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(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {return inflater. inflate (R. layout. frag_list, container, false );}} (4) add Fragment to Activity When Fragment is added to the Activity, it is in the corresponding View Group. Fragment has two loading methods: one is to use the label In addition, Fragment can not be any part of the Activity layout. It can be an invisible part. Loading Method 1: Add Fragment to Activity thr

Android graphics library Skia (4)-generate PDF, androidskia Android graphics library Skia (4)-generate PDF This article mainly records the process of using the skia library to generate PDF files. In fact, skia is not only available in Android systems, but can also be used i

After several days, I finally spent some time writing my blog. I will go on to the previous article to introduce how to compile the JNI method corresponding to the Hal layer (Hardware Abstraction Layer. All mentioned here are compiled in the ICS source code. 1. Define the JNI layer interface Go to the android-4.0.4_r1.2/hardware/libhardware/include/hardware directory and create the TTT. h file with the following content: # Ifndefandroid_ttt_interface_

. indexofkey (ident); // set the device to the default latency level if (info. rates. indexofkey (ident) According to the sensordevice methods, the specific implementation is all implemented by the device operation interface function encapsulated by msensordevice. These device operation interfaces are implemented at the Hal layer, in fact, sensordevice is only the device operation object of sensorservice, which encapsulates the operation of the device. What these operations actually "work" is t

[Android Development] example 4-guess the box in which the gem is stored, android4-A mini game that implements "Guess which box the gem is placed in": There are three boxes in the main interface. clicking any box will open the box and show whether there are any gems in it, in addition, the box that has not been clicked is set to semi-transparent. The box that has been clicked is displayed normally, and the

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

In the previous "Android custom components series [6] -- advanced practice (3)", we added the process knowledge about event distribution in Android, in this article, we will analyze the implementation of the drop-down PinnedHeaderExpandableListView. I. What is the role of the OnGiveUpTouchEventListener interface in StickyLayout? public interface OnGiveUpTouchEventListener { public boolean giveUp

Piglet's Android starter Road Day 7 Part 4--contentprovider (content Provider) for Android data storage and access ---Reprint please specify the Source: Coder-pigIntroduction to this section:In the previous study, we have learned some ways to store data, and these can be shared, such as files, we can put the operationMode is set to Context.mode_world_readable or

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

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

. For example: Also, this activity must be declared using the Android: Configure attribute in the XML file of appwidgetproviderinfo. For example: ...Android: Configure = "com. example. Android. exampleappwidgetconfigure"...> Note that this activity should be declared using a complete namespace because it will be referenced outside the scope of your package. The

1. contentprovider1. What is contentproviderContentprovider is one of the four Android components used Program To other programs.When sharing data Code Encapsulated as a method without directly exposing the data to improve security.You can register a contentobserver for contentprovider to monitor data modification in real time.2. How to create and access contentprovider *****Define the class to inherit contentprovider and register the After the progra