
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Firebase authentication

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Firebase authentication: Part-1: Create Firebase Project and connect it to your app. check... Part-2: Registration. 1. In firebase, there are many ways of registration.if we go firebase console, we can see these ways.. we should enable one of their Sign-in methods first. 2. Design UI for Signup Page: 3. Now we should do some code for receiving data/email & password from those EditText and write some code for Firebase authentication by Email & Password. Declare & Initialize  mAuth. Pass the Email & Password to Firebase. 4. Above 1st we get the Email & Password from input Field. then pass them as a parameter of mAuth .createUserWithEmailAndPassword(email, password)   method. here is the full java class: package com.nirjhor3029.firebaseauthentication; import android.content.Intent; import android.os.Bundle; import android.support.annotation.NonNull ; import android.support.v7.app.AppCompatActivity; impo...
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Android Retrofit - PRABEESH R K

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Some information we should know  []  → Means JSON Array. {} → Means JSON object. when we will try to fetch data from Any JSON or from any server then we should check very carefully that Scripts and should understand the type of JSON. is that starts with JSON Array? OR JSON Object? flowers.json      [ start with array / list of objects ]  Vs yahoo weather api   [ start with the object named query which includes many objects. ] 🔑Add internet permission in manifest file.  🔑Add some Dependencies : compile 'com.squareup.retrofit2:retrofit:2.2.0' compile 'com.squareup.picasso:picasso:2.5.2' compile 'com.squareup.retrofit2:converter-gson:2.2.0' OR compile 'com.squareup.retrofit2:retrofit:2.3.0' compile 'com.squareup.picasso:picasso:2.5.2' compile 'com.squareup.retrofit2:converter-gson:2.3.0'
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