This example demonstrates how to work with Glide
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 to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="https://schemas.android.com/apk/res/android" xmlns:tools="https://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="16dp" tools:context=".MainActivity"> <Button android:id="@+id/btnDrawable" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentStart="true" android:layout_centerVertical="true" android:text="Drawable" /> <ImageView android:id="@+id/imageView" android:layout_width="200dp" android:layout_height="200dp" android:layout_centerHorizontal="true" android:src="@mipmap/ic_launcher" /> <Button android:id="@+id/btnPlaceholder" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/btnUrl" android:layout_alignBottom="@+id/btnUrl" android:layout_centerHorizontal="true" android:text="Placeholder" /> <Button android:id="@+id/btnUrl" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/btnDrawable" android:layout_alignBottom="@+id/btnDrawable" android:layout_alignParentEnd="true" android:text="URL" /> <Button android:id="@+id/btnError" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/btnDrawable" android:layout_alignParentStart="true" android:layout_marginTop="12dp" android:text="Error" /> <Button android:id="@+id/btnRotate" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/btnError" android:layout_alignBottom="@+id/btnError" android:layout_centerHorizontal="true" android:text="Rotate" /> <Button android:id="@+id/btnResize" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/btnRotate" android:layout_alignBottom="@+id/btnRotate" android:layout_alignParentEnd="true" android:text="Resize" /> </RelativeLayout>
Step 3 − Add the following code to src/MainActivity.java
package app.com.sample; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ImageView; import com.bumptech.glide.Glide; import com.bumptech.glide.request.RequestOptions; public class MainActivity extends AppCompatActivity implements View.OnClickListener { ImageView imageView; Button btnDrawableImage, btnUrlImage, btnErrorImage, btnPlaceholderImage, btnResizeImage, btnRotateImage; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { imageView = findViewById(R.id.imageView); btnDrawableImage = findViewById(R.id.btnDrawable); btnUrlImage = findViewById(R.id.btnUrl); btnPlaceholderImage = findViewById(R.id.btnPlaceholder); btnResizeImage = findViewById(R.id.btnResize); btnErrorImage = findViewById(R.id.btnError); btnRotateImage = findViewById(R.id.btnRotate); btnDrawableImage.setOnClickListener(this); btnPlaceholderImage.setOnClickListener(this); btnUrlImage.setOnClickListener(this); btnResizeImage.setOnClickListener(this); btnErrorImage.setOnClickListener(this); btnRotateImage.setOnClickListener(this); } @Override public void onClick(View view) { switch (view.getId()) { case R.id.btnDrawable: Glide.with(this).load(R.drawable.image).into(imageView); break; case R.id.btnPlaceholder: Glide.with(this).load("www.journaldev.com").placeholder(R.drawable.placeholder).into(imageView); break; case R.id.btnUrl: Glide.with(this).load("https://cdn.journaldev.com/wp-content/uploads/2017/01/android-constraint- layoutsdk-tool-install.png").placeholder(R.drawable.placeholder).into(imageView); break; case R.id.btnError: Glide.with(this).load("www.journaldev.com").placeholder(R.drawable.placeholder).error(R.drawable.err or).into(imageView); break; case R.id.btnResize: Glide.with(this).load(R.drawable.image).apply(new RequestOptions().override(200, 200)).into(imageView); break; case R.id.btnRotate: Glide.with(this).load(R.drawable.image).into(imageView); imageView.setRotation(90); break; } } }
Step 4 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="https://schemas.android.com/apk/res/android" package="app.com.sample"> <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/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
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 the android studio, open one of your project's activity files and click the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −