We need to get the physical dimensions of the Android phone or pad screen to facilitate the design of the interface or the implementation of other functions. Let's share some of the most common ways to help Android:
Get screen Height:
/**
*
The article will be based on the original foundation to do some extended functions:
1. Inertial sliding of pictures2. Picture scaling is less than the normal ratio, let go will automatically rebound into normal proportions3. Picture shrink enlarge
Activities provides an easy to manage dialog box mechanism for creating, saving, and replying, such as Oncreatedialog (int), onpreparedialog (int, Dialog), ShowDialog (int), Methods such as DismissDialog (int), which, if used, will return the
Androidrichtext help to achieve like QQ, micro-letter, a textview in both words and expressions have the effect of the picture, the use of plug-in framework, code simple, strong scalability.
The underlying framework package has only four Java files,
Android Operating Environment overviewAndroid is based on the Linux kernel and is designed for mobile terminal operating systems. Mainly includes the following aspects:
Application Framework:This layer provides rich application programming
This article describes the application of Android programming to automatically update, download, install the method. Share to everyone for your reference, specific as follows:
We see a lot of Android apps with Automatic Updates, and the user can
The simple realization of the micro-letter automatically Rob Red Envelopes service, the principle is based on the keyword to find the corresponding view, and then automatically click. Mainly used to accessibilityservice this ancillary services, the
First, a picture of the effect.
I. Design of Actionbar
The first is main.xml, define these menus, and the interface will be adjusted later
1.android:actionviewclass= "Android.widget.SearchView" invokes the system's Search
WebView can be called one of the most powerful controls on Android, omnipotent.So there is a need, the user in the app embedded in the WebView input account password, the app needs to capture the account password entered.
When the user input
Basic usage of ProgressDialog
ProgressDialog is the progress dialog box. The Android phone comes with a simple dialog box that we can use to define what we want to show in the dialog box ProgressDialog.
First look at the ProgressDialog inside the
The examples in this article explain the customization properties in Android, as follows
1. Introduction
For custom attributes, you are certainly not unfamiliar, follow the following steps, you can achieve:
Customizing a CustomView (extends
Although Microsoft also launched the Outlook.com client on the Android platform last December, it did not receive praise from consumers after the shelves, due mainly to the fact that the application display was a bit outdated, but the basic mail
Mobile phone with a font for a long time to change a new look? How can you easily change the new font? Blessed are the Friends of the machine! Font control are not to be missed! As a powerful font to beautify the butler, font Master 2.0.1 Update and
1. When you create a new Android library project or convert an existing project into an Android library project, if the project source code has the following statement:
int id = View.getid ();
Switch (ID) {
Case R.id.button1:
Action1 ();
Break
Android Network application development, there are mainly two ways, one is socket (is the encapsulation of the TCP/UDP Protocol), the other is the use of HTTP protocol, Android is mainly provided in two ways, HttpURLConnection and Apache HttpClient.
With large-screen mobile phones, pad and other mobile devices become standard, mobile phone watching video has become a majority of choice, but for the love toss a clan, this is not enough. March 25, like to create a surprise for users of Sogou
Through the mobile phone notification system, you can inform the user of some important information about the application. Fluent, comfortable, and friendly applications are inseparable from well-designed message alerting mechanisms. But not all of
Dbadapter has been created, now we can use the database. The following sections will introduce General CRUD (add, read, update, delete).
Add a contact to the table.
1. Use the previous project to add some code to the Databasesactivity.java.
The
Did not call through to super. onCreate (), didsuper. oncreate
android.util.SuperNotCalledException: Activity {com.xkyiliao.xkhospital/com.xkyiliao.xkhospital.activity.Act_HealthManagement} did not call through to super.onCreate() at
Use SharePreferences to access data (MOOC notes), sharepreferences
0. video address: http://www.imooc.com/video/3265
1. Use SharePreferences to access data:
Public class MainActivity extends Activity {@ Override protected void onCreate (Bundle
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.