Android

1. Hide the title bar // hide the title bar this. requestwindowfeature (window. feature_no_title); 2. Hide the status bar // hide the status bar this. getwindow (). setflags (windowmanager. layoutparams. flag_fullscreen, windowmanager. layoutparams.

Regardless of the language, it is important to understand the output of information, such as VB's msgbox, JS's alert, and C #'s MessageBox. show. This is of great significance for debugging. Android outputs the following methods: 1. log

Android API supports the development of applications that can send and receive SMS messages. Program . Currently, the android simulator we use in the development process does not support sending SMS, but it can receive SMS. Now let's explore

  Preface This chapter is about android. widget. ViewSwitcher. The version is Android 2.3 r1. The translation is from "ivanlee". Thank you again "ivanlee "! I look forward to your participation in Android Chinese API translation, contact me

  Preface This chapter is about android. bluetooth. bluetoothClass. device, for Android Bluetooth part chapter translation, version for Android 2.3 r1, translation from Sun Yat-sen University's "Android Club SYSU", welcome to visit their WIKI: http:/

This example shows how to slide between the left and right of an image in Android.   　　The sliding effect is used in Android. In this example, ViewFlipper is used to implement the sliding effect. Of course, other views can also be used to implement

Recently, I am working on an image upload function. I need to provide the path for uploading images to the SD card. I have read some examples on the Internet. The code is very simple after debugging. The layout file is as follows: Copy codeThe Code

Copy codeThe Code is as follows: W/ResourceType (756): Failure getting entry for 0x7f020004 (t = 1 e = 4) in package 0: 0xffffffb1 D/AndroidRuntime (756): Shutting down VM W/dalvikvm (756): threadid = 1: thread exiting with uncaught exception (group

Android horizontal and vertical screens should solve two problems: one. Layout problem; 2. Reload.1. layout problems:If you do not want the software to switch between the horizontal and vertical screens, the easiest way is to do so in the

Document directory Terms and concepts Http://developer.android.com/guide/practices/screens_support.htmlTerms and concepts Screen size Actual physical size, measured as the screen's diagonal. For simplicity, Android groups all

Features of componentsFor the four components of Android, Activity, Service, ContentProvider, and Service, there cannot be Setter and Getter, nor can you add interfaces to the component. The reason is that all components are called to the system

Android obtains information about the cpu, memory, version, and power of the system. 1. CPU frequency and CPU information:/proc/cpuinfo and/proc/stat.By reading the file/proc/cpuinfo system CPU type and other information.Read/proc/stat all CPU

TextView in Android supports some Html format tags. This includes common font size and color settings and text links. It is easy to use. You only need to use Html class conversion.For example: TextView. setText (Html. fromHtml (str )); However, in

In Android application development, we will use various types of code debugging. In fact, after Android development, we may encounter some random problems, such as high cpu and memory leakage, we cannot perform simple code debugging. We need a

SAX is an xml parser with high resolution speed and low memory usage. It is suitable for Android and other mobile devices. An event-driven file is used to parse an XML file. That is to say, it does not need to parse a complete file. In the process

I. Use the Pull parser to read XML files In addition to using SAX or DOM to parse XML files, you can also use the Android built-in Pull parser to parse XML files. The Pull parser is an open-source java project that can be used for both android and

Content Provider:A component must be placed under the main package or sub-package of the application; The component configuration needs to be configured in the configuration file; the content provider needs to be configured in the application

Don't worry about the remaining memory size. In fact, many people bring the habit of using other systems. Most android applications do not exit the design, which is related to the system's scheduling mechanism for processes. If you know java, you

I. main. xml layout File Ii. Core code Package com. ljq. test;Import java. io. ByteArrayOutputStream;Import java. io. File;Import android. app. Activity;Import android. content. Intent;Import android. graphics. Bitmap;Import android.net. Uri;

1. Activity Lifecycle During Game Development, we only need to reload the onCreate (), onResume (), and onPause () methods, because onResume () and onPause () methods will be called no matter how it is. After onPause (), the system may kill the