我试图让使用帆布和surfaceview的应用程序，我担心将来我会有很多问题，因为我不知道，如果在画布成正比，而与每一个设备。目前我只能用我的模拟器，因为我的手机的USB连接线无法正常工作（我知道..我必须得到一个新的..）。

反正，我想知道，如果在画布会转移我的坐标，使一切的比例，我的意思是，如果我有东西在点，可以说，（10，10）的设备屏幕上它是100×100（这只是为了便于计算的例子），那将是点（1,1）一个10×10的设备上。

这是真正困扰我...

谢谢！

没有，这不会是这样的。如果有一个坐标（10,10），这将是在所有设备是相同的。我建议你​​比例您的图纸。

要扩展您的图纸，你只需定义一个位图（将保持不变），你想提请（当屏幕尺寸发生变化，这将拉伸位图）。

定义一个恒定的位图：

位图gameScreen = Bitmap.createBitmap（getGameScreenWidth（）   getGameScreenHeight（），Config.RGB_565）;

获取规模为x和y

宽度= game.getWindowManager（）getDefaultDisplay（）的getWidth（）。             身高= game.getWindowManager（）getDefaultDisplay（）的getHeight（）。       scaleXFromVirtualToReal =（浮点）宽/ this.gameScreenWidth;               scaleYFromVirtualToreal =（浮点）高度/ this.gameScreenHeight;

定义基于前面的定义位图中画布对象（允许你画它，例如canvas.drawRect（）[...]。）：

画布canvasGameScreen =新的Canvas（gameScreen）;

在你的渲染线程，你必须有一个叫做帧缓冲画布，这将使得虚拟帧缓存的：

frameBuffer.drawBitmap（this.gameScreen，空，新的Rect（0，0，宽度，   高），空）;

I am trying to make an app using canvas and a surfaceview, and I am worrying that in the future I would have many problems with it because I am not sure if the canvas is proportional with every device. currently I can only use my emulator since my phone's usb cable doesn't work(I know.. I have to get a new one..).

anyways, i would like to know if the canvas would transfer my coordinates and make everything proportional, what I mean by that is that if i have something in point a, lets say (10, 10) on a device that the screen of it is 100 X 100 (this is just an example for easy calculation) it would be on point (1, 1) on a 10 X 10 device.

This is really bothering me...

Thanks!

No, this wouldn't be the case. If you have a coordinate (10,10), it would be the same on all devices. I'd suggest you scale your drawings.

To scale your drawings you simply define a bitmap (that will stay the same) you'd like to draw to (when screen sizes change, that bitmap will be stretched).

Define a constant bitmap:

Bitmap gameScreen = Bitmap.createBitmap(getGameScreenWidth(), getGameScreenHeight(), Config.RGB_565);

Get the scale for both x and y

width = game.getWindowManager().getDefaultDisplay().getWidth(); height = game.getWindowManager().getDefaultDisplay().getHeight(); scaleXFromVirtualToReal = (float) width/this.gameScreenWidth; scaleYFromVirtualToreal = (float) height/this.gameScreenHeight;

Define a canvas object based on the bitmap you defined earlier on (allowing you to draw to it eg. canvas.drawRect() [...]):

Canvas canvasGameScreen = new Canvas(gameScreen);

In your rendering Thread you'll have to have a Canvas called frameBuffer, which will render the virtual framebuffer:

frameBuffer.drawBitmap(this.gameScreen, null, new Rect(0, 0, width, height), null);