android touch screen tablet

the standard Android phone screen, the so-called standard is the density of 160dpi, resolution of 320x480, density of 240dpi, The screen resolution is 480x800, of course, not including the tablet, this kind of tablet usually refers to the domestic

of the size of the chalk and the corresponding relationship, for the development of Android games can take into account the future of 3.0 and a lot of tablet needs.Conventional we may only consider QVGA,HVGA,WVGA,FWVGA and DVGA, but left the phone to talk about, may use the tablet like WSVGA 1024x576 and WXGA 1280x768 and so on.QVGA = 320 * 240;WQVGA = 320 * 480

1. Overview The Android fragmentation problem is a nightmare for every developer, and this article summarizes the Android adaptation issue in a comprehensive way. First of all, look at the official report released by Google August 1, 2016:Relative numbers of devices related to the Android platform version:You can see that the 4.1 version and above a

Widgets and Qt Quick apps How does the android layout adapt to different screen sizes? You can calculate the space occupied by your popupwindow in real time. For example, if your initial parameter is 300pxX250px, you 'd better instantly convert dp to px./*** Convert the dip or dp value to the px value to ensure that the size remains the same** @ Param dipValue* @ Param scale* (Density in DisplayMetric

This article describes a fun appImplementation ideas: Use a custom view on a transparent activity and then draw on the view. 9 of broken glass pictures, plus sound effects. And then disappear for a while.The main use of a postinvalidate () method, with a set to put the finger touched place, call Postinvalidate () in the Touch event, method to redraw the view.It is important to note that the playback sound is the same as the play sound in the previous

the split-line footage in the drawable-nodpi, and the picture in the resource folder will be displayed in the actual pixel size, rather than being scaled by Android based on density. That is, the thin line in the MDPI is 2px (2DP), and the thin line in the xhdpi is 2px (1DP).The above is a preliminary summary of the Android screen, I do not know if you read afte

Android screen adaptationOfficial address: http://developer.android.com/guide/practices/screens_support.htmlI. Recommendations on layout adaptation1, do not use absolute Layout 2, try to use match_parent instead of fill_parent. 3, can use the weight of the place as far as possible the use of weight (android:layout_weight) 4, if it is a solid color background, as far as possible using the shape of

Today to introduce the Android in the slide screen function of a basic implementation process and principle, and finally give you the key to explain the view of the Scrollto and Scrollby the difference between the two functions. First, we have to understand that there is no boundary to the Android view, canvas, except that we do something about the canvas object

).The above is a preliminary summary of the Android screen, I do not know if you read after the enlightened, or confused? This article is mainly for practical purposes, avoid too much in-depth analysis, if you have any questions, you can leave a message.----------------------------------------------------------Finally, many friends asked me the design of the Android