Data sharing of the ContentProvider component in Android
Functions and meanings of ContentProvider:
It is mainly used for external data sharing, that is, using ContentProvider to share the data in the application to other applications for access.
Activity --- data exchange between activities, data transmission between activities
Main functions:
A main interface (main Activity) can be connected to many different sub-function modules (Child Activity). After the sub-module completes the tasks,
Activity start mode and activity start ModeActivity can be started in four modes: standard, singleTop, singleTask, and singleInstance. Android manages Activity instances in the stack rollback mode. Stack is a collection of advanced and backward
Android Security Special-AndBug dynamic debugging tool environment setup
Environment Construction
Git clone cd to the AndBug directory and execute make
58deMacBook-Pro-7:AndBug wuxian$ makePYTHONPATH=lib python setup.py testrunning test.:: '' of (
MSM8909 + Android5.1.1 keyboard driver --- sn7326 Introduction
1. Sn7326 Overview
SN7326 is a keyboard extension chip with intelligent self-scanning, supporting up to 8x8 buttons. The press/release button action is encoded into a byte of data and
Android learning Activity (1) activity and intent, androidintent
Tool: JDK environment configuration + SDK + ADT Tool
I. Main Functions of Activity:
1. interfaces between users and Applications
2. Control container
II. Key points for creating an
Analysis of MSM8909 + Android5.1.1 keyboard driver
MSM8909 + Android5.1.1 keyboard driver ------ Overview
The SN7326 keyboard extension chip with smart finger scanning can read the value of its status register through the I2C interface to know
【Ad】adb.exe, start-server 'failed', adbserverfailed
[Switch] how to deal with the problem that the Android adb.exe program cannot be started
Solution:
Baidu and google all say that the task manager kill adb or restart adb server, but my task
Common permissions of the Android system and android Permissions
Permission
Description
ACCESS_NETWORK_STATE
Allow applications to obtain network status information
ACCESS_WIFI_STATE
Allow applications to obtain
Sliding conflict of views in Android-Android development art exploration notesIntroduction
I believe that Android Developers will have this experience: the demo downloaded from the Internet runs well, but as long as there is a sliding conflict, the
Read the source code of the application project with exquisite design, and design the exquisite source code.
This refers to the simple design of the finger-reading App. It adopts the MD style and the UI design is fresh. I personally
Android achieves unlimited carousel and android achieves carousel
1. Set the length of getCount () in the ViewPager adapter to an infinitely large Integer. MAX_VALUE
2 understand that the current currentIten is position % images. length;
3. Set the
MultiTouch ---- multi-touch, scaling images, changing image positions,
Today's mobile phones support multi-touch functions (images can be scaled and positions can be changed). But how can we use hardware to implement this function?
Follow me to
Android development road 01, android road 01
I. android systems are divided into four levels: 1. the bottom layer is the linux core, including multiple drivers, providing the core functions that the operating system should possess; 2. on the linux
Complete permission parsing during Android 6.0 RuntimeI. Overview
With the release and popularization of Android 6.0, some changes brought about by the new version of the SDK should be addressed by developers. The first concern is the changes in the
Android screen adaptation summary, android screen adaptation
I. concepts that need to be understood first
1. screen size: the screen size of a mobile phone we usually call. For example, Apple's 4.7 inch and glory 6's 5.5 inch. The inch is 1 inch (2.5
Android: TextView achieves the text drive effect (the spoofing system gets the persistent focus)
In general, we need to set this setting in the xml file to achieve the effect of text drive lights.
I will not explain what everyone
Bluetooth for AndroidI. Bluetooth package Introduction
The Android platform provides an android. bluetooth package that enables communication between bluetooth devices. There are a total of 8 classes, and the four frequently used classes are as
Android classic Demo (reproduced) and androiddemoA good resource blog post, reposted and shared with you: 1. sample projects provided by the Android teamIf you do not start by learning the sample code provided by the Android SDK, there may be no
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