/** 构造函数，主要对一些对象初始化 */
public MySurfaceView(Context context) {
super(context);
mHolder = this.getHolder(); // 获得SurfaceHolder对象
mHolder.addCallback(this); // 添加状态监听
mPaint = new Paint(); // 创建一个画笔对象
mPaint.setColor(Color.WHITE); // 设置画笔的颜色为白色
qPaint = new Paint(); // 创建一个画笔对象
qPaint.setAntiAlias(true); // 消除锯齿
qPaint.setStyle(Paint.Style.STROKE); // 设置画笔风格为描边
qPaint.setStrokeWidth(3); // 设置描边的宽度为3
qPaint.setColor(Color.GREEN); // 设置画笔的颜色为绿色
// 创建路径对象
mPath = new Path();
qPath = new Path();
tPath = new Path();
// 设置坐标为50,100
mX = 50;
mY = 100;
// 设置贝塞尔曲线的开始坐标为(10,200)
qStartX = 10;
qStartY = 200;
setFocusable(true); // 设置焦点
}
public void onDraw(Canvas canvas) {
// 검정색 배경으로 지운다. 빈 화면이면 지우기만 하고 리턴
canvas.drawColor(Color.BLACK);
if (status == BLANK) {
return;
}
// 도형 목록을 순회하면서 도형 정보대로 출력한다.
int idx;
for (idx = 0; idx < arShape.size(); idx++) {
Paint Pnt = new Paint();
Pnt.setAntiAlias(true);
Pnt.setColor(arShape.get(idx).color);
Rect rt = arShape.get(idx).rt;
switch (arShape.get(idx).what) {
case Shape.RECT:
canvas.drawRect(rt, Pnt);
break;
case Shape.CIRCLE:
canvas.drawCircle(
rt.left + rt.width() / 2, rt.top + rt.height() / 2, rt.width() / 2, Pnt);
break;
case Shape.TRIANGLE:
Path path = new Path();
path.moveTo(rt.left + rt.width() / 2, rt.top);
path.lineTo(rt.left, rt.bottom);
path.lineTo(rt.right, rt.bottom);
canvas.drawPath(path, Pnt);
break;
}
}
}
public void onDraw(Canvas canvas) {
canvas.drawColor(Color.LTGRAY);
Paint Pnt = new Paint();
String str = "Custom Font Test";
Pnt.setAntiAlias(true);
Pnt.setTypeface(mFont);
Pnt.setTextSize(30);
canvas.drawText(str, 10, 40, Pnt);
}
// 그리기
void Draw(Canvas canvas) {
Paint pnt = new Paint();
pnt.setAntiAlias(true);
int r;
int alpha;
for (r = rad, alpha = 1; r > 4; r--, alpha += 5) {
pnt.setColor(Color.argb(alpha, Color.red(color), Color.green(color), Color.blue(color)));
canvas.drawCircle(x, y, r, pnt);
}
}
public MyView(Context context) {
super(context);
paint = new Paint();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.STROKE); // 设置画笔风格为描边
paint.setStrokeWidth(10);
random = new Random();
setFocusable(true);
holder = getHolder();
holder.addCallback(this);
path = new Path();
}
protected void onDraw(Canvas cs) {
super.onDraw(cs);
// 描画方法の設定
Paint p = new Paint();
p.setColor(Color.BLACK);
p.setStyle(Paint.Style.FILL);
p.setStrokeWidth(8);
// 円の描画
cs.drawCircle(x, y, 50, p);
}
public void onDraw(Canvas canvas) {
canvas.drawColor(Color.LTGRAY);
Paint Pnt = new Paint();
int y = 1;
Pnt.setAntiAlias(true);
Pnt.setTextSize(30);
Pnt.setTypeface(Typeface.create(Typeface.DEFAULT, Typeface.NORMAL));
canvas.drawText("Font:Default", 10, y++ * 40, Pnt);
Pnt.setTypeface(Typeface.create(Typeface.DEFAULT_BOLD, Typeface.NORMAL));
canvas.drawText("Font:Default Bold", 10, y++ * 40, Pnt);
Pnt.setTypeface(Typeface.create(Typeface.MONOSPACE, Typeface.NORMAL));
