Android

Suspend and resume activity (pausing and resuming) An activity is an application component that provides a screen that users can use to interact in order to accomplish a task, such as dialing, taking photos, sending emails, and looking at a map.

The Gets the phonetic first letter of a Chinese character. GB code two bytes respectively minus 160, converted into 10 code combination can get location code such as Chinese characters "You" GB code is 0XC4/0XE3, respectively minus 0xa0 (160) is 0x2

The project needs to add a grid line to the GridView, and the background of the GridView is a complete picture, as shown in the figure: The common methods are: 1, change the background color of the GridView2. Set the interval of the GridView

First of all, let's assume that a scene where a viewpager is nested inside a viewpager, and the internal sliding direction is the same as the external sliding direction, how do we solve this conflict?For sliding conflicts Here are two solutions: the

1. Written in front Most andriod applications require data interaction with the server, HTTP, FTP, SMTP or directly based on socket programming can be data interaction, but HTTP is necessarily the most widely used protocol.This article does not

This article summarizes the Android 8 kinds of dialog box (Dialog) Use method, share for everyone to reference, specific content as follows 1. Written in front Android provides a rich dialog function, this article describes the use of the 8 most

Briefly introduce the reason for this demand, this time due to the company's business needs, which has a "Set system language" function, is in the process of using the app, dynamic to switch the entire Android machine language, specific reference to

A lot of Android Getting Started program apes may be more fearful about Android custom view, but this is the only way to get to the master's level, all ready to spend some time on custom view and write more articles. I. Description of the problem

Nonsense not to say more, directly to everyone to paste the code, the specific code as follows: public class Roundimageview extends ImageView {private Paint Paint; private int roundwidth =; private int roundheight = 50; Private Paint Paint2;

The use of Jsonobject Use of JSON objects: String content = "{' username ': ' linux ', ' Password ': ' 123456 '}"; Jsonobject jsonobject = new Jsonobject (content); String username = jsonobject.getstring ("username"); String Password =

This article for you to share the Android Operation Bluetooth 2.0 use method, for everyone's reference, the specific content as follows 1.Android Operation Bluetooth 2.0 usage process(1) Find device UUID(2) Obtain the Bluetooth adapter, makes the

The function of Splash interfacelogo used to show the productApplication initialization actionsCheck the version of the applicationCheck if the current application is legally registered Second, the interface of the XML definitionwrite a layout

Managing fragment life cycles is somewhat like managing the lifecycle of an activity. Fragment can survive in three different states: Resumed: The fragment is in a running activity and is visible. Paused: Another activity is at the top, but the

This example analyzes the use of Popupwindow in Android development. Share to everyone for your reference, specific as follows: Private TextView Tv_appmanager_title; Private ListView Lv_app_manager; Private LinearLayout

This article analyzes the life cycle of widgets in Android development. Share to everyone for your reference, specific as follows: Widgets are Android desktop widgets that must be inherited when created Appwidgetprovider,appwidgetprovider is

Fragment is the new concept of Android Honeycomb 3.0, fragment is known as fragmentation but is very similar to activity, below describes the role and usage of the Android fragment. Fragment used to describe some behavior or part of the user

This article describes the Android rewrite TextView to achieve a neat text typesetting method. Share to everyone for your reference, specific as follows: Xrtextview class Package rong.android.test; Import Org.json.JSONArray; Import

Build Android System apk1, set up the environment Export android_home=/home/administrator/soft/android export path= $PATH: $ANDROID _home/out/host/linux-x86/bin Export android_product_out= $ANDROID _home/out/target/product/generic 2,

Because of the need to always get the network problem, today looked at WiFi operation, after finishing, made a class, may be incomplete, but the personal feeling has been fully able to meet the needs, of course, the method inside may be wrong or

This article introduces the Android mobile phone vibration, jitter effect, share for everyone's reference, the specific contents are as follows (1) The layout file is as follows (2) Mainactivity.java Package com.example.test1