Custom content provider

Custom content provider 1, What is content provider 2, Content provider role 1. Content provider 2. Content resolver 3, Custom content provider 1. Custom content provider Step: (1) Custom class inherits ContentProvider and rewrites its methods (2) Manifest file registration content provider 2. ...

Posted by ericm on Wed, 24 Jun 2020 04:25:53 +0200

Specializing in fancy conquest of custom View, do you know all kinds of basic drawXXX() methods?

Please read this article before reading it Specialize in fancy (1) to the simplest custom View, increase self-confidence, you can do it. As the second part of the fancy series, there is no nonsense in this part. It's all the basic knowledge needed to learn the custom View well. For example, to learn Eng ...

Posted by naturalbeauty7 on Tue, 23 Jun 2020 05:38:14 +0200

The lowest coupling way to add title block in history

preface Most pages have a title block, which usually encapsulates the initialization code of the general title block in the base class, and then only needs to include a title block layout in the layout code, so it is very convenient to set the title block in the Activity. This may be the current more ...

Posted by zkoneffko on Mon, 22 Jun 2020 10:36:33 +0200

Android interprocess communication -- understand Binder through AIDL and write Binder service

Series of articlesAndroid interprocess communication (I) - Android multiprocess modeAndroid interprocess communication (2) - understanding Binder's mechanismAndroid interprocess communication (3) - understand Binder through AIDL and write Binder service In the previous chapter, I have learned the comm ...

Posted by lovely on Mon, 22 Jun 2020 06:28:49 +0200

Apple-like volume control column

After the upgrade of the tablet, we found that in the new IOS system, the volume-adjusting controls appearing after the scroll make people look very comfortable, good, try to achieve the following on Android. Above: The end result is this. Ideas for implementation: First, draw a rectangle. Step 2, draw a rounded rectangle on top of the ...

Posted by Hillu on Sun, 21 Jun 2020 18:10:04 +0200

Mobile GIS Development: mobile base station positioning + offline slice map (vector vtpk + grid tpk) navigation Android APP

catalog Write at the beginning text 1, Interface layout 2, Function realization 1. Display online map and positioning 2. Acquisition and display of base station information 3. Acquisition and analysis of geographic information 4. Display grid offline map (. tpk) 5. Display vector offline map ...

Posted by jesirose on Sun, 21 Jun 2020 12:54:19 +0200

Self study python for one year, and finally transform into a java Engineer!

The language is the same, no matter c, python or java, the syntax feels similar, but Python is really hard to find a job. Several recruitment platforms have looked around, and there are only a few, so they sprouted the extension java route to make up for the advantages of job search. In the future, you ...

Posted by popsiclesph on Sun, 21 Jun 2020 10:24:05 +0200

AOP application scenario actual combat - develop efficiency improvement tool based on AspectJX

Article catalog preface Scene practice Log printing Pain spot solve Definition notes Defining cuts and pointcuts Use example Thread switching Pain spot solve Definition notes Defining cuts and pointcuts Thread switching method Use example Thread name detection Pain spot solve Defining cuts ...

Posted by MikeyNoedel on Sat, 20 Jun 2020 10:43:16 +0200

How to use HMS Nearby Service to develop a business card exchange function for your APP?

                         . As a result, there are many apps and small programs for exchanging business cards in the market. So, how to develop a business card exchange function fo ...

Posted by Japher on Fri, 19 Jun 2020 04:07:33 +0200

ContentService simple analysis

ContentService uses the observer mode, and APP registers Uri messages of interest to ContentService through ContentResolver.When the corresponding data changes, ContentResolver calls the notifyChange function to notify ContentService of the corresponding Uri data changes, ContentService queries the corr ...

Posted by anoesis on Thu, 18 Jun 2020 18:22:30 +0200