drawing programs for android

The following content is reproduced from: http://shazhuzhu1.iteye.com/blog/1095694 Android calls system programs 1. Search for content from Google Intent intent = new intent (); Intent. setaction (intent. action_web_search ); Intent. putextra (searchmanager. query, "searchstring ") Startactivity (intent ); 2. Browse the webpage Uri uri = URI. parse ("http://www.google.com "); Intent it = new intent (inten

Understanding of the Android mapping mechanism is critical in Android learning, including custom controls and very frequent use of content. Recently encountered a difficult problem in the project, several modules of the project are used in the ListView or the GridView "drop-down refresh, pull load more" function. At the beginning of the Internet to find the works of Daniel, used in the project later found t

This article illustrates the OpenGL graphics techniques of Android programming. Share to everyone for your reference, specific as follows: For a long time without OpenGL ES drawing, afraid of their own forgotten, so to review again, by the way the original rational things summed up as follows: 1. Android 3D coordinate system As shown in figure: Android's th

one tube, background text messages can be, don't say access to the root directory. iOS does not allow you to create subdirectories in the root directory, the app is isolated, a little bit more than the App Store audit.posted on 2015-04-15 add Comment thanksShareCollection • No help · Report • Author retention rights 0 Approval objection, will not show your nameFlynaj Most android/data space is very small. The memory card is big.and restore the facto

First, the Android side of the lagThe Android app is prone to lag during specific use, such as having a meal when viewing a page, a slow response after switching tabs, or a slow operation when it comes to sliding.Second, the reasons for the lagThere may be many reasons for the lag, such as:1. High CPU2. Memory Overflow3. Main thread processing IO operation, etc....Where over-drawn, is an easy to ignore but

, CubictocubicToThe same is used to achieve Bezier curves.mPath.cubicTo(x1, y1, x2, y2, x3, y3)(X1,Y1) is the control point, (X2,y2) is the control point, (X3,Y3) is the end point.So, cubicTo quadTo What's the difference?This is what the authorities say: Same as Cubicto, but the coordinates is considered relative to the current point in this contour. To be blunt, it is a control point.Then we want to draw the same curve as the previous one, how should we write it?mPath.moveTo(100,

// Super.dispatchdraw (canvas);//This will call Drawchild to draw the child view////all the child views are drawn and there are some things you can do here, like drawing a shadow or something.otherfrom the above analysis, it can be seen that the drawing of view tree is a recursive process, from ViewGroup until all sub-view is finished drawing, then where is the s

processing here first, including the incoming canvas // Super.dispatchdraw (canvas); //This will call Drawchild to draw the child view // //After all the child views are drawn, there are some things you can do here, like drawing shadows. // } OtherFrom the above analysis, it can be seen that the drawing of view tree is a recursive process, from ViewGroup until all sub-view is finished

draw, the method that starts with draw is easy to understand, that is, drawing a graph into the canvas, for example, drawing a bitmap into the canvas and filling the color of the graph. Example method: drawarc (rectf oval, float startangle, float sweepangle, Boolean usecenter, paint) draw an arc drawcircle (float CX, float cy, float radius, paint) the circular canvas class provides many methods. We will no

In the previous articles we analyzed the activity and dialog loading drawing process, cancel the drawing process, I believe you have a perceptual understanding of the Windows drawing mechanism of the Android system, this article we will continue to analyze the Popupwindow loading d