Android

The progress of human science and technology comes from exploration. The exploration comes from the original discovery. Of course, the App layout is not so advanced. This article is just a summary.This article is a must-have knowledge for android

Original Http://developer.android.com/guide/practices/optimizing-for-3.0.html (The original text has been updated. The following link shows the original text of this article.2011-5-4:Http://www.devdiv.com/android/docs/guide/practices/optimizing-for-3

Hello everyone, our tutorial is to customize the View in the Android tutorial. For Beginners, they are used to the traditional page layout method of Android, as shown in the following code: View plaincopy to clipboardprint?Android: orientation =

In some previous articles, data transmission between the upper layer and the middle layer is involved. In short, the use of parameters and returned values. This is because the most important thing to do in the middle layer is data transmission and

This article focuses on the concept of Widget development. In this example, we want to develop a Widget on the mobile Android platform. The content of this Widget is obtained from the official website based on the input account. Of course, this

OverviewYou can use the metadata of viewport, CSS, and Javascript to set a suitable page for screens with different resolutions.The technology in this document applies to Android 2.0 and later devices. It is applicable to the pages displayed in the

Method 1: (java is not recommended for android) When I first came into contact with android Thread Programming, I used to be like java and tried to solve the problem using the following code. New Thread (new Runnable (){Public void run (){MyView.

We have learned how SurfaceFlinger works. With this foundation, we can analyze the UI Implementation of the Android system on the Java layer from the beginning of this article. We know that among the four components of the Android Application, only

I. What have code obfuscation been done?1. code obfuscation is usually used to remove unnecessary Code. It is used to rename classes, attributes, and methods with obscure names to reduce the size of the Code, increase the difficulty of decompilation.

The following is a question and answer: Generally, after creating an Android project, AndroidManifest. xml contains the following content:Package = "com. myactivities"Android: versionCode = "1"Android: versionName = "1.0" type = "codeph" text =

When the image size is too large or the number of images is too large, BitmapFactory decoding will produce java. lang. outOfMemoryError: bitmap size exceeds VM budget. To use it properly, you need to allocate less memory. The specific solution is to

You can use the View animation system to execute the animation on the View object. A complementary animation is an animation that is calculated using starting point, ending point, size, rotation, and other animation features. The compensation

Because it is personal developers rather than team development. In the development process, there are no such specifications, no detailed requirements, no interface design, and no detailed development plan. Therefore, the development of an

Receive camera intent resultsOnce you build and execute an image or video camera intent, your application must be configured to receive intent results. this section describes how to intercept callbacks from the camera intent so that your application

Detect available features [Java]// Get Camera parametersCamera. Parameters params = mCamera. getParameters (); List focusModes = params. getSupportedFocusModes ();If (focusModes. contains (Camera. Parameters. FOCUS_MODE_AUTO )){// Autofocus mode is

After the phone is set to untitled, it will always go down. At first it was thought that it was a layout problem. If it was changed, it was still not in progress. Then we created a new project and found that it was still not in progress! What's

1. Generate a keystoreLocate the position in the jdk binfile and enter the following name line: Keytool-genkey-alias ChangeBackgroundWid get. keystore-keyalg RSA-validity 20000-eystore ChangeBackgroundWidget. keystore Do not wrap the line in the

Preface As we all know, each Android application has a certain memory limit when running, generally 16 MB or 24 MB (depending on the platform ). Therefore, when developing applications, you must pay special attention to your memory usage. Generally,

360 and Kingsoft mobile guard both have a feature that makes android Developers suffer: Check advertisement notifications!When there is an advertisement in the notification bar, run 360 to perform a check, which will tell you which application the

Method 1: Many applications have a startup interface. You are welcome to gradually hide the image. There are two methods to achieve this effect (only two methods are found at the moment)1. When two activities are used, load the first Activity when