zoukankan      html  css  js  c++  java
  • Android图片的合成示例

    package com.example.demo;
    
    import android.os.Bundle;
    import android.app.Activity;
    import android.graphics.Bitmap;
    import android.graphics.BitmapFactory;
    import android.graphics.Canvas;
    import android.graphics.Color;
    import android.graphics.Matrix;
    import android.graphics.Paint;
    import android.widget.ImageView;
    
    public class MainActivity extends Activity {
    
        private ImageView iv;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            iv=(ImageView) findViewById(R.id.iv);
            //图片合成画布  先画图片A 再去画图片B        
        Bitmap bitmap=BitmapFactory.decodeResource(getResources(), R.drawable.aaaa);
        Bitmap alertBitmap=Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), bitmap.getConfig());
        
        Canvas canvas=new Canvas(alertBitmap);
        Paint paint=new Paint();
        paint.setColor(Color.BLACK);
        
        canvas.drawBitmap(bitmap, new Matrix(), paint);
        Bitmap ic_launch=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
        canvas.drawBitmap(ic_launch, new Matrix(), paint);
        
        iv.setImageBitmap(alertBitmap);
        
        
        
            
        }
    
    
    }
  • 相关阅读:
    node 父子进程传递对象
    js 按照字母进行分组
    native react 代码智能提示
    VScode 使用emmet
    c# webapi swagger
    c# 前台和后台线程
    Java——字节和字符的区别
    Java——类的访问修饰符
    Java——面向对象
    Java——内存中的数组
  • 原文地址:https://www.cnblogs.com/hyzhou/p/3448013.html
Copyright © 2011-2022 走看看