Android
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Using spinner to realize the drop-down list function in Android
Spinner Spinner is a list selection box. After the user selects, a list will be displayed for the user to select. Spin…… -
Three methods to solve the problem that EditText does not display the cursor (summary)
There are three solutions 1. Add the following attributes to EditText 2. Add the following attributes to EditText 3. I…… -
The layout example code of the navigation bar turning the page below is displayed in the Android page
When there are too many page entries, paging is required. To display the layout related to paging in the layout, use A…… -
Android actionbaractivity setting full screen untitled implementation method summary
Android actionbaractivity setting full screen untitled implementation method summary preface: The new activity inherit…… -
Simple implementation of adding digital corner markers to Android Applications
Corner sign, English is badge, which means "badge, badge, medal; symbol, mark". design sketch You can see the red circ…… -
Discuss in detail the differences between set, pre and post of matrix in Android
Before talking about the difference between set, pre and post, let's talk about matrix. Matrix contains a 3 x 3 matrix…… -
Simple implementation of Android catching exceptions and uploading them to the server
In the project, our application often crashes. If your project has been sent to the application market, the applicatio…… -
On the conflict resolution between viewpager and rotation chart
Examples are as follows: The above article on the conflict resolution between viewpager and rotation chart is all the …… -
Add back button function in Android title bar
The return button in the title bar is used more in actual use. Today I will talk about my experience in project develo…… -
Android’s method of handling empty lists (must see)
Listview in Android is used to display data. If the list is empty, you can set the content displayed when it is empty …… -
Android Alipay client HTML5 page can not automatically shut down the solution to the problem.
The company's products are paid by Alipay mobile web interface. When the three party merchants enter the jump address,…… -
Simple implementation of POS printer call under Android
This paper is based on gp58 series, which is compatible with ESC / POS instruction set and is universal to Epson print…… -
Talking about Android adding monitoring and data confusion to recyclerview
Add listening for recyclerview 1. Write the internal interface in the implemented myadapter: 2. Continue to add the fo…… -
Quickly solve the problem that onactivityresult in fragment is not called
Fragment starts another activity through the startactivityforresult method. When it returns, the onactivityresult meth…… -
Perfectly solve the problem of prohibiting PC from accessing mobile phone storage unit through MTP under the condition of Android m lock screen
@H_ 403_ 2@1 . main problem solving files: / m8976 / packages / providers / mediaprovider / SRC / COM / Android / prov…… -
Java timer problem example analysis
Timer problem Timer is a basic component. Whether it is user space program development or kernel space program develop…… -
Android studio download update Android SDK network exception or unable to download
Android studio download update Android SDK network exception or unable to download Today, I reinstalled Android studio…… -
The font size of APP in Android does not change with the system
In "setting", "display" and "font size", we can set the system font size If the font of the app interface is modified,…… -
Customize dialog style activity in Android. Click the blank space to hide the soft keyboard function (dialog does not disappear)
1、 Demand trigger scenario: The project needs to develop dialog display with EditText. When editing EditText, click t…… -
Android realizes bitmap rotation effect
Bitmap rotation can also be realized with the help of matrix or canvas. Set the rotation angle through the postrotate …… -
Detailed explanation of the calling sequence of set, pre and post of matrix
When matrix calls a series of set, pre and post methods, it can be regarded as inserting these methods into a queue. O…… -
Animation effect of popupwindow entry and exit in Android
No more nonsense. I'll post the code directly to you. The specific code is as follows: Then define the animation file …… -
Simple practical case of popupwindow (displayed below the control)
Step 1: private PopupWindow mPopupWindow; Step 2: write a popupwindow layout file XML Step 3: write code in activity N…… -
Quickly handle the case where the listview is empty
List display is often used in mobile development. For list display, we often use listview control. There are usually t…… -
Android implements unread corner marks on the desktop
Display the number (number of unread messages) on the icon of Xiaomi Samsung Sony mobile phone: this part of the code …… -
Filter and listener listener details
Filter and listener listener details Filter filter Introduction to filter Filtering the access to resources is equival…… -
Printing example of Android Bluetooth connected ESC / POS thermal printer (Bluetooth connection)
A mobile CRM project of the company recently needs to add the function of small ticket printing, which is the kind of …… -
How Android changes the default location of toast
The default location of toast in Android is near the bottom of the screen, which is sometimes inappropriate. For examp…… -
Implementation method of Android optimized adapter through viewholder (must see)
Definition of adapter class: The adapter object is the bridge between the AdapterView and the underlying data. The ada…… -
Android determines whether the current language environment is Chinese
If you don't have much to say, please see the code: PS: Android determines what language the current system uses Judge…… -
Implementation method of Android Scrollview sliding to the top or specified position
In Android development, we often encounter the phenomenon that one screen can not display all the contents. We also kn…… -
Example code of button using verification code countdown in react native
During the development process, there is a scenario of obtaining mobile phone verification code. At this time, there a……