Android Drawing Common Methods Summary _android

What are the common methods of Android drawing, the following one by one for you to enumerate:

1, about the brush (Paint) method

Paint mpaint= new Paint ();
Mpaint.setantialias (TRUE); Anti-aliasing
mpaint.setstrokewidth (mcirclewidth);//Set the width of the ring
Mpaint.setstrokecap (Paint.Cap.ROUND); Defines a segment breakpoint shape as rounded head
Mpaint.setantialias (TRUE);//Anti-aliasing
Mpaint.setstyle (Paint.Style.STROKE);//Set Hollow 

Mpaint.descent ()//is the distance below baseline to the lowest point of the character
mpaint.ascent ()/is the distance above baseline to the top of the character

2, about the canvas (Canvas) method

How to create a new canvas

Create a canvas directly
Canvas Canvas = new Canvas (); 
Create a canvas with the specified Bitmap background
Bitmap Bitmap = Bitmapfactory.decoderesource (Getresources (), r.drawable.ic_launcher);
Canvas canvas2 = new Canvas (bitmap); 

A summary of some common methods of drawing canvas

Used to save the state of canvas. Save, you can call the canvas translation, scaling, rotation, error-cut, cropping and other operations.
Canvas.save ();
The state to save before the canvas is restored. The actions performed against canvas after save have an effect on subsequent rendering.
//save and restore are paired with (restore can be less than save, but not many), and error is raised if the restore call is more than save.
Canvas.restore ();

Move the coordinate origin to the specified position
ccanvas.translate (x,y); 

Summary of common drawing methods

/** Draw arc, fan/
Canvas.drawarc (oval,//arc
    is the rectangle startangle,//the starting angle
    sweepangle,//rotation angle usecenter
    ,/ True to draw the pie, false is curved
    paint);//Brush 
/** Draw Text
/canvas.drawtext (text,//text content
    x, y,///Draw text start coordinates (upper left)
    paint);//Draw The brush of the text 
/** draw Line/
Canvas.drawline (startx, starty,//start xy coordinate
    stopx, stopy,//end XY coordinates 
    paint)//Draw a line with the brush
canvas.drawlines (pts,////the set of end points that draw the line, each line occupies 4 data.
    paint)//The drawing uses the brush
canvas.drawlines (pts,//the set of end points that draw the line, each line occupies 4 data.) The
    number of offset,//skipped data that will not participate in the drawing process.
    count,//The number of data actually involved in drawing.
    paint)//drawing 
/** Drawing Rectangle/
canvas.drawrect (float x1,float y1,//Draw Rectangle Upper-left corner vertex coordinates
    float x2,float y2,/ /Draw Rectangle Right corner vertex coordinate 
    Paint Paint);//Drawing brush

The above is the common method of the Android drawing, hope to be helpful to everybody's study.