notes stored on android

"Android.bluetooth.adapter.extra.SCAN_MODE";String Extra_previous_scan_mode: The value is "Android.bluetooth.adapter.extra.PREVIOUS_SCAN_MODE";Switch state Additional domain: The value of these two additional fields is the switch state, can be State_off, state_on, State_turning_off, state_turning_on;String Extra_state: The value is "Android.bluetooth.adapter.extra.STATE";String Extra_previous_state: The value is "Android.bluetooth.adapter.extra.PREVIOUS_STATE";Bluetooth name Additional domain:

[Android Notes] RecyclerView + SwipeRefreshLayout example, swiperefreshlayoutIn this article, you will learn: 1. Basic usage of RecyclerView; 2. Basic usage of SwipeRefreshLayout; 3. Add response events for items in RecyclerView.RecyclerView is used to replace the traditional ListView. RecyclerView is more flexible and can be used with animations. You can easily add various animation effects for each item.

kernel and the network device is completely different from that of the character device and the block device, and the network device is designed for packet reception and transmission. Character devices and block devices can be categorized as a unit that can be read and stored sequentially/randomly, the network device is the driver of the special device, it is responsible for receiving and sending frame data, either physical or IP packets, these featu

permission for Intent uploader, messages sent through sendBroadcast () are ignored. Method 2: declare in the code We can also require the check permission in the code. Note that you still need to declare permissions in manifest. We still use content provider as an example. In manifest, we first declare a new permission: Public cursor query (URI Uri, string [] projection, string selection, string [] selectionargs, string sortorder ){If (getcontext ().CheckCallingPermision("Com. wei.

through the sharing clipboard implementation. Note that the Copy Paste feature works only in the x86 Google API Emulator while API level (Android 4.4-kitkat) and later versions. EffectAndroid Emulator command line toolStarting with the Android SDK tools 25.3, the emulator files in the SDK Tools folder are transferred to a standalone emulator folder, and the commands used in the past

Introduction and basic usage of AsyncTaskFor details about the introduction and basic usage of AsyncTask, refer to the official document and Android Development Notes: multi-threaded AsyncTask. A problem caused by AsyncTaskLast week, I encountered an extremely strange problem. A small function downloads an image from the network and puts it in the ImageView. It is implemented using AsyncTask, and its logic

Statement: ThisProgramIt is not used for commercial purposes and is only used for technical learning. Around the world, Xiaomi notes feature powerful interface appearance, called the android most powerful notes program. With a learning attitude, I tried to write it and try to restore the interface of the original program (using some pictures in the original p

Android Learning notes? From scratch? The third day? ActivityReprint Please specify source : Cleopard Http://blog.csdn.net/cleopardToday is mainly the study of activity.–> Click to enter the Android learning Note Map http://blog.csdn.net/cleopard/article/details/44037813–>19 Android Classic Tutorial + 104 hot item on g

OnClick (View v) { Sharedpreferences sp = getpreferences (mode_private); mapLet's start with a brief introduction to the Sharedpreferences, which is the Android package, dedicated storage preferences, the underlying is an XML file, the directory is stored in: data/data/application package name/shared_prefs/directory, Of course, this file processing do not need you to do, are

Android framework layer learning notes (2), androidframework /Framework/cmds Section This part is mainly the implementation part of the command. Android itself supports some linux commands, and then adds some of its own unique commands Based on android, which are stored in

Android 4.0 icecream was released a few days ago. It was found on the internet yesterday that the begining book had the version of Edition 3. For comparison, there are still some changes, not only the tablet part, there are some revisions and adjustments to the original chapters. Read Edtion 3 in the order of Edtion 2, read Edtion 3 in the same chapter, and then look back at chapter of Edition 3.24, 25 (36 of E2), 26, 27, 28, 29, 44, 45, 46, and 47. A

Download and compile the source code--fourth chapter reading notes and ExperienceRead the book to learn the difference between Android source code and Linux source code, and understand what Android porting is. Knowing that the Android migration is the Linux kernel porting, and the Linux kernel porting is mainly Linux d

Listview is often used because of the cell phone screen size and the touch screen features of fingers. In Android learning notes (11): Activity-listview, each entry in the list has only one data and only one view. In this tutorial, we will learn further changes, to make the list more vivid, you only need to further describe apdater. Example 1: Each element has an icon and an information data 1) set the XML

Android: Daily Learning Notes (9) ——— Explore persistence technology into persistence technology what is persistence technologyPersistence technology means that the instantaneous data in memory is saved to the storage device, so that the data is not lost even when the phone or computer shuts down.Three types of persistence technologies available from the Android

WebView can load and display webpages as a browser. It uses the WebKit rendering engine to load and display webpages. There are two different ways to achieve WebView:Step 1:1. instantiate the WebView component in the Activity: WebView webView = new WebView (this );2. Call the WebView loadUrl () method to set the web page to be displayed in WevView:For Internet: webView. loadUrl ("http://www.google.com ");Local file: webView. loadUrl ("file: // android_asset/XX.html"); local files are

(GO) Android learning notes ② -- basic knowledge of creating HelloWorld, androidhelloworldDevelop the first application Can I develop my own applications? Okay! Let's Start. First click Start a new Android Studio Project to create a Project:Next, enter the application name (the first letter must be in uppercase), the Company domain, and the specified application

Android learning notes: Use of the Andorid network request framework Volley (I) The Volley framework was released at the Google I/O 2013 conference. Volley was born from Google's network communication library on the Android platform. This framework enables faster, simpler, and more robust network communication. Volley has the following features: I: easier and fas

.(2) Install Eclipse, relatively simple, download the decompression installation can(3) Installing ADTOn-line installation, offline installation;(4) Configuring ADT(5) Establishment of AVDCreating an AVD is the creation of an emulator for the specified Android version.3. Install Android NDK Environment(1) Download Android NDKAlso download the latest version of th

phone/simulator. This will remove some of the bad app states that might affect instant execution in your phone.We have fixed a bug in the state of write error. However, you cannot delete the app status that is already installed on your phone.Three. Push program:Assuming everything goes as planned, we want to push this version number to Beta channel within the next few days, but we would also like to thank you for your prompt feedback on the Canary channel, especially with regard to immediate ex

Android: Daily learning notes ——— using Litepal to manipulate databasesintroduction of LitepalWhat is LitepalLitepal is an open-source Android database framework , using the object-relational mapping (ORM) model , the most commonly used in the development of some of the database functions are encapsulated, so that developers do not have to write a line of SQL sta