Android Development Posts
How to add Shadow and Text on ImageView in AndroidAndroid Development

How to add Shadow and Text on ImageView in AndroidAndroid Development
Basically, it works like a stack where each view is stacked on top of the other.
Create a drawable file for shadow view and assign the name image_shadow and add the below code in this file.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="10dp" />
<gradient
android:angle="270"
android:centerX="300%"
android:endColor="#99000000"
android:startColor="#00000000"
android:type="linear" />
<size
android:width="270dp"
android:height="60dp" />
<stroke
android:width="1dp"
android:color="#878787" />
</shape>
Now, open the XML file and add the below code into it, and set this drawable file as view background.
<androidx.appcompat.widget.LinearLayoutCompat
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".MainActivity">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.appcompat.widget.AppCompatImageView
android:id="@+id/imageView"
android:layout_width="250dp"
android:layout_height="250dp"
android:scaleType="centerCrop"
android:src="@drawable/shopping_image"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<View android:id="@+id/view"
android:layout_width="250dp"
android:layout_height="250dp"
android:background="@drawable/image_shadow"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<androidx.appcompat.widget.AppCompatTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:textColor="@android:color/white"
android:text="Write your text here"
android:textSize="25sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="@+id/view"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.appcompat.widget.LinearLayoutCompat>
That's it. You should be ready to go.
How can I run my app on my phone without USB connection with my pcAndroid Development

How can I run my app on my phone without USB connection with my pcAndroid Development
We will learn to run the app without connecting a USB cable in this blog. The main purpose of this blog is to let users run apps without any restriction. Sometimes if the cable is connected with the device and if the device cable gets disturbed then the app does not run properly.
Let's see how we can run the app without cable.
Step 1: Click File Menu => Settings
Step 2: Click Plugins
Step 3: Install ADB Wi-Fi Plugin
Notes:
- In the third image, I already installed the plugin in my android studio. But in your case, you may need to install it.
- Then your android studio restarts.
After the restart, your android studio will show the "ADB Wifi" option showing as per the following image
Click ADB Wifi and the below screen will be displayed.
- Click to connect
- Make sure your device and pc are connected to the same wifi. Otherwise, it will not get connected.
- You will need to connect one time when the android studio is opened for the first time.
How to Customize Snackbar in AndroidAndroid Development

How to Customize Snackbar in AndroidAndroid Development
Snackbars are fairly common in the Android app. Almost every app uses a snack bar to display some information about what's going on in the app. You can consider Snackbar as an alternative or the best version of Toasts in Android.
Step 1: Using a normal Snackbar
To use Snackbar in your app, you just have to have the material design dependency in your app. Add Material design dependency to your build.Gradle app-level.
dependencies {
implementation "com.google.android.material:$latest_version"
}
And then you can use the snack bar just like toast. For example:
Snackbar.make(view, "Show some message here", Snackbar.LENGTH_SHORT).show()
Step 2: Working with the MainActivity.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.application.snackbarapp.MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="show snackbar" />
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
Step 3: Creating a custom layout for a snack bar
Under Layout, the folder creates a layout for the snack bar that must be inflated when creating a snack bar under the mainactivity.java file.
import android.graphics.Color;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private CoordinatorLayout coordinatorLayout;
private Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
coordinatorLayout = findViewById(R.id.coordinatorLayout);
button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showSnackbar();
}
});
}
public void showSnackbar() {
Snackbar snackbar = Snackbar.make(coordinatorLayout, "Marked as Read", Snackbar.LENGTH_INDEFINITE)
.setAction("UNDO", new View.OnClickListener() {
@Override
public void onClick(View v) {
Snackbar snackbar1 = Snackbar.make(coordinatorLayout, "Undo successful", Snackbar.LENGTH_SHORT);
snackbar1.show();
}
})
.setActionTextColor(Color.RED);
snackbar.show();
}
}
How to create APK and Bundle in android javaAndroid Development

