android:onclick method change background image

Threading model of Android

1 Introduction The term refers to the original meaning of the robot Android, Google in November 2007 issued to named Android open source mobile device integrated platform, including Linux-based operating system, middleware and key mobile applications. And

android API1.6 - 2.1 Change Summary

Android 2.1 API change summary: Live Wallpapers <br /> Dynamic Desktop API provides the following additional dynamic desktop you develop: • New android.service.wallpaper package. • New WallpaperInfo class. * Upgrade WallpaperManager . Additional not

Android threading model analysis (including UI updates)

1 Introduction The original meaning of the term refers to the robot Android, Google in November 2007 released to the open source Android mobile device named integrated platform, including Linux-based operating system, middleware and key mobile application

android difference between the various platforms (Reprinted)

Android 1.5 API change summary: UI framework · Framework for easier background / UI thread interaction • New SlidingDrawer new HorizontalScrollview component component AppWidget framework * Create a desktop AppWidget about the API. * To provide custom con

single-threaded model in the UI android

1 Introduction The original meaning of the term refers to the robot Android, Google in November 2007 released to the open source Android mobile device named integrated platform, including Linux-based operating system, middleware and key mobile application

Department of famous Gate Android (7) - Controls (View)

Department of famous Gate Android (7) - Control (View) of the ZoomControls, Include, VideoView, WebView, RatingBar, Tab, Spinner, Chronometer, ScrollView Author: webabcd Android describes the use of various controls (View) ZoomControls - Zoom in / out but

android Learning Summary 4

One with a VIEW as a message indicating btn3.setOnClickListener (new Button.OnClickListener () ( public void onClick (View v) ( View view = inflateView (R.layout.view); TextView txtMsg = (TextView) view.findViewById (R.id.txtMsg); txtMsg.setText ( "p

Custom android Intent Action and inheritance TextView to form a dynamically changing text of View

/ / Activity package com.android.Somejavaknowledget; import java.util.Date; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.Window; import android.view.View.OnClickListene

Custom android Intent Action and the formation of a dynamic change of succession TextView text of View

/ / Activity package com.android.Somejavaknowledget; import java.util.Date; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.Window; import android.view.View.OnClickListene

Android mobile application developers to share development experience - QR generator

Students blog to share the first Google Summer Competition - 2010 Android article Statements about: This event is organized by Google to require students in the school. I graduated this year, but continued on the study, and now appears to be in no one

Learning about Android thread

1. Android process Read thread in Android must first look at Android before the process. When a program when you first start, Android will start a process and a main thread LINUX. By default, all components of the program will be in the running processes

Department of famous door Android (7) - Control (View)

Department of famous door Android (7) - Control (View) of ZoomControls, Include, VideoView, WebView, RatingBar, Tab, Spinner, Chronometer, ScrollView Describes the use of various controls in the Android (View) ZoomControls - Zoom in / out button control I

Department of famous door Android (5) - control (View)

Introduction The use of various controls in the Android (View) TextView - text display controls Button - Button Controls ImageButton - picture button control ImageView - Image Display control CheckBox - CheckBox control RadioButton - radio button con

Android Development How to use Google map

Since google 06 Since it entered China on a map, moving developments in the field several times the speed of growth every year basically. Android platform in the latest related applications, if they can understand our google map will be a great help devel

Android threading model

When you first start a program, Android, Android will automatically create a group called the "main" main thread of the thread. The main thread (also known as the UI thread) is important because it is responsible for the events assigned to the a

Process Handler Message Looper Android

1. Android process Before the thread in the understanding of Android Android must first look at the process. When a program when you first start, Android will start a process and a main thread LINUX. By default, all components of the program will be in th

Android threading model (Painless Threading)

When you first start a program, Android, Android will automatically create a group called the "main" main thread of the thread. The main thread (also known as the UI thread) is important because it is responsible for the events assigned to the a

The status bar at the android (statusbar) to add menu, home and way back shortcut

Completely changed the status bar, recommend a few png images, add Frameworks / base / core / res / res / drawable Next. Best to do a background image, replace statusbar_background.png In addition, I added a few icon, is the home menu, and back were norma

android ----> progress bar (ProgressBar)

When an application in the background, the front interface is not what information, when users do not know whether the procedures in the implementation, implementation progress, whether the application has encountered an error termination, then the need t

Android fifth chapter of the Service to improve

The last describes the use of Activity, and Intent , this time to introduce Service, if the Activity is compared to the foreground program, then the Service is a daemon, Service throughout the life cycle will only run in the background. Service with Activ

ImageButton in the use of android

Example illustrates the continuation of the previous chapter, examples of the application button event to re-design a background image of the button, the button with beautiful background image, but this time do not use the previous Button Widget, but chan

Android Development of a simple example

The Android Eclipse plug-ins by (ADT) can easily add a new Android project. List of engineering structures and the role of the main directory as follows: (1) Src: storing program source code, nothing to say. (2) Gen: store the java compiler automatically

Android SharedPreferences simple data storage class and examples of Detailed (through the "Remember Password" feature to learn SharedPreferences)

SharedPreferences is the Android simple data stored in a utility class. Imagine it is a little Cookie, it is by using a key on the way to the simple data types (boolean, int, float, long, and String) stored in the application's private directory (data

Chapter I: entering the door Android (program load applications)

Effect: main.xml <?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout android:id="@+id/widget0" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" > <Button an

Interestingly, full transparency Android - Activity and Dialog's fully transparent (to)

1.Activity students zzm transparent to the code of this interesting, it came out. First in res / values under construction colors.xml file, write: <? Xml version = "1.0" encoding = "UTF-8"?> <Resources> <Color name =

Android applications in the thread

1. Android Android thread in understanding the process before you get a first look at Android in the process. When a program when you first start, Android will start a process and a main thread LINUX. By default, all components of the program will be in t

Learning about Android threads

1. Android process Before the thread in the understanding of Android Android must first look at the process. When a program when you first start, Android will start a process and a main thread LINUX. By default, all components of the program will be in th

Into the use of the screen ViewFlipper

res \ layout \ main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:

Drawer Panel Study of

Members of the drawer first reaction is that the control provided by the system are as follows: In fact, the principle of the control that is simple white, namely: * ViewGroup such as: LinearLayout used to place a variety of View * Button for start / put

Transforming the use of the screen • ViewFlipper

res \ layout \ main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:

API Demos 2.2 reading notes (13) - Service

Service is running in the background, non-interactive component. It is not a separate process, not a thread. It is usually in their own application process, the main thread to run, unless otherwise specified. The following example combines the main featur

Gallery showed the picture to read SD card

In power in the picture below, there are still more convincing figure. Kid Fucai, so this is my demo and then east and west to find an example of their hash. Misconduct within the Department, bear with me more corrections! Waited three days to post,
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