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Practice07MatrixTranslateView.java
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Practice07MatrixTranslateView.java
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package com.geekholt.practiceui.view.lesson4;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import androidx.annotation.Nullable;
import android.util.AttributeSet;
import android.view.View;
import com.geekholt.practiceui.R;
public class Practice07MatrixTranslateView extends View {
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
Bitmap bitmap;
Point point1 = new Point(200, 200);
Point point2 = new Point(600, 200);
Matrix matrix = new Matrix();
public Practice07MatrixTranslateView(Context context) {
super(context);
}
public Practice07MatrixTranslateView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
}
public Practice07MatrixTranslateView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
{
bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.maps);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.save();
matrix.reset();
matrix.postTranslate(-100, -100);
canvas.concat(matrix);
canvas.drawBitmap(bitmap, point1.x, point1.y, paint);
canvas.restore();
canvas.save();
matrix.reset();
matrix.postTranslate(200, 0);
canvas.concat(matrix);
canvas.drawBitmap(bitmap, point2.x, point2.y, paint);
canvas.restore();
}
}