void myDraw() {
float width, height;
width = getMeasuredWidth();
height = getMeasuredHeight();
canvas = holder.lockCanvas();
canvas.drawColor(Color.GREEN);
canvas.drawPath(path, paint);
holder.unlockCanvasAndPost(canvas);
}
public void mDraw() {
mCanvas = mHolder.lockCanvas(); // 获得画布对象,开始对画布画画
mCanvas.drawColor(++i); // 设置画布颜色为黑色
canvasMethod(mCanvas); // 调用自定义的方法,主要是在传进去的画布对象上画画
mHolder.unlockCanvasAndPost(mCanvas); // 把画布显示在屏幕上
}
/**
* 画整体chart图
*
* @param translatX chart图偏移量
*/
public void refreshChart(int translatX) {
synchronized (holder) {
translationChart(translatX);
if (holder != null) {
Canvas canvas = holder.lockCanvas();
if (canvas != null) {
canvas.drawColor(backColor);
drawGridLine(canvas);
drawChartLine(canvas);
drawLimitRect(canvas);
drawAxesLine(canvas);
drawYValueText(canvas);
holder.unlockCanvasAndPost(canvas);
}
}
}
}
@Override
public void run() {
while (running) {
Canvas c = null;
try {
c = surfaceHolder.lockCanvas(null);
synchronized (surfaceHolder) {
if (!game.onEnterFrame(c)) {
running = false;
game.shutdown(true);
view.shutdown();
}
}
} finally {
// do this in a finally so that if an exception is thrown
// during the above, we don't leave the Surface in an
// inconsistent state
if (c != null) {
surfaceHolder.unlockCanvasAndPost(c);
}
}
}
}
