Android

This example describes how Android gets the avatar of a contact. Share to everyone for your reference, specific as follows: Public byte[] Getphoto (string people_id) { string photo_id = null; String Selection1 = contactscontract.contacts._id

First, download the jar package Https://github.com/square/okhttp If you use Android Studio you just need to join the dependency compile ' com.squareup.okhttp3:okhttp:3.2.0 ' Second, download a picture and showIt's a hanlder way to use.

If you use the following code to get the defined color value Context.getresources (). GetColor (r.color.some_color_resource_id); There is a lint warning in Android Studio that prompts you to Resources#getColor(int) Marshmallow be

This article is mainly for you to explain the use of a variety of Android debugging tools. 1. View the current stack 1 function: Add code in the program so that you can see the current function call relationship printed out in Logcat. 2) Method:

Android ADB Usage The ADB full name is the Android Debug Bridge, which plays the role of debugging bridges. Used to manipulate Android devices. Reading Table of Contents What's the use of ADB? ADB downloads ADB devices ADB install (

The Android system provides interfaces such as Mediascanner,mediaprovider,mediastore, and provides a set of database tables that are available to users through content provider. When the cell phone boot or SD card Plug and other events occur, the

When using the mobile phone, Bluetooth communication brings us a lot of convenience. So how does Bluetooth develop on Android phones? This article illustrates the knowledge of Android Bluetooth development in a practical way. 1, the use of

Some mobile phones will have vibration prompts after the phone is connected, which has the advantage of waiting to be connected to the ear to listen to, reduce radiation. This article will talk about how to implement the phone's vibrating cue

Overview There is a picture of the truth, so first figure: Pictured above is the lifecycle flowchart of the activity from the Android website, which describes all the possible occurrences of the activity during its lifecycle and the sequence in

This article summarizes the meaning and usage of the layout attribute in Android. Share to everyone for your reference. Specifically as follows: Layout: Absolutelayout (Absolute layout):Xmlns:android=

In Android, in addition to starting a program from the interface, you can start the program from the command line, using the command-line tool AM. Copy Code code as follows: usage:am [subcommand] [options] Start an activity:am start [

To know the difference between Dalvik and art, first of all, we have to know what the two are? What is Dalvik?Dalvik is Google's own virtual machine designed for the Android platform.Dalvik virtual Machine is one of the core components of Android

The purpose of this class is to provide an interface for the actions that need to be made when reading a book, and to create a paging interface using the Android custom control, as follows Bookpage.java Package com.horse.util; Import Java.text.

The example in this article describes the way Android implements a roadmap on a map. Share to everyone for your reference. Specifically as follows: Recently in the map to draw a road map, after a period of exploration, finally understand, in fact,

To create a alertdialog: 1. Create Alertdialog.builder objects 2, call the Builder object Settitle method set the caption, SetIcon method set icon 3, call Builder related methods such as Setmessage method, Setitems method, Setsinglechoiceitems

First, what is the activity Activity is a user interface program, which in principle provides a user with an interactive interface. It is the basic functional unit of an Android application. The activity itself has no interface. So the activity

This article describes the Android implementation approach to acquiring wired and wireless IP addresses. Share to everyone for your reference. Specifically as follows: To do the development of Android, encountered the problem of getting a wired IP

The examples in this article describe how to use post requests in Android. Share to everyone for your reference. Specifically as follows: One, need to use the scene Using $.post () in jquery makes it easy to initiate a POST request, and sometimes

First, we give the effect chart of the Happy Lantern The color block in the middle is due to the distortion caused by the video turned into GIF, which automatically ignores ha.As you all know, the horizontal horse light Android with the TextView

This example shares the Android access to the mobile phone system version of information such as the method, for your reference, the specific contents are as follows: The first type of code: String Phoneinfo = "Product:" +