canvas.drawText("Font:Monospace", 10, y++ * 40, Pnt);
Pnt.setTypeface(Typeface.create(Typeface.SANS_SERIF, Typeface.NORMAL));
canvas.drawText("Font:Sans Serif", 10, y++ * 40, Pnt);
Pnt.setTypeface(Typeface.create(Typeface.SERIF, Typeface.NORMAL));
canvas.drawText("Font:Serif", 10, y++ * 40, Pnt);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
if (paint == null) {
paint = new Paint();
luar =
new LinearGradient(
0.f, 0.f, 0.f, this.getMeasuredHeight(), 0xffffffff, 0xff000000, TileMode.CLAMP);
}
int rgb = Color.HSVToColor(color);
Shader dalam =
new LinearGradient(0.f, 0.f, this.getMeasuredWidth(), 0.f, 0xffffffff, rgb, TileMode.CLAMP);
ComposeShader shader = new ComposeShader(luar, dalam, PorterDuff.Mode.MULTIPLY);
paint.setShader(shader);
canvas.drawRect(0.f, 0.f, this.getMeasuredWidth(), this.getMeasuredHeight(), paint);
}
public void draw() {
Bitmap bitmap = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
RectF rect = new RectF(8, 8, 192, 192);
Paint p = new Paint();
p.setAntiAlias(true);
p.setStyle(Paint.Style.STROKE);
p.setColor(ColS);
p.setStrokeWidth(16);
int S = 162;
int H = 300;
// S
canvas.drawArc(rect, -90, S, false, p);
p.setStyle(Paint.Style.FILL);
p.setColor(ColM);
H -= 90;
canvas.drawCircle(100, 100, 72, p);
p.setColor(ColH);
p.setStrokeWidth(2);
float sx, sy;
sx = (float) (72 * Math.cos(Math.PI * H / 180));
sy = (float) (72 * Math.sin(Math.PI * H / 180));
canvas.drawLine(100, 100, sx + 100, sy + 100, p);
ImageView clokImg;
clokImg = (ImageView) findViewById(R.id.clokImage);
clokImg.setImageBitmap(bitmap);
// Hour picker
Bitmap ColPickBmp = Bitmap.createBitmap(80, 50, Bitmap.Config.ARGB_8888);
Canvas ColPickCanvas = new Canvas(ColPickBmp);
ImageView colPickImg = (ImageView) findViewById(R.id.colorHou);
rect = new RectF(0, 0, 80, 50);
p = new Paint();
p.setAntiAlias(true);
p.setStyle(Paint.Style.FILL);
p.setColor(ColH);
ColPickCanvas.drawRect(rect, p);
colPickImg.setImageBitmap(ColPickBmp);
// Minute picker
ColPickBmp = Bitmap.createBitmap(80, 50, Bitmap.Config.ARGB_8888);
ColPickCanvas = new Canvas(ColPickBmp);
colPickImg = (ImageView) findViewById(R.id.colorMin);
rect = new RectF(0, 0, 80, 50);
p = new Paint();
p.setAntiAlias(true);
p.setStyle(Paint.Style.FILL);
p.setColor(ColM);
ColPickCanvas.drawRect(rect, p);
colPickImg.setImageBitmap(ColPickBmp);
// Second picker
ColPickBmp = Bitmap.createBitmap(80, 50, Bitmap.Config.ARGB_8888);
ColPickCanvas = new Canvas(ColPickBmp);
colPickImg = (ImageView) findViewById(R.id.colorSec);
rect = new RectF(0, 0, 80, 50);
p = new Paint();
p.setAntiAlias(true);
p.setStyle(Paint.Style.FILL);
p.setColor(ColS);
ColPickCanvas.drawRect(rect, p);
colPickImg.setImageBitmap(ColPickBmp);
}
public void onDraw(Canvas canvas) {
Paint p = new Paint();
p.setColor(Color.GREEN);
canvas.drawCircle(x, y, 16, p);
}