我试图书写图象一,可以在安伯(Im)使用,但改变我的所有坐标会是一种痛苦。 是否容易使屏幕坐标从底层开始?
无,我不知道将<0>0>0>0>0移至底层,并了解你通常认为“正常”坐标。
但是,将<条码>()和<条码>译文()合并起来,可能会产生同样的效果。
canvas.translate(0,canvas.getHeight()); // reset where 0,0 is located
canvas.scale(1,-1); // invert
您可以向您的Canvas转播如下内容:canvas.pl(1,-1),然后将其翻译成适当的位置。
页: 1 http://developer.android.com/vis/android/graphics/Canvas.html#translate(float,pot),将原产地移至你想要的地方。
甲状腺 can起源于左边。 你们想把这一点转化为最底层的权利。 为了进行这种翻译,从Canvas高处分出。
float X1 = xStart;
float Y1 = canvas.getHeight() - yStart; //canvas is a Canvas object
float X2 = xEnd;
float Y2 = canvas.getHeight() - yEnd;
canvas.drawLine(X1, Y1, X2, Y2, paint ); //paint is a Paint object
这将使你的工作从底部开始。
I m relatively new to Android development. I m developing an app with a ListView. I ve followed the info in #1338475 and have my app recognizing the fling gesture, but after the gesture is complete, ...
I m converting my code from using Handler to AsyncTask. The latter is great at what it does - asynchronous updates and handling of results in the main UI thread. What s unclear to me is how to handle ...
I want to be able to download a file with a particular extension from the net, and have it passed to my application to deal with it, but I haven t been able to figure out the intent filter. The ...
I am quite impressed by the workflow I follow when developing Android applications: Define a layout in an xml file and then write all the code in a code-behind style. Is there an equivalent style for ...
To draw landscapes, backgrounds with patterns etc, we used TiledLayer in J2ME. Is there an android counterpart for that. Does android provide an option to set such tiled patterns in the layout XML?
When following the Android Open Source Project instructions on installing repo for use with Git, after running the repo init command, I run into this error: /c/Users/Andrew Rabon/bin/repo: line ...
I read in the Android documentation that by setting my Activity s launchMode property to singleTop OR by adding the FLAG_ACTIVITY_SINGLE_TOP flag to my Intent, that calling startActivity(intent) would ...
I have pretty good skills in PHP , Mysql and Javascript for a junior developer. If I wanted to try my hand as Android Development do you think I might find it tough ? Also what new languages would I ...