Learning Objectives:
1. How to establish gallery in Android
2, a preliminary understanding of the principle of Android adapter
3, the implementation of simple control scaling animation
Introduction:
1, gallery is a built-in Android control, it
Android does not have its own color editor, in order to let the user intuitive choice of color, made such a control, the effect diagram is as follows:
Top color bar for the main color bar, the user can choose the roughly needed color, below is
Objective
When paying with Alipay, we can see that success or failure will have an animated hint, if we need to do this, of course, you can let the designer to make you a GIF, but we know that the image memory consumption, we can use code
Previously introduced three kinds of data storage forms of Android system, http://www.jb51.net/article/99468.htm. Today, there are two other types of content providers and networked storage, respectively. Some people may think that the memory
Notification is a message that is displayed outside of your application's regular interface. When the app lets the system send a message, the message is first displayed as a chart in the notification bar. To see the details of the message you need
Recently has been calling the micro-letter API, but found that the call has been unsuccessful, tangled up for a long time, all aspects of finding tutorials, find the official, the official documents are only very vague, said to be three steps away.
When you do an Android project, you find a problem: When the application exits, click "Settings" to view the application, and the interface shows you can click "Force off".
I think the reason for this is that there are still open activity not being
An Input Method Editor (IME) is a control that lets users enter text. Android provides an extensible framework for input methods that allow applications to provide users with additional input methods, such as soft keyboards or voice input. Once
Using the style file, create a new Styles.xml file in the values directory, and write the following code:
Copy Code code as follows:
Code highlighting produced by Actipro Codehighlighter (freeware) http://www.codehighlighter.com/-->
Call to send a text demo
Copy Code code as follows:
public class Mainactivity extends activity {
EditText Mphonenum,mmessage;
@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
First, write at the front
This time, let's introduce the five ways that Andong--button bind events for controls.
Second, the concrete realization
First: Bind directly to the button control:
Step 1, set android:onclick= on the button control,
This example for you to share the Android nine Sudoku picture display of the specific code for your reference, the specific content as follows
– Main Page Face--–
A button public
class Mainactivity extends activity {
@Override
protected
In HTML, we all know what the layout means, in simple terms, the page is divided into modules, such as the HTML Div, table and so on. So is the case with Android. The Android five layout makes the interface more beautiful and more convenient to
The effect chart is as follows:
The default load is the first time
Select the original queue:
Cascading Effect Chart:
Critical code to the Drop-down list select event Listener binding ID:
Copy Code code as follows:
int pos =
As a result of open source of Android project, the market of n many Android software appeared. In order for us to develop the software to have more users to use, we need to release to the N-market, software upgrades, we also have to go to the
This example for you to share the Android access to mobile phone location for your reference, the specific content as follows
1, under the project SRC Create ... service pack, then new Gpsservice class
Package com.zebra.mobilesafe.service;
This article implements the Android system camera call to take photos
The layout of the project is fairly simple, with only one button:
First open the list file under the Packages\apps\camera folder and find the following code:
In Android applications, image clipping is also a feature that is often used. The Android system can be cropped with an implicit intent to invoke the system application. But doing so may have different effects on different phones, and even more
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