LinearGradient线性渲染
来源:互联网 发布:oracle数据库自动备份 编辑:程序博客网 时间:2024/05/19 23:12
- package shader.yb;
-
- import android.content.Context;
- import android.graphics.Canvas;
- import android.graphics.Color;
- import android.graphics.LinearGradient;
- import android.graphics.Paint;
- import android.graphics.Shader;
- import android.view.View;
-
-
-
-
-
- public class myGameView extends View implements Runnable {
- int bitwidth = 0;
- int bitheight = 0;
- Paint mPaint = null;
-
- Shader mLinearGradient1 = null;
-
- Shader mLinearGradient2 = null;
-
- Shader mLinearGradient3 = null;
-
- public myGameView(Context context) {
- super(context);
-
-
-
-
-
-
-
-
-
-
- mLinearGradient1 = new LinearGradient(0, 0, 0, 100, new int[] {
- Color.RED, Color.GREEN, Color.BLUE, Color.WHITE }, null,
- Shader.TileMode.CLAMP);
- mLinearGradient2 = new LinearGradient(0, 0, 0, 100, new int[] {
- Color.RED, Color.GREEN, Color.BLUE, Color.WHITE }, null,
- Shader.TileMode.MIRROR);
- mLinearGradient3 = new LinearGradient(0, 0, 0, 100, new int[] {
- Color.RED, Color.GREEN, Color.BLUE, Color.WHITE }, null,
- Shader.TileMode.REPEAT);
- mPaint = new Paint();
- new Thread(this).start();
- }
-
- @Override
- protected void onDraw(Canvas canvas) {
-
-
- Paint paint = new Paint();
- paint.setTextSize(20);
- paint.setColor(Color.WHITE);
-
- mPaint.setShader(mLinearGradient1);
- canvas.drawRect(0, 0, 200, 200, mPaint);
- canvas.drawText("CLAMP", 0, 200 + 20, paint);
-
- mPaint.setShader(mLinearGradient2);
- canvas.drawRect(0, 250, 200, 450, mPaint);
- canvas.drawText("MIRROR", 0, 450 + 20, paint);
-
- mPaint.setShader(mLinearGradient3);
- canvas.drawRect(0, 500, 200, 700, mPaint);
- canvas.drawText("REPEAT", 0, 700 + 20, paint);
- }
-
- @Override
- public void run() {
- while(!Thread.currentThread().isInterrupted()) {
- try {
- Thread.sleep(100);
- }
- catch(Exception e) {
- Thread.currentThread().interrupt();
- }
- postInvalidate();
- }
- }
- }
效果图