android exceptions collect error information and save it to the crash folder

Save the log file to the sdcard, directory: crash folder under the sdcard root directory First, set permissions, no permissions to the final effect <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>Two classes must be crea ...

Posted on Wed, 15 Jul 2020 11:12:51 -0400 by brandon

kotlin uses Parcelize annotations to simplify Parcelable writing

kotlin uses Parcelize annotations to simplify Parcelable writing Parcelize Note kotlin added support for parcelable at version 1.1.4 The Android extension now includes an automated generator that implements Parcelable.The generator automatically creates the writeToParcel ()/ createFromParcel () method by declaring the serialized propertie ...

Posted on Wed, 15 Jul 2020 10:24:14 -0400 by mallard

Java Server-side CORS Cross-Domain Configuration

Now the web program architecture tends to be more and more front-end and back-end separated, the benefits of front-end and back-end separated, not to mention here.But one of the problems we face is cross-domain.Here is a brief record of the solution on the server side. References and references to relevant parts of this article http://blog ...

Posted on Tue, 14 Jul 2020 10:34:25 -0400 by jonasr

Android Custom WheelView

function Wheeled Select View, similar to TimePicker or DataPicker, allows you to set whether or not there is a boundary (the