EmojiImageView in Android

EmojiImageView in Android

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import androidx.appcompat.widget.AppCompatImageView;
import androidx.core.content.res.ResourcesCompat;

public class EmojiImageView extends AppCompatImageView {

    public EmojiImageView(Context context) {
        super(context);
    }

    public EmojiImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public void setEmoji(int codePoint) {
        Drawable emojiDrawable = ResourcesCompat.getDrawable(getResources(), getEmojiResource(codePoint), null);
        setImageDrawable(emojiDrawable);
    }

    private int getEmojiResource(int codePoint) {
        String codePointHex = Integer.toHexString(codePoint);
        String resourceName = "emoji_" + codePointHex;
        return getResources().getIdentifier(resourceName, "drawable", getContext().getPackageName());
    }

}

        

To use this EmojiImageView in your layout XML file, you can use the following code:

<com.yourpackage.EmojiImageView
    android:id="@+id/emoji_image_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

        

In your Java or Kotlin code, you can set the emoji image by calling the setEmoji method, like this:

EmojiImageView emojiImageView = findViewById(R.id.emoji_image_view);
emojiImageView.setEmoji(0x1F600); // set grinning face emoji

        

Remember to replace "yourpackage" with the package name of your app. Also, make sure that you have added the emoji image resources to the "res/drawable" folder with filenames in the format "emoji_{codepoint_hex}.xml".