Mobile Develop

Contentsize is an area where scrollview can be scrolled, such as frame = (0, 0, +, 480) Contentsize = (320, 960), which means that your scrollview can scroll up and down, The scrolling area is twice times the size of the frame.   Contentoffset is

Android gives me a lot of APIs, so let's just write a little bit about it.1. Get the memory size of the phone and the memory size of the SD card/** * 初始化系统的数据 */ privatevoidinitData() { //获取Rom内存的运行剩余的内存 long rom =

1, explain the Build.gradle file. 1.1 Root directory Android1.1.1Defaultconfig is the root directory of Android, you can configure the package name and other information, if the Androidmainfest.xml is also configured, to Defaultconfig

iOS8 send local notifications, you need to register local notifications first. if ([[uiapplication sharedapplication]currentusernotificationsettings]. Types= =Uiusernotificationtypenone) currently applied local notification type,

Adapter Error in Android:The content of the adapter has changed but the ListView does not receive a notification. Make sure the content of your adapter are not modified from a background thread, but only from the UI thread.Analysis:This error is

First, create a local git repository using Android Studio:1, check the local git environment: setting-->version Control Click on the Test button in Android studio, prompting success to prove that the local git environment has been built;2, the new

Q1: Why do I have to customize view? A: Since many systems bring their own view to meet the current design needs or in order to achieve a better user experience, add UI beautification effect, you need to customize the viewQ2: How many steps to

Screen Size:屏幕对角线的长度单位英寸，1英寸=2.54厘米Resolution在横纵线上的像素点数单位是px，1px=1个像素点一般以纵向像素*横向像素，如1920*1080Screen pixel density指每英寸上的像素点数(屏幕对角线上)单位dpi，与屏幕尺寸和屏幕像素有关1920*1080 dpi=445计算方式：sqrt{1920^2+1080^2}/尺寸(4.95对角线)Px,dp,dip,spdp dip是密度无关像素以160dpi为基准，1dip=1px在320

The previous period of time to learn Recyclerview, found that the ListView has a more obvious feeling, so decided to take the inventory of the idea of the ListView, finishing after all after 5.0 popularity, the ListView still has its place. As

Read a lot of articles on the Internet, some too old, some do not say is not very clear, this step by step start using the Android JNI methodReference: http://bbs.51cto.com/thread-948244-1.html###Http://www.cnblogs.com/kissazi2/p/3298884.htmlUsing

You follow the following steps to write, no errors, in the middle because there is no Cordova-2.9.1.jar file, resulting in the construction of the project error, so step 2 is very important.1, in the PHONEGAP official website (phonegap.com/install)

Android SDK+ECLIPSE+ADT+CDT+NDK development environment built under windows 7These days have been working on the Android SDK C + + platform build, despite previous successes in Windows XP, because there was no useful record, spent a lot of wronged

#define MJCOLOR (r,g,b) [Uicolor colorwithred: (r)/255.0 Green: (g)/255.0 Blue: (b)/255.0 alpha:1.0]1. Customize a Mjhumanview, inherit from UIView2. The default view (whole view) class is set to Mjhumanview3. Implementing DrawRect: Methods-(void)

One, I am a strong supporter of early and often compiled. In general, after you have written each method or a bit of difficulty, try to build the code. This is a good habit, because if the amount of code added since the last successful compilation

What does Android pdk,ndk,sdk do?Three words should be common in the field of software development, and their full names are:SDK (software development Kit)PDK (PlatformDevelopment Kit)NDK (Native development Kit)1.SDK Software Development KitThe

Original: [Android] The difference between main and launcher in the manifest fileMAIN and LAUNCHER, have been not aware of these two differences, write the program when all put into a filter, two days before the interview asked, summed up: Main

Shader is an important part of OpenGL ES.Brief introductionThe shader program is a program that runs on the GPU and is a program written in GLSL language.FunctionWith OpenGL shaders, you can enrich rendering, and the features you can implement

The following three controls in iOS have copy-and-paste functionality on their own1, Uitextview2, Uitextfield3, UIWebViewUIKit Framework Several classes and protocols are provided to facilitate our ability to implement the Clipboard in our own

One, the iOS application common data storage way1.plist (XML attribute list archive) 2. Preferences 3.NSKeydeArchiver Archive (store custom objects) 4.sqlite3 (database, relational database, cannot directly store objects, to write some database

When we are using the LISTVIEW. Sometimes when customizing the adapter, will it be found in the GetView to print the log, repeated calls many times? Sometimes 4 times. Some are serious even to 10 times when we move in the LISTVIEW. Each column will