Android keypad button monitoring

Recently, when I was working on a project, I encountered a headache. The problem was that I had to listen to user input from time to time, and most of the user input was completed through a soft keyboard, what should I do if the Android platform

Use tcpdump in Windows to capture network packets for Android

1) first download the tcpdump tool for Android, which can be easily searched online. 2) Put tcpdump in the/data/local/directory of the mobile phone. You can use the 91 mobile assistant to directly import the tcpdum file to the/data/local/directory,

The font size of the Android mobile phone varies with the resolution.

Two solutions: I, 1. obtain different font sizes based on different resolutions.Create in resIn values-480x320/strings. XML, set 30px AndIn values-800x400/strings. XML, set 30px The font size of 480x320 and X is 30px and 40px respectively;

Android learning notes ---- simple introduction to viewflipper

Viewflipper is a simple implementation provided by Android, multiple view switching controls, and animation effects can be added. First, let's take a look at how viewflipper is described in the document. Simple viewanimator that will animate

Android userdata. img

1. Structure of the android File System after the android source code is compiled, the system. IMG, ramdisk. IMG, and userdata. IMG image files are obtained. Ramdisk. IMG is the file system of emulator. IMG includes the main packages, libraries,

Android custom keypad

Oh, we found the Android. inputmethodservice. keyboard class, that is, the android can customize the keyboard class. A simple example is provided for your reference, First take a look: Keyboard content layout: keycontent. xml

Android calls the call and text message Functions

Android calls call. The SMS function can be called directly or indirectly. You can set the intent attribute to achieve this: Direct call without user confirmation: // Call intent = new intent (intent. action_call, Uri. parse ("Tel: 10086");

Android custom menu

This article is selected from the android Development Authority guide. The android SDK provides a default menu creation mechanism. However, although menus created through this mechanism are fully functional, the interface effect is a bit "earthy ".

Android image loading Optimization

Android applications frequently process images. Especially when a program loads a large number of images and high-resolution images, oom exceptions are most likely to occur. Below are some of my memory loading methods. Method 1: public Bitmap

Use of setprop, getprop, and watchprops commands in Android

In the Android system, there are some Initialization Configuration files, such: /Init. RC /Default. Prop /System/build. Prop The file contains the system attribute values configured for boot,   These property values can be obtained through

Access to Android file resources (raw/data/asset)

In Android development, we can't do without the use of resource files. From drawable to string, to layout, these resources provide great convenience for our development, however, most of the resource directories we usually access are the following

Android ADB "Push Pull" Chinese Support Solution

Android ADB "Push Pull" Chinese Support Solution Under the Windows File (folder) Naming adopts GBK encoding, while in Android UTF-8 encoding, all the push and pull commands using ADB may cause errors due to different encoding methods. To solve this

The role of odex files in Android ROM and introduction from mobile development network)

Careful netizens may find that there are many odex files in the android Rom. What is the role of this odex file relative to the DEX file in the APK? Android123 reminds you that, if you observe carefully, you will find that the file names correspond

Android requires manual exit

More than once, more than one person asked this question. I answered: No. However, we still need to record it. We may explain the cause from understanding some internal mechanisms of the system for application management. For Android systems,

Set full screen for Android

During development, we often need to set our applications to full screen. Here I know two methods. One is to set them in code, another way is to change it in the configuration file!   1. Set in the Code:   [Java] View plaincopy Package com.

Android webview support for JS and href

Webview supports JavaScript, but it is only limited to local JS Code. It does not provide recursive download functions as powerful as PC browsers (possibly because of limited storage of mobile phones ). Therefore, to develop a JS-based anroid

[Android] Summary of intent page Jump issues and jump refresh issues

I. Overview: as a public class, activity inherits from contextthemewrapper. Activity focuses on what users need to do. Almost all activities interact with users. Therefore, the activity uses setcontentview (View) to display interface elements.

Webview for Android

Webview can be reused on the android interface. First, write a simple webview implementation.It is very simple and directly added to the default ADT project. Added a webview to access my blog homepage.First, remember to add the Internet access

Some minor issues with Android

Sometimes there are some seemingly strange problems. Record it here. 1. Drag the listview to the blacklist The list is displayed normally, but the entire background turns black as soon as it is dragged. After the drag is stopped, the color changes

Android JNI Development (advanced tutorial)

I will explain in detail about Java yesterday.JNI-related exception handling and thread security issues are mainly caused by insufficient memory outofmemoryerror and array out-of-bounds exceptions in JNI.Arrayindexoutofboundsexception, array

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