View控件之画图

package chenchneg20170821.bwie.com.lianxi09day27_1.weigh;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapShader;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Path;import android.graphics.RectF;import android.graphics.Shader;import android.graphics.drawable.BitmapDrawable;import android.graphics.drawable.Drawable;import android.util.AttributeSet;import android.view.View;import chenchneg20170821.bwie.com.lianxi09day27_1.R;/** * Created by dell on 2017/9/27. */public class Viewone extends View {    private static final String ATG="Viewone";    public Viewone(Context context){        super(context);    }    public Viewone(Context context, AttributeSet attrs) {        super(context, attrs);    }    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        //创建笔画        Paint paint=new Paint();        //抗锯齿        paint.setAntiAlias(true);        //设置颜色        paint.setColor(Color.RED);        //设置笔画粗细        paint.setStrokeWidth(4);        //设置样式        paint.setStyle(Paint.Style.FILL_AND_STROKE);       //画圆       Drawable drawable = getResources().getDrawable(R.mipmap.ic_launcher);        Bitmap bitmap;        bitmap = ((BitmapDrawable)drawable).getBitmap();       BitmapShader shader= new  BitmapShader(bitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);        paint.setShader(shader);        canvas.drawCircle(100,100,100,paint);        //绘制矩形        canvas.drawRect(1010,150,600,654,paint);        //绘制圆角矩形        RectF rectF=new RectF(100,350,220,260);        canvas.drawRoundRect(rectF,40,40,paint);        //绘制扇形        RectF rectF2=new RectF(100,370,210,570);        canvas.drawArc(rectF2,0,150,true,paint);        //绘制点        canvas.drawPoint(20,320,paint);        //绘制路径        Path path = new Path();        //起始位置        path.moveTo(100,320);        path.lineTo(10,450);        path.lineTo(110,450);        path.close();        canvas.drawPath(path,paint);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);    }    @Override    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {        super.onLayout(changed, left, top, right, bottom);    }    @Override    protected void onAttachedToWindow() {        super.onAttachedToWindow();    }    @Override    protected void onDetachedFromWindow() {        super.onDetachedFromWindow();    }}