Android Image Compression skills
Method 1: crop to compress
Method 2: Reduce the image quality (that is, reduce the image quality) to achieve the goal of compression.
This method is also a common method. The following describes how to downgrade
Android notes Intent usage Summary
Intent:
Official explanation:
An intent is an abstract description of an operation to be performed med. It can be usedstartActivityTo launchActivity,broadcastIntentTo send it to any
Use protocolBuf and iosprotocolbuf in MAC/IOSUsing the https://github.com/mingchen/protobuf-ios is first downloadedIt uses the command line
$ cd compiler$ ./autogen.sh$ ./configure$ make$ make install (optional)
The compiler is genrated
src/protoc.
Android camera application, android cameraPreface
Android adopts the mashup design concept when designing the architecture. That is to say, everything is set up, components are written by yourself, and components are provided by others, they can be
IOS one-time add all files to SVN command, iossvn
I use terminal commands to use svn, but there are two troubles when using the terminal.
The first one is that you cannot add all files at a time. Finally, I found such a command on the Internet.
IOS-NSRegularExpression: string to be segmented by regular expressions in ios
Socialization is more accepted by the society. When a social product is made, it will be displayed by @ others upon reply or forwarding. Click @ user to go to the user's
Interaction between UIWebView and webpage (JavaScript code is called in OC) and uiwebviewocInteraction between UIWebView and webpage (calls JS in OC)-(Void) viewDidLoad{[SuperviewDidLoad];// 1. webViewUIWebView * webView = [[UIWebViewalloc]
Project Practice ①-Kochi zhihu daily (0) --> NDK hides private data and Kochi ndk
① Android programmers are really tired. GAP, NDK. To tell the truth, I am basically familiar with it. If you want to deepen the foundation of Android, well, NDK is a
Android CTS test and androidcts Test
1. What is CTS?
CTS Introduction: Compatibility Test suite series Compatibility TestGoogle defines a compatibility specification (Compatible Definition) to ensure that a test complies with this specification.
Objective-C NSString: several methods for creating and initializing nsstring1 # import 23 int main (int argc, const char * argv [])4 {56 NSAID utoreleasepool * pool = [[NSAID utoreleasepool alloc] init];7 // get string encoding and error parameters
Conversion to Dalvik format failed: Unable to execute dex:, dalvikdex
This error is caused by the addition of unnecessary core library or repeated addition of the same library jar package. (There are related jar packages under lib in the project,
Android implements two back key prompts to exit the application interface, androidback
Press the back key twice in a row to display the Toast prompt and then press the exit function again. The key code is as follows:
Method 1:
/*** Press the return
Detailed Implementation of the turntable function and the turntable FunctionDetailed Implementation of the turntable Function
I. Custom turntable XIB+ (Instancetype) wheelView
{
Return [[NSBundlemainBundle] loadNibNamed: @ "HMWheelView" owner:
[Application girl, application girl
In the app market, top game categories tab games and software categories are implemented using viewpage.
The specific implementation code is as follows.
Public class MyTabView extends LinearLayout {/** The
The event Transfer Process of the responder chain, and response event TransferEvent Transfer Process of the responder chain1. hitText Method1. The hitText method calls this method when an event is passed to a control.2. hitText: Find the most
Android custom ProgressDialog and progressdialog
Reprinted please indicate the source:Http://blog.csdn.net/allen315410/article/details/41699063
When developing Android applications, we often encounter "latency" waits, for example, when loading data,
Implementation of phone call hanging in Android Development
Before Android 1.5, it was very easy to call TelephonyManager's endCall () method. However, after Android, for the sake of mobile phone security, Google engineers have hidden the endCall
[Android] how to switch from sub-thread to main thread at any time
Introduction
Android development often encountersNetwork request,Database Data PreparationAnd so onTime consumedAnd these operations areNot allowed in main thread. This will block
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