How to create APK and Bundle in android javaAndroid Development
While developing apps in Android Studio, developers can create an APK file and share it with other developers or to QA people for testing purposes.
APK can be created with two types:
- Debug APK
- Release APK
- Debug APK is very fast in building and Release APK is a little bit slow.
How to create a Release APK File:
- Flowing below all steps
- Open android studio
- Click Build on the toolbar
- Click Generate Signed Bundle/APK.
- Select APK
- Click the Next button
- After clicking the next button, you will see the following dialog.
- Click the "Create new..." button, highlighted in the following image by a red circle if you are creating an APK for the first time. Otherwise, you can choose from existing.
- It will open one another dialog box
- Key store path in select save location .jks file
- Fill in all the information
- Set a valid name for the key alias
- Set 100 as validity years
- Fill Certificate Information
- Click OK
- After you click on it, select "release" from the dialog box
- Select "V1 (Jar Signature)" & "V2 (Full APK Signature)" checkboxes
- Click Finish
- It will start the process of building your APK
How to create a debug .apk file
- Click Build and select Build Bundles(s)/APK(s)
- Select "Build APK(s)" from the dialog box
- It will start the process of building your debug APK file creating
Useful Shortcut Keys for Android StudioAndroid Development

Useful Shortcut Keys for Android StudioAndroid Development
Hello, friend, the shortcut way everyone likes. but remember a shortcut is to improve yourself and save time. It's a very good way. so in this blog learning the android studio shortcut key.use all short cut key and save time and performance improve
Search Keys:
- Shift+Shift — Search Everywhere
- Ctrl+F — Find Text within a Single File
- Ctrl+Shift+F-Find Text in All Files
- Ctrl+R — Replace Selected Text in a Single File
- Ctrl+Shift+R — Replace Selected Text in all Files (Be Careful while Using This)
- Ctrl+Shift+A —Search for IDE Commands
Navigation Keys:
- Ctrl+N — Navigate to Class
- Ctrl+Shift+N — Navigate to a File
- Ctrl+B — Jump to Declarations
- Alt+ ↑ — Jump to the Previous Method
- Alt+↓ — Jump to Next Method
- Ctrl+G — Jump to Line
- Ctrl+E — Recent Files
- Ctrl+Shift+Backspace — Jump to Last Edited Location
- Ctrl+B — Find Declarations
- Ctrl+Left Mouse(or)Ctrl+Alt+F7— Show Usage
- Alt + F7 / Ctrl + F7 — Find usages /Find usages in file
- Ctrl+Shift+B — Find Implementations
- F3 — Find Next
- Shift+F3 — Find Previous
BookMark Keys:
- F11 — Toggle bookmark
- Ctrl+F11 — Toggle bookmark with the mnemonic(0–9 or A-Z)
- Ctrl +(0–9) — Go to numbered bookmark
- Shift+F11 — Show all Bookmarks
- Ctrl + Shift + F7 — Highlight usages in file
Selection Keys:
- Ctrl + W — Extend selection (selects a word->line->method->Class )
- Ctrl +Shift+ W — Decrease Selection
- Alt + J — Select next occurrence
- Ctrl + Alt + Shift + J — Select all occurrences
- Alt + Shift + J — Unselect occurrence
- Ctrl+Shift+V — Paste from recent buffers (from a History of Copied Contents)
Editing Keys:
- Ctrl+F6 — Refactor Code
- Ctrl+D — Duplicate a Line/Selected part
- Ctrl+Y — Delete a Line/Selected part
- Ctrl+Q — Quick Documentation
- Ctrl + Space — Code completion
- Ctrl+Shift+Space — Smart code completion (by expected type removes unrelated suggestions)
- Alt+Insert — Generate Code
- Ctrl+J — Insert Live template
- Ctrl + O — Override methods
- Ctrl + I — Implement methods
- Ctrl + Alt + T — Surround with…
- Ctrl + / — Comment / uncomment with line comment
- Ctrl + Shift + / — Comment / uncomment with block comment
- Ctrl+Alt+L — Reformat code
Run:
- Ctrl + F9 — Compile and Run Make a project
- Ctrl + Shift + F9 — Compile selected file, package or module
- Shift + F10 — Run
- Shift + F9 — Debug
- Ctrl + Shift + F10 — Run context configuration from editor
Debugging:
- F8 / F7 — Step over / into
- Shift + F7 / Shift + F8 — Smart step into/Step out
- Alt + F9 — Run to cursor
- Alt + F8 — Evaluate expression
- F9 — Resume program
- Ctrl + F8 — Toggle breakpoint
- Ctrl + Shift + F8 — View breakpoints
How to Implement Splash Screen in AndroidAndroid Development

