There are many ways to implement timing in android. The common combination of Handler and Thread, handler.postDelayed, and AlarmManger to be used can implement timing tasks, but the usage scenarios are quite different. Here is how to use AlarmManager to implement timing tasks. Knowledge points involved:
1) BroadCastRec ...
Posted on Sat, 02 May 2020 17:05:05 -0700 by Mikell
1.RecylerView is a control in support-v7
2. This control is used to display a large number of datasets in a limited window, such as ListView and GridView.
RecyclerView architecture provides a plug-in experience, high degree of decoupling and exceptional flexibility. It provides different settings
Posted on Sat, 02 May 2020 12:01:42 -0700 by TraceyK
In java development, encryption is still a very common requirement. There are two common encryption methods: symmetric encryption and asymmetric encryption, which use different encryption and decryption keys. The detailed encryption principle will not be discussed here. AES encryption is widely used in Java
Posted on Sat, 02 May 2020 07:56:31 -0700 by phpconnect
[reading notes] analysis and practice of Android source code design mode (1) [reading notes] analysis and practice of Android source code design mode (2) - single case mode [reading notes] analysis and practice of Android source code design mode (3) - builder mode [reading notes] analysis and practice of Android source ...
Posted on Sat, 02 May 2020 06:48:12 -0700 by danieliser
Today, there is a requirement for the project. Take a screenshot of the Activity interface, save it locally, and then send the picture when you send it instantly
Process: screenshot - > save to local - > send broadcast notice to update Gallery
Paste the renderings first
Screen capture process
Files saved after screen capture
Posted on Sat, 02 May 2020 06:41:57 -0700 by partypete
Implementation effect: radiobutton uses drawableTop to display pictures (use drawableTop selector and text color change selector in xml) code to set picture size)
Put these 6 pictures (unchecked, checked)
Posted on Sat, 02 May 2020 03:36:19 -0700 by weknowtheworld
1, First, let's see the effect
import android.support.v7.widget.To ...
Posted on Sat, 02 May 2020 03:35:56 -0700 by weazy
We believe that the effect shown in the figure is not unfamiliar to everyone. We can use many methods to achieve this effect. Here we use CountDownTimer timer to simply encapsulate this effect, which is convenient for us to call at any time.
The first page defines the following attributes in attrs.xml:
Posted on Fri, 01 May 2020 16:08:39 -0700 by thunder708
Project Requirements: app communicates with Bluetooth, and receives messages sent by hardware keys via Bluetooth. app does the corresponding operation, which is similar to Bluetooth headset listening and hanging up.
Less contact before Bluetooth development, classic Bluetooth development has been done android bt , BLE does little, so I don't ...
Posted on Fri, 01 May 2020 14:11:53 -0700 by Paulkirkewalker
Android NDK development tour directory
Compression form of command line transcoding under Windows
ffmpeg -i input.mov -b:v 640k output.mp4
Android also uses the form of FFmpeg command line (mixed encoding) for video transcoding compression.
1. Introduce FFmpeg transcoding Library
2.Android core code
2.1.jni Java declaration
Posted on Fri, 01 May 2020 14:05:44 -0700 by ReignFire