
- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to add picasso library in android studio?
Before getting into picasso library example, we should know about picasso. Picasso is image processing library and developed by Square Inc. In older days we used to write lengthy of codes to grab image from server or do process., to optimize the process picasso introduced.
This example demonstrate about how to integrate picasso library in android studio.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code in build.gradle.
apply plugin: 'com.android.application' android { compileSdkVersion 28 defaultConfig { applicationId "com.example.andy.myapplication" minSdkVersion 15 targetSdkVersion 28 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'com.android.support.constraint:constraint-layout:1.1.3' testImplementation 'junit:junit:4.12' implementation 'com.squareup.picasso3:picasso:2.71828' androidTestImplementation 'com.android.support.test:runner:1.0.2' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' }
Step 3 − Add the following code to res/layout/activity_main.xml.
<?xml version = "1.0" encoding = "utf-8"?> <android.support.constraint.ConstraintLayout 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"> <LinearLayout android:layout_width = "match_parent" android:layout_height = "match_parent" android:gravity = "center" android:orientation = "vertical"> <ImageView android:id = "@+id/imageView" android:layout_width = "wrap_content" android:layout_height = "wrap_content" /> </LinearLayout> </android.support.constraint.ConstraintLayout>
Step 4 − Add the following code to src/MainActivity.java
package com.example.andy.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.ImageView; import android.widget.Toast; import com.squareup.picasso.Callback; import com.squareup.picasso.Picasso; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ImageView imageView=findViewById(R.id.imageView); Picasso.with(this) .load("https://www.tutorialspoint.com/images/tp-logo-diamond.png") .placeholder(R.mipmap.ic_launcher) .resize(400, 400) .centerCrop() .rotate(0) .into(imageView, new Callback() { @Override public void onSuccess() { Toast.makeText(getApplicationContext(), "Fetched image from internet", Toast.LENGTH_SHORT).show(); } @Override public void onError() { Toast.makeText(getApplicationContext(), "An error occurred", Toast.LENGTH_SHORT).show(); } }); } }
In the above code we have so many methods are associate with picasso as shown below.
with() − we have to pass context for the piasso library
load() − what we want to load in picass we have to give that path either it is local directory or internet source
resize() − if you want to resize your image, you can do that with certain width and height.
centercrop() − you can do center crop to your image view.
rotate() − you can rotate your image as 0 to 360 degreees
into() − In which view you want to show, we have to give imageview paths and there are two call backs are available as shown below
onSuccess() − if image is successfully downloaded, you can do any action.
onError() − if image is not successfully downloaded, you can do any action.
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen.
Now you can observe the above image, The above image is cropped according to size which we have given in resize(). now we have removed the centerCrop() and resize method, it will show image with default size as shown below.
Click here to download the project code
- Related Questions & Answers
- How to add jar as library on Android Studio?
- How to use Android Picasso Library to download images?
- How to use Android Picasso library to download images using Kotlin?
- How do add dependency in Android studio
- How to work with Picasso in Android
- How to resize an image in Android using Picasso?
- How to Resize an image in Android using Picasso on Kotlin?
- How to use facebook SDK in Android studio?
- How to load an ImageView by URL on Android using Picasso?
- Android studio emulator question ?
- How do I load an Image by URL using Picasso Library on Kotlin?
- How to Speed up Gradle build process in Android Studio?
- Where and how to use to static variables in android studio?
- Fragment Tutorial with Example in Android Studio?
- Is it possible to add HTML5 validation to Visual Studio?