How to Implement Splash Screen in AndroidAndroid Development
What is a SplashScreen?
A splash screen is a screen that appears when you open an app on your mobile device. So, we can say that it is the first impression for the user. It is commonly used to show an application logo or an image associated with an application.
Implementation
So instead of using a layout file, we'll refer to the splash screen as the background of the activity theme. first, create an XML drawable splash_background.xml inside the res/drawable folder in
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@color/white" />
<item android:drawable="@drawable/ic_icon_vector" android:gravity="center" />
</layer-list>
next step, set splash_groundground.xml as the background for your splash activity in the theme. Add a new splash to your splash activity.
<!-- Splash Screen theme. -->
<style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
<item name="android:windowBackground">@drawable/splash_background></item>
</style>
Add your theme to AndroidManifest.xml as your splash activity theme.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.exmple.splash">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme">
<activity
android:name=".SplashActivity"
android:theme="@style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest></pre><div>
}
Create a blank activity for SplashActivity.java without XML. This class will only redirect to MainActivity.java.
public class SplashActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
startActivity(new Intent(SplashActivity.this, MainActivity.class));
finish();
}
}
How to Create Custom CardView in AndroidAndroid Development

How to Create Custom CardView in AndroidAndroid Development
Customized CardView
dependencies {
implementation
‘androidx.cardview:cardview:1.0.0’
}
res > drawable > New > Drawable Resource File.
background1.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">

background2.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
background3.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">

Now create a card view in the main XML file. Here I used LinearLayout as the root widget, after using the card view. Below the codes that give you an idea of how to customize the card.
You can change it according to your needs.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="173dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="20dp"
app:cardCornerRadius="8dp">
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg1"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="30dp"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Assam"
android:textColor="#000000"
android:textSize="22sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Current Location"
android:textColor="#000000"
android:textSize="14sp" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="30dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="30dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="25"
android:textColor="#000000"
android:textSize="28sp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="6dp"
android:text="o"
android:textColor="#000000"
android:textSize="13sp" />
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="18 %"
android:textColor="#000000"
android:textSize="14sp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginStart="6dp"
android:text="11.25 AM"
android:textColor="#000000"
android:textSize="14sp" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="173dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="20dp"
app:cardCornerRadius="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg2"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="30dp"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Delhi"
android:textColor="@color/white"
android:textSize="22sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2 days ago"
android:textColor="@color/white"
android:textSize="14sp" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="30dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="30dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="39"
android:textColor="@color/white"
android:textSize="28sp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="6dp"
android:text="o"
android:textColor="@color/white"
android:textSize="13sp" />
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="35 %"
android:textColor="@color/white"
android:textSize="14sp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginStart="6dp"
android:text="01.05 PM"
android:textColor="#D6D6D6"
android:textSize="14sp" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="173dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="20dp"
app:cardCornerRadius="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg3"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="30dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="30dp"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Darjeeling"
android:textColor="#000000"
android:textSize="22sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2 weeks ago"
android:textColor="#000000"
android:textSize="14sp" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="30dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="30dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="12"
android:textColor="#000000"
android:textSize="28sp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="6dp"
android:text="o"
android:textColor="#000000"
android:textSize="13sp" />
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="9 %"
android:textColor="#000000"
android:textSize="14sp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginStart="6dp"
android:text="05.00 AM"
android:textColor="#000000"
android:textSize="14sp" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>

How to create different type shape in android javaAndroid Development

How to create different type shape in android javaAndroid Development
Hello, wonderful friends today in this blog on learning in android XML files creating different types of shape creating. A shape is an XML file that defines a geometric shape, including strokes, colors, and gradients
First Creating .xml file:
- Open android studio
- Go to drawable
- Right-click drawable menu
Follow below image steps:
Now friend starts coding:
- Creating a capsule shape flow below code:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<corners
android:bottomLeftRadius="30dp"
android:bottomRightRadius="30dp"
android:radius="60dp"
android:topLeftRadius="30dp"
android:topRightRadius="30dp"/>
Corners:
The below image is showing the shape corner radius
Solid:
Solid means shape inner color “#CFCFCF”
Padding:
There is always developer confusion between padding and margin. Both provide extra space/gap inside or outside the container. In simple words, margin means to push outside, whereas padding means to push inside.
Size:
It's very simple shape width - height