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Piglet's Android starter Road Day 4-part 3--handler message passing mechanism of Android event processing mechanism------------ Reprint Please specify the source--coder-pigIntroduction to this section:In the previous two sections, we have learned more about two kinds of event handling mechanisms: Listening and callback.Seemingly completed the

Android Data Binding code practice (farewell to findViewById) (4), androiddatabinding Data Binding practice (1)Data Binding Syntax Parsing (2)Advanced Data Binding usage (III)Well, after learning Data Binding in the first three articles, we can find that its power is as follows: 1. Use the MVVM mode to clear the entire project structure2. Connecting views and models through ViewModel decouples views fro

Android (Lollipop/5.0) Material Design (4) defines shadow and cropping View Official Website: https://developer.android.com/intl/zh-tw/training/material/shadows-clipping.html The Material design introduces a depth value to the UI element. depth helps you understand the relative importance of each element and focuses on the task at hand. The elevation value of each View is equivalent to the z attribute, whic

Basic tutorial for Android -- 8.3.7 Paint API -- Xfermode and PorterDuff (4)This section introduces: In the previous section, we wrote the first example about the use of Xfermode and PorterDuff: Implementation of ImageView for rounded corners and circular images,We have realized the benefits brought by PorterDuff. Mode. DST_IN. In this section, we will continue to write examples for practical practitioner

Android video recording tutorials from getting started to getting started (4) ---- Camera Parameter, androidparameter Camera provides a method called setParameters to help developers set Camera parameters. The getParameters method of Camera can be used to obtain the parameters currently set for the Camera. The following describes the usage of several parameters used for video recording. 1. Set the PreviewSi

the whole application talk about already almost, after this article, I will upload source to resources, like can download and learn, today, the alarm clock start setting, set page loadingIn Android, the alarm and wake functions are controlled and managed by the Alarm Manager service. We are familiar with the RTC alarm clock and timer have a great relationship with it. For your convenience, I often call this

1. click the button, specify the action and uri, and set the result code (ResultCode) to reach the Gallery of the default album on the mobile phone. The Code is as follows:1. public void onClick (View v ){2. // TODO Auto-generated method stub3. Intent intent = new Intent (Intent. ACTION_PICK,4. android. provider. MediaStore. Images. Media. EXTERNAL_CONTENT_URI); // start the Photo Gallery5. startActivityFo

status bar drop-down..SetContentText("Notification text" + count) // detailed content displayed in textview.SetContentIntent(I)// Associate pendingintent.SetNumber(Count)// The number displayed on the right of the TextView, which can be enlarged to the right. This number also has a serial number left or right. If multiple notifications are triggered (with the same ID), you can specify which one to display..Build();// Note that build () is added at API level 16 and can be replaced by getNotifica

Android learning notes (4) Intent basic learning, androidintentCorresponding to video tutorial Lesson 7thThis course explains intent, which is an abstract description of the action and indicates the intent. Once an intent is created, an action can be executed for it. inten is the essence of android development.1. click the button to call a specified number. Btn1.

Android development interview: 4. Common basic Java questions, androidjava Follow finddreams blog: http://blog.csdn.net/finddreams/article/details/44403041Because Android is programmed using the Java language, it is necessary for us to fully master the Java foundation for Android development. During the interview, we

to know first is how to deliver, throw, shipping route, and shipping destination.3. Basic Structure of surface flinger Shows the basic composition framework of surface flinger. Surfaceflinger management object: 1) mclientsmap: manages the connection between the client and the server. 2) isurface, isurfacecomposer: aidl call interface instance 3) mlayermap: The management object of the server surface. 4) mcurrentstate. layerssortedbyz: layer array a

Android Rapid Development appbase--(4). Detailed Com.snicesoft.Application and baseactivityIn the appbase--of Android Rapid Development (1). AppBase used Com.snicesoft.Application and baseactivity in the introduction, and this article unlocks their veil.1. Com.snicesoft.Application1) Source Analysis PackageCom.snicesoft;ImportJava.util.ArrayList;ImportJava.util.H

Create an android ORM framework opendroid (4) -- elegantly delete data, ormopendroid In the previous blog "Create an android ORM framework opendroid (iii) -- persistent data", we felt the process of saving data with opendroid. Today's blog shows how opendroid deletes data. I still remember that we introduced the use of opendroid In the first blog "Create an

Previously learned MediaPlayer used to play mobile music, but in the phone a lot of tone is not used MediaPlayer to play such as SMS ringtone, notification ringtone, Android using Soundpool to play small audio files;Learn the use of Soundpool together below"1" Set a button to play the start of the first interface"2" Get SoundpoolLook at the API and learn that there are two ways to get soundpool depending on the versionUsed before version 21Soundpool p

Android multimedia-4-step SoundPool I have learned before that MediaPlayer is used to play mobile phone music, but many of the prompts on mobile phones are not played using MediaPlayer, such as text message ringtones and notification ringtones, use SoundPool in android to play small audio files; The following describes how to use SoundPool.[1] set a button on th

Java 4 Android: all objects (1) We always like to use C ++ and Java for comparison. Although I have used both of them, I forget them. My first job gave me the oldest language (relative to the two) C. Of course, the conversion from the downloaded library to Android forces the user to return to the object-oriented world... 1. Use a reference operation object. In C/

Four states of activity in Android:1)active/runing: After a new Activity is launched into the stack, it is at the top of the screen, at the topmost end of the stack, where it is visible and can interact with the user's activation state.2)Paused: State when activity is overwritten by another transparent or Dialog-style activity. At this point it remains connected to the window manager and the system continues to maintain its internal state, so it is st

Android Practice Notes (4) --- basic concepts of Fragment, Android Practice Notes (4) --- basic concepts of Fragment For more information, see coder-pig. Fragment I believe everyone will be familiar with it, slide side, drawer effect, DialogFragment, etc. Fragment is used. The basic concepts of Fragment have been descr

In the android painting learning Summary (4) -- animation (I), I have introduced in detail the definition and use of tween animation. Due to limited space, many important aspects are not described, this article makes a complete summary on the one hand, and on the other hand, adds the missing questions in the previous article to help you better understand tween animation. Summary of the Nature of tween anima

Hello everyone, today I want to share with you the development of the launcher desktop shortcut icon. We all know that the shortcut icon consists of two parts: the application icon and the Application name. In fact, the shortcut icon in launcher only inherits the textview control and re-draws it to make the background light gray (I don't know what the color is) the elliptical background, the displayed text color is white. Textview has the Android: dra