android 4 2 emoji

Based on Android 4.4 and 4.2, codec used for detection is wm8994. The mic detection in Android and Kernel is based on the headset detection. The specific process is as follows: 1) kernel uses Jack to detect pin interruption and detects that headphones are inserted. 2) read the codec register to determine whether the headset has mic 3) notify the

Android learning route (4) Build a simple UI The Android Application's graphical user interface is constructed usingViewAndViewGroupHierarchical nesting of objects.ViewObjects are usually UI parts, such as buttons or text fields, andViewGroupIt is a container used to define how its sub-layout is arranged. It is usually invisible, such as a grid or a vertical list

.(2), a variety of types of processing: Heavy Getitemtype () and Getviewtypecount (), in the GetView switch switching between different layouts, switching different holder, The content displayed on the UI is set according to different item.type. (3), load time, do not open threads every time, try to use the thread pool instead of opening each thread.(4), ListView scrolling Stop loading Picture:If you use Um

. Fill (DT );// 2. Close the database connectionCN. Close ();Return DT;} 3. Summary1) both Java jdbc and. net ADO. NET implement database access interfaces.2) the corresponding drivers must be used to access other databases. These drivers all implement database access interfaces defined in java or net.3) by defining the interface specifications, different database vendors can provide their own database acce

= "0.0"6 android:duration= " the"7 />8 9 Set>Code under the layout file1.MainActivity Layout File CodeXML code1 LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"2 Xmlns:tools= "Http://schemas.android.com/tools"3 Android:layout_width= "Match_parent"4 Android:layout_height= "Match_parent"5 android:orientation= "vertical"6 Tools:contex

The overall call logic is:1. Compile the FFMPEG Library2. Use JNI to write C code, which must contain the corresponding FFMPEG header file3. Write the corresponding Android. mk file, which specifies the C code to be compiled and the dynamic library to be linked.4. Execute ndk-build to generate the corresponding JNI Library5. Create the andorid Java program. The corresponding FFMPEG library of loadlibrary an

I. Summary By accident, I saw this tutorial on Android Developers and made it step by step. Below is a record. Ii. How to draw OpenGL ES in Android To use OpenGL to draw images in Android applications, we must create a view container. The most direct method is implement.GLSurfaceViewAndGlsurfaceview. Renderer.The former is the container, and the latter controls

the service: Xmlns:android= "Http://schemas.android.com/apk/res/android" android:orientation= "Horizontal" Android:layout_width= "Match_parent" android:layout_height= "Match_parent" > Android:id= "@+id/start_button" Android:layout_width= "Wrap_content" android:layout_height= "Wrap_content" android:text= "Start"/> Android:id= "@+id/stop_button" Android:layout_width= "Wrap_content" android:layout_height= "Wrap_content" android:text=

(meaning please refer to my first article "Android Audio Development (1): basic knowledge")The third part, belongs to "data" information block, the "subchunk2size" this field to record the length of the binary raw audio data stored later.Analysis here, I think we should understand, in fact, do a multimedia format parsing, is not a particularly complex thing, plainly, the format is a specification, tell you, my binary data is how to store, you should

Android learning notes-Menu (2), android learning notes Knowledge point: This time, we will continue the learning of menus not finished in the previous article, Context Menu and pop-up menu ). Context Menu The Context Menu provides operations on specific items or context frameworks on the UI interface, just like the context menu in Windows. In

1. Get contact information from SMSJava code Contactitem getcontactbyaddr (context, final smsitem SMS ){ Uri personuri = URI. withappendedpath ( Contactscontract. phonelookup. content_filter_uri, SMS. maddress ); Cursor cur = context. getcontentresolver (). Query (personuri, New String [] {phonelookup. display_name }, Null, null, null ); If (cur. movetofirst ()){ Int nameidx = cur. getcolumnindex (phonelookup. display_name ); Contactitem item = new contactitem (); Item. mname = cur. g

launched from the command line was different from the version of Android Studio so The following instructions may not apply.1. Launch Android virtual Device Manager:? Inandroid Studio, select Tools>android > AvD Manager, or click the AvD Manager icon on the toolbar.Or, on the command line, change the directory to Note: When you start the command line, the AVD ma

Use of Animations in android Development (2) Use of Animations in android Development (2) This blog post focuses on the use of animation effects in android development. Unlike the previous blog post, the four animation effects are mainly implemented using xml files, this imp

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

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 custom control series 2: Custom switch button (1), android Control This time, we will implement a complete and pure custom control, instead of using the system control like the previous Composite Control. The plan is divided into three parts:Basic Part of the custom control,Processing of touch events of Custom ControlsAndCustom properties of a custom cont

Disclaimer: The book "Secrets of Android Application Development", which records the logs of the book, references the relevant code and summary, and has no commercial use, it is completely a record of self-learning, and many problems will inevitably occur in learning just now. If there are any mistakes, please criticize them a lot. 1. Multiple options (checkbox) Multiple-choice is similar to single-choice. You need to monitor each control. Ii. drop-d

fragment Development Guide. First, your layout must contain a viewgroup object that is used to place option labels associated with each fragment object. Make sure that the viewgroup object has a resource ID so that you can reference it in the switch code of the Option label. In addition, if the content of the Option label is filled in the activity layout (excluding the operation bar), the activity does not need any layout (you do not even need to call the setcontentview () method ). Instead, yo

Register button on the page Btnregister.setonclicklistener (new Onclicklistener ()//BIND register button click event {@Overridepublic void OnClick (View arg0) {//button jump Intent Intent = new Intent (mainactivity.this,register.class); StartActivity (intent);}});} @Overridepublic boolean Oncreateoptionsmenu (Menu menu) {//Inflate the menu; This adds items to the action bar if it is PR Esent.getmenuinflater (). Inflate (R.menu.main, menu); return true;}}Note: Each time you add a

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