Use GDB to debug Android NDK native (c + +) programs-Go

recently written about a cross-platform compatible C + + library, Android is one of the platforms where compatibility is required. Unlike the powerful IDE environment in Windows,mac, the official does not provide much support for the Android NDK. As

(reprint) Android two tab paging way: Tabactivity and Activitygroup and Android project several common application architectures

There are two common methods of tab paging in Android:I. The combination of tabactivity and tabhost1. Main class inheritance Tabactivitypublic class Tagpage extends tabactivity2. Get the current Tabhost objectFinal Tabhost tabhost = Gettabhost ();3.

Android Canvas Paint Paint text

There are three types of fonts: 1, built-in basic font 2, the creation of new typeface 3 through basic fonts and styles, and the introduction of external TTF files.The sample code is as follows:1. Package com.mike.activity;2.3. Import Android. R4.

Learning about JNI in Android (vi) Implementation of the method of registration in JNI

In the previous example, we would find that when a method is defined in a Java class, such as the following:public class Paramtransfertest {public static int testval = 1;public native void Changetestval ();In the corresponding JNI layer, the header

Express Mobile SDK Usage instructions

The Express SDK originates from the Express download kernel, while maintaining ultra-low resource usage at high speed downloads. At the same time provide comprehensive download task management, greatly reduce the download development

An example of scraping music for Android development

Scraping award in life often see, online now also has a variety of sweepstakes, below we are going to achieve a scraping music program, can perfect meet everyone's vanity, haha, the following start, 100% winning!Let's take a look at the

Two ways to make phone calls from IOS

The first wayNSString *phone = @ "88888888"if (phone! = nil) {NSString *telurl = [NSString stringwithformat:@ "telprompt:%@", phone];Nsurl *url = [[Nsurl alloc] initwithstring:telurl];[[UIApplication sharedapplication] openurl:url];}The second

Mu Network-android engineer first form -4-9 Java Loop statement for

Source: http://www.imooc.com/code/1425In the Java loop structure, there is a for loop in addition to the while and Do...while, and three loops can be replaced with each other.Grammar:Execution process:, executes the loop variable initialization

Export a database from an Android program to an SD card

Tag:android    database     private void Copydbtosdcrad () {String database_name = "Database file name"; String OldPath = "data/data/com.packagename/databases/" + database_name; String NewPath = environment.getexternalstoragedirectory () +

[C #] using Application.addmessagefilter as a hotkey for form

Application.addmessagefilter can help you monitor all messages sent to the form by the system.We use it to filter messages.We can make the hotkeys we need.This is Application.addmessagefilter's calling method.A IMessageFilter object must be passed

android--4.2 Vold Mount Management _mountservice (vi)

The whole vold mechanism should be the system layer, and the interaction with the framwork layer is mentioned in android--4.2 Vold Mount Management _commandlistener (ii), which is communicated through a "vold" socket, Here is an analysis of the

Android Development Series (iv): How to unit test an app

In the process of developing an application, it is necessary to carry out the corresponding unit test.Next we write a simple Android application to complete the basic unit testFirst, we need to build an Android project, named JUnit.Then, create a

Android Browser bookmark insertion de-weight algorithm

about the browser Insert bookmark repeat problem has not found a good algorithm, but only temporarily write a stupid way, also please pass by the great God pointing twos, my logic is to insert the bookmark into a collection, before inserting the

iOS development get pictures and videos in the System album (with URL translation)

@ words don't say much, directly on the code#import //must import//photo original path # define Koriginalphotoimagepath [[ Nssearchpathfordirectoriesindomains (Nscachesdirectory, Nsuserdomainmask, YES) objectatindex:0] stringbyappendingpathcomponent:

0 Basics How to learn Android development

What skill bases are needed to develop Android①java Basic Knowledge ②linux basic knowledge ③ Database Fundamentals ④ Network protocol ⑤android Fundamentals ⑥ Server-side development knowledgeA lot of friends start learning Android as soon as they

Android Selector Item Property Daquan (Button press different effect)

          must. Must be a root element. Contains one or more elements.            Attributes:                xmlns:android                     string, must. Defines the namespace of the XML, which must be                       

Install Android Manager under Linux

Android is Google open source software Linux, composed of operating systems, middleware, user interface and application software, claiming to be the first truly open and complete mobile software for mobile devices. Select Linux (i386). Because the

An introduction to the object of Java4android learning

This week begins today, the basic knowledge of Java back to melted down learning again.1, programmers must establish an association between the machine model and the model that is designed to solve the problem . Building this association is

Android Contentobserver Content Viewer basic use

Packagecom.example.observertest;ImportAndroid.content.ContentResolver;ImportAndroid.database.ContentObserver;ImportAndroid.net.Uri;ImportAndroid.os.Bundle;ImportAndroid.os.Handler;Importandroid.support.v7.app.ActionBarActivity;ImportAndroid.view.Menu

Android Monkey self-initiated test

The preface assumes that you do Android development, have not used monkey to test, then see this article today, hoping to solve some of your Android test problems. At least it will save you some time to test and find many other problems.Monkey

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