The method is to use the URL: http://pv.sohu.com/cityjson?ie=utf-8, return String Type of ip address:
public static String getNetIp() {
String ip = “”;
InputStream inputStream = null;
try
Category: Android
Android (Android) is an open source mobile device operating system based on Linux, mainly used in smartphones and tablets. The Android system was originally developed and produced by Andy Rubin and others. The initial purpose of developing this system was to create an advanced operating system for digital cameras; but later it was found that the market demand was not large enough, and the smartphone market grew rapidly. So Android was transformed into an operating system for smartphones. It was acquired by American technology company Google in August 2005. In November 2007, Google established the Open Handheld Device Alliance with 84 manufacturers, developers, and telecom operators to jointly develop and improve the Android system. Subsequently, Google released the Android version with the Apache free open source license. The original code allowed manufacturers to launch smartphones equipped with Android, and Android gradually expanded to tablet computers and other fields.
Android APP automatic upgrade
procedure _InstallApk(Apk: string span>);
var
LFile: JFile;
LIntent: JIntent;
begin
LFile := TJFile.JavaClass.init(StringToJString(ExtractFilePath(Apk)), StringToJstring(ExtractFileName(Apk
The most common Android memory optimization method and prevent leakage caused OOM summary articles
The purpose of memory optimization is to allow us to effectively avoid memory leaks in our applications during development. Memory leaks are no stranger to everyone. To put it simply and vulgarly,
NDK-Build instructions
ndk-build The script can be used to compile projects using NDK’s Make-based build system. In addition, we also provide more specific documents for the configuration of Android.mk and Application.mk
Android log plan research
The principle of android Log For android engineers, you may not need to know the details of the bottom jni part of Log. Use a picture to understand the implementation process:
There are three
Android Studio installation and the configuration of the first startup
Installation of Android Studio and configuration at first startup
1. Download Android Studio
Baidu search “Android Studio”
Click on the Chinese community to enter and select the latest version to download.
After downloading, double-click the installation package to start the installation.
Android App Development Content Image Not Display
I/Glide: Root cause (1 of 1)
Solution:
1. Create a new network_config.xml file in the xml folder under res
2. Then refer to the app
Reflect native modality, avoid adjusting view size when opening the keyboard (Android)
I am using a react-native modal that contains a View.
View has some TextInput elements. When the keyboard pops up, the View elements are all collapsed to fit the remaining space, but I don’t want
Android – When we start new activities to kotlin why we put .java in intent instead of .kt
According to kotlin doc, we use the following syntax to start a new activity
startActivity(Intent(this @ MainActivity,NextActivity :: class.java)) It’s kotlin, why do we add .java after
Face real-time comparison with ID card comparison judgment is a person’s Android Demo
Needs about this project There are often such needs, such as staying in hotels, issuing certificates, bank card withdrawals, etc., to verify that the person and The ID card is the requirement of th