Android Handler source code in-depth analysis, androidhandler
Let's take a look at the source code and look at the various principles of the source code. It's easy to use and know why it is the most awesome.
Handler source code analysis, from the
For FragmentManager findFragmentById, return nul, findfragmentbyid
First, let's look at the two generation methods of Fragment.
1. Generate with xml tags
Add an xml tag to the fragment's host activity.
1
The fragment class created by name for
Android Native layer Binder. transact () function call Binder. onTransact () function failure analysisQ: Why does the Android Native layer Binder. transact () function fail to call the Binder. onTransact () function?
Call Camera. when the api in h
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
Use immersive status bar with three Android Codes
People who have used android phones know that the status bar on the top of the screen is black when android uses the app, even if it is not black, it is different from the color of the opened app.
Implementation of Android Drawer
A drawer control required in Android. The following is a simple implementation process.
First, write a layout. The layout should be noted as follows:
1. It must be the drawerLayou layout.
Android. support. v4.widget.
How can programmers continuously improve their development skills and programmer continuous skills?
The only thing that remains unchanged in the world is change. The computer field has been changing. From basic frameworks to computing devices, there
Pull-down refresh (2), pull-down refresh
First look at the main layout activity_main.xml
Header_layout.xml
View the layout of each item in listview
Item_layout.xml
The above three la s can be viewed, and you may
How to control the custom output of LogCat in Android, androidlogcat
In Android development, LogCat is a very important debugging tool that can output a lot of information about projects or mobile phones. However, because the LogCat function is too
Multiple applications of Toast in android development and toast in android Development
The most basic function of Toast is to bring up a weak prompt. This is simple and I will not talk about it. Let's talk about some other functions of Toast.
When
Distinguish abstract classes from interfaces and abstract differences
The similarities and differences between the two are compared for clarity.
I. Differences between the syntax and the actual application
Abstract class:
Abstract: The class is an
IOS text attribute dictionary and ios text dictionary
During iOS development, it is believed that the parameter is a NSDictionary dictionary when the font, color, underline, and other attributes are required.
But which key values are correct in
IOS development tutorial -- How to Use the image at, ios --
Prepare an image in advance:
UIImage * image = [UIImageimageNamed: @ "red.png"];
This can be used before iOS 5.0:
NSInteger leftCapWidth = image. size. width * 0.5f;
NSInteger topCapHeight
UGUI multi-resolution processing and unityugui resolution in Unity
1. Use Anchors and outputs in RectTransform to adapt the layout of controls and forms
Anchors controls the layout position of the current Panel relative to the parent form. It
Android multimedia development and learning-creating image copies
What is creating a copy of an image? Because the image we retrieve directly from BitmapFactory is readable and cannot be modified. Assume that the user wants to modify the image.
Unity3D: Particle System, unity3dparticle
1. GameObject → Create Other → Particle System.
2. Select Particle System to see the following atomicity:
3. Particle System:
Duration: particle emission time (set to 5 seconds, every 5 seconds ). Looping:
Use of metadata-extractor to read image EXIF metadata in Android,
I. Introduction
Recently used in the development of metadata-extractor-xxx.jar and xmpcore-xxx.jar this thing, simply read a lot of articles to learn, to share and share. Work is
Android-AIDL Summary
AIDL (Android Interface Definition Language) AIDL is suitable for communication between processes and concurrent connections with multiple threads on the Service end. If it is only a single thread, you can use Messenger, if you
Android Source Code compiling apk import third-party package error, androidapk
The error message is as follows:
Make: * ** no rules are available to create the target "out/target/common/obj/APPS/AndroidWFS_intermediates/classes-full-debug.jar"
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