How does Android achieve click state of non-local images?

For local images, we can use selector to easily implement click states.However, in our project, the implementation of click-state for non-local images is still difficult for many people. Therefore, we will write this blog to explain this.In fact,

Full Screen with no title set for Android Activity

Set full screen and no title bar for activity. Use andorid. View. Window and Android. View. windowmanager. Window. feature_no_title indicates that no title bar exists. Windowmanager. layoutparams. flag_fullscreen indicates full screen. The usage

Steps for android to check the network connection status

To obtain network information, you must add the corresponding permissions to the AndroidManifest. xml file. 1) determine whether a network connection exists Copy codeThe Code is as follows: public boolean isNetworkConnected (Context context ){ If

Android viewpaper instance Discussion

I. First, let's take a look at the Tab sliding effect of Sina Weibo. We can slide by gesture, or click the above header to switch. In the same way, the White horizontal bar is moved to the corresponding tab header. This is an animated effect. white

Android Application Window (Activity) Window object (Window) Creation Guide

In the previous article, we analyzed the creation process of the runtime Context Environment in the Android Application Window. It can be seen that each Activity component has an associated ContextImpl object, and it also associates with a Window

In-depth understanding of file operation modes in Android Development

I. Basic Concepts Copy codeThe Code is as follows: // context object Private Context context; Public FileService (Context context) { Super (); This. context = context; } // Method for saving the file Public void save (String filename, String

RotateAnimation for Android Animation

Android provides 4 Animation: AlphaAnimation transparency animation effect ScaleAnimation scaling animation effect TranslateAnimation displacement animation effect RotateAnimation rotation animation effect This section describes the RotateAnimation

ScaleAnimation for Android Animation

Android provides 4 Animation: AlphaAnimation transparency animation effect ScaleAnimation scaling animation effect TranslateAnimation displacement animation effect RotateAnimation rotation animation effect This section describes the ScaleAnimation

Android animation TranslateAnimation

Android provides 4 Animation: AlphaAnimation transparency animation effect ScaleAnimation scaling animation effect TranslateAnimation displacement animation effect RotateAnimation rotation animation effect This section describes the

Android animation AlphaAnimation application details

Android provides 4 Animation: AlphaAnimation transparency animation effect ScaleAnimation scaling animation effect TranslateAnimation displacement animation effect RotateAnimation rotation animation effect This section describes AlphaAnimation

Android rounded corner image Solution

Now let's take a look at how to turn the four corners of the image into a circle. Why should we do this? If this is the case, the interface will be very beautiful. Let's take a look at the code. Java code: Copy codeThe Code is as follows: public

Code for setting rounded corner images in android

Copy codeThe Code is as follows: Android: id = "@ + id/layout" Android: orientation = "vertical" Android: layout_width = "wrap_content" Android: layout_height = "wrap_content" > Package com. test. demo; Import android. app. Activity;Import

Android multithreading technology application

Multithreading case -- Timer In this case, the interface is displayed after the screen is started. There is a text box on the screen to show the elapsed time, and there is also a "stop timing" button. Use case diagram. A single-threaded program

Graphic tutorial for building the myeclipse android Environment

1. Basic Environment preparation: Install JDK 8.6 or later and Eclipse3.3 or later (MyEclipse is also supported). I have installed JDK and MyEclipse. JDK1.6 My eclipse 8.6 2. Download the Android SDKUnfortunately, Android.com has been given to the

Add a floating desktop window for android

New android 360 mobile assistants are all envious of the display of only a small floating window on the desktop in android 360? In fact, there are two steps to implement this function: 1. Determine whether the current display is a desktop. I have

Android load dialog box asynchronous execution implementation method

In Android, data is obtained through a sub-Thread to connect to the network, and the loading progress dialog box is displayed for the user's operations, which requires Thread and Handler to execute time-consuming code in the Thread, after completion,

Android resolution adaptation method

In the past, when I was working on a project in the company, I encountered a resolution adaptation problem. At that time, it was quite tangled. Because there was no Internet connection, this problem was all black and dark, and I tried many methods,

Android horizontal and vertical screen switching without restarting activity Solution

Some netizens will find that the Activity is switched to the background or the layout is switched from LANDSCAPE screen LANDSCAPE to PORTRAIT. Switching the Activity again will trigger an onCreate method. We can go to androidmanifest. add the

Simple Android image flip animation implementation code

The following is an interesting Animation: It is suitable for the flip of an image. If there are multiple images, you can refer to the example in APIDemo to add an ArrayAdapter, which is simple, you can also make modifications to achieve what you

Binder communication mechanism of android IPC

The communication mechanism of the Binder is simple, but some problems have been encountered in the use process. Finally, we have solved the problem. Here we will summarize the problems and share them with you: 1. To use Binder for communication,

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