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
(1) Custom class inherits ContentProvider and rewrites its methods
(2) Manifest file registration content provider
Posted by ericm on Wed, 24 Jun 2020 04:25:53 +0200
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
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
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
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.
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
Write at the beginning
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
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
Defining cuts and pointcuts
Defining cuts and pointcuts
Thread switching method
Thread name detection
Defining cuts ...
Posted by MikeyNoedel on Sat, 20 Jun 2020 10:43:16 +0200
. 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 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