安卓中的刮刮卡视图，示例

xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">
    
    <com.cooltechworks.views.ScratchImageView
        android:id="@+id/idScratchCardIv"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:layout_centerInParent="true"
        android:background="@color/white"
        android:src="@drawable/gfgimage" />
RelativeLayout>


import android.os.Bundle;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import com.cooltechworks.views.ScratchImageView;
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // initializing our scratchcardimageview.
        ScratchImageView scratchImageView = findViewById(R.id.idScratchCardIv);
        scratchImageView.setRevealListener(new ScratchImageView.IRevealListener() {
            @Override
            public void onRevealed(ScratchImageView iv) {
                // this method is called after revealing the image.
                Toast.makeText(MainActivity.this, "image is revealed", Toast.LENGTH_SHORT).show();
            }
            @Override
            public void onRevealPercentChangedListener(ScratchImageView siv, float percent) {
                // we can check how much percentage of 
                // image is revealed using percent variable
            }
        });
    }
}