标签:public tco str javase mod 构造 get ace err
<1>简介
具体的看一下博文:Android学习笔记进阶15之Shader渲染
public BitmapShader(Bitmap bitmap,Shader.TileMode tileX,Shader.TileMode tileY)
调用这个方法来产生一个画有一个位图的渲染器(Shader)。
bitmap 在渲染器内使用的位图
tileX The tiling mode for x to draw the bitmap in. 在位图上X方向花砖模式
tileY The tiling mode for y to draw the bitmap in. 在位图上Y方向花砖模式
TileMode:(一共有三种)
CLAMP :如果渲染器超出原始边界范围,会复制范围内边缘染色。
REPEAT :横向和纵向的重复渲染器图片,平铺。
MIRROR :横向和纵向的重复渲染器图片,这个和REPEAT 重复方式不一样,他是以镜像方式平铺。
还是不太明白?那看一下效果图吧!
REPEAT MIRROR
<2>具体实现
- package xiaosi.BitmapShader;
-
- import android.app.Activity;
- import android.os.Bundle;
-
- public class BitmapShaderActivity extends Activity {
-
- private BitmapShaders bitmapShaders = null;
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
-
- bitmapShaders = new BitmapShaders(this);
- setContentView(bitmapShaders);
- }
- }
BitmapShaders.Java
- package xiaosi.BitmapShader;
-
- import android.content.Context;
- import android.graphics.Bitmap;
- import android.graphics.BitmapShader;
- import android.graphics.Canvas;
- import android.graphics.Paint;
- import android.graphics.Shader;
- import android.graphics.drawable.BitmapDrawable;
- import android.graphics.drawable.ShapeDrawable;
- import android.graphics.drawable.shapes.OvalShape;
- import android.view.View;
-
- public class BitmapShaders extends View
- {
- private BitmapShader bitmapShader = null;
- private Bitmap bitmap = null;
- private Paint paint = null;
- private ShapeDrawable shapeDrawable = null;
- private int BitmapWidth = 0;
- private int BitmapHeight = 0;
- public BitmapShaders(Context context)
- {
- super(context);
-
- bitmap = ((BitmapDrawable) getResources().getDrawable(R.drawable.h)).getBitmap();
- BitmapWidth = bitmap.getWidth();
- BitmapHeight = bitmap.getHeight();
-
- bitmapShader = new BitmapShader(bitmap,Shader.TileMode.MIRROR,Shader.TileMode.REPEAT);
- }
- @Override
- protected void onDraw(Canvas canvas)
- {
- super.onDraw(canvas);
-
-
- shapeDrawable = new ShapeDrawable(new OvalShape());
-
- shapeDrawable.getPaint().setShader(bitmapShader);
-
- shapeDrawable.setBounds(20, 20,BitmapWidth-60,BitmapHeight-60);
-
- shapeDrawable.draw(canvas);
- }
- }
Android学习笔记进阶16之BitmapShader
标签:public tco str javase mod 构造 get ace err
原文地址:http://www.cnblogs.com/Free-Thinker/p/6722136.html