Android
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Android Gaode map positioning SDK integration and map function implementation
1： Baidu Gaode official website, and then create an application website: http://lbs.amap.com/ 1. Find the console and…… -
Android implementation of illustrated button example code
The renderings are as follows: code: The above is the example code of buttons in Android introduced by Xiaobian. I hop…… -
Android realizes user-defined curve chart of price trend
This article refers to the linechart of the open source chart library framework mpadroidchart Address: https://github.…… -
Detailed explanation of the use of timer in Java multithreading
We see a lot of timing functions on mobile phones, such as regular garbage cleaning, alarm clock, etc. the timer objec…… -
Red dot display of Android unread messages
In many apps, you often see small red dots of unread messages, as shown in the following figure: This function uses a …… -
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…… -
Implementation of displaying SQLite query results in listview
1. Get DB instance @ h_ 419_ 4@ 2. Get query structure @ h from cursor object_ 419_ 4@ 3. New simplecursoradapter obje…… -
Using viewholder to optimize the writing method of custom adapter in Android (required)
I've written a lot about adapter recently, and I'm getting familiar with it slowly. Using viewholder is mainly to opti…… -
Detailed explanation of reading Excel files in Android
Detailed explanation of reading Excel files in Android Recently, there was a need to build data in the app. The new pr…… -
Alertdialog in Android does not close the dialog box after clicking the button
The problem here: when I click the OK button, that is, the positive button in the alertdialog, we need to judge whethe…… -
Summary of data update methods for Android media library
Summary of data update methods for Android media library In the project, we often create our own directory to store so…… -
Batch display function of Android listview data
Batch display of Android listview data Layout file activity_ call_ safe2.xml CasllSafeActivity.java The above is the b…… -
Android sets EditText to get focus and pop up the soft keyboard
Android sets EditText to get focus and pop up the soft keyboard PS: enter EditText on the Android page to automaticall…… -
Use example code of spring boot timing task
Configuring scheduled tasks in spring boot is extremely simple... Let's look at the example code below: The above is t…… -
Android devices do not recognize the awk command. What if busybox is missing
Android device does not recognize awk command, missing busy@R_ 693_ 2419@ 1、 What is Busy@R_ 693_ 2419@ ？ Busy@R_ 69…… -
Detailed explanation of example of Android intent sending broadcast message
Android intent sends broadcast messages Another purpose of intent is to send broadcast messages. Both applications and…… -
android:layout_ Gravity and Android: the difference between gravity and Android
1. Let's first look at Android: layout_ Gravity and Android: the difference between gravity and Android. android:gravi…… -
Simple implementation method of Android local verification code (preventing violent login)
0. Preface The verification code is everywhere. Someone asked me, do you know what is under the Da Vinci password? Yes…… -
Android uses shared preferences to store passwords and remember passwords in the login interface
There are many storage methods for Android. The storage method used here is SharedPreferences, which uses the map data…… -
Detailed explanation of image zooming implemented by Android custom ImageView
Detailed explanation of image zooming implemented by Android custom ImageView I think this custom ImageView is very ea…… -
Android determines whether the user has allowed the camera permission instance code
For example, since it is to judge whether the user has allowed the camera permission, we will ignore the problem of ma…… -
Two ways for rxjava to implement three-level cache in Android
As mentioned in the title of this article, rxjava is used to realize the three-level cache of data, namely memory, dis…… -
Return value of ontouch method in Android ontouchevent event (Introduction)
1. If return false, the ontouch event is not successfully executed. After executing the code in ontouch, the ontouch e…… -
Detailed explanation of using AspectJ in Android
What is AOP AOP is the abbreviation of aspect oriented programming, that is, "aspect oriented programming". It is diff……