Android

Regular expressions commonly used by e-commerce companies, strings, address operations, and regular e-commerce expressions // Judge whether the string is nullPublic static boolean isEmpty (String str ){Return str = null | str. equals ("");}//

Android Network Programming Using PHP to operate MySql to insert data (4), androidmysql Because I recently updated my project, I want to summarize some simple methods of interacting with the network that I used in the project, so there will be more

Android practices: App system signature This has plagued us for a long time.We have always wanted to solve this problem by using non-source code compilation. Follow these steps. The method for obtaining the system signature is as follows:1. The

Add a Parcelable serialization tool to Android Studio (rapidly improving development efficiency)Add a Parcelable serialization tool to Android Studio (rapidly improving development efficiency) Android Studio is a development tool provided by google

In Android, how to modify the compiled resource ID value (the default value is 0x7F... can be changed to 0x02 ~ 0x7E)I. Technical preparation Today, let's take a look at how to modify the value of the resource Id during Android compilation. Before

Underlying principle of adding a View to a Window in Android1. WIndow and windowManagerWindow are abstract classes. The specific implementation is PhoneWindow. It is very easy to create a window. You only need to create a windowManager. The specific

Android client performance optimization (without reservation and dedication from meizu senior engineers) This article is the first original article published by degao in the embedded penguin circle, written by degao, Senior Android Development

Andriod drawing and andriod drawing There are two important components to describe when using view painting:(1) Paint can be understood as a Paint brush or Paint brush. It is mainly used to set the color, fill mode, transparency, font and Font Style

Android-automatically wrap ViewGroup based on the size of child controls, android-viewgroup 1. Custom ViewGroup 1/** 2 * Created by Administrator on 2016/2/26. 3*4 * -------- automatically wrap ViewGroup ----------- 5 */6 public class LineWrapLayout

Android MediaPlayer resume: androidmediaplayer Here are some simple MediaPlayer methods to help you use them in the future!1) how to obtain the MediaPlayer instance: You can use the new method directly: MediaPlayer mp = new MediaPlayer (); you can

Android Network File upload and download tool class Summary 1. Get the last modification time of the file @ SuppressLint ("SimpleDateFormat") public String getFileDataTime (File file) {Date date Date = new Date (file. lastModified ();

Android framework Startup Process As we all know, Android mobile phone system is essentially a Linux-based application, which uses the Linux system As the kernel. Therefore, the system starts two phases: Linux kernel startup and Android framework

Android development environment and genymotion virtual machine combined with HBuilder testing (self-Summary), genymotionhbuilder1. Install android-studio Https://github.com/inferjay/AndroidDevTools Bundle Integration Environment Win7 Jdk (JAVA

Implement slide page nesting in Unity (solving ScrollRect nesting conflicts)Introduction As the project needs to be consulted by more users, a horizontal slide page + a horizontal slide page with a vertical slide page demo is provided to achieve a

Analysis of memory problems in Android Development (I) Tools Memory leakage and memory overflow are common problems in Android development. How to quickly and effectively discover and track the source of Memory leakage or memory overflow is a skill

My android learning experience 12 and android learning experience 12 Automatically match the entered content. (If you have any questions at the end of the article, please answer them. Thank you) The two controls are MultiAutoCompleteTextView and

Android Application SignatureSign Android applications The Android app uses its package name as a unique identifier. If two apps with the same package name are installed on the same mobile phone, the apps installed later will overwrite those

GsonFormat of Android studio plug-in (automatically generate javabean)Overview I believe that you have written a lot of javabean during the development process. In many cases, a list of data is a single javabean. If you think about it yourself, it

BroadcastReceiver-Android broadcast mechanism, broadcastreceiverWhat is broadcast? Television channels, radios, cell phones, and special broadcasts in life all have their own specific broadcasts. No matter whether someone cares or listens, whether

Principles of Style/Theme in Andriod and analysis of Activity interface file selection process By studying the previous blog post , we have mastered the process of creating the layout file of the Activity component and Its top-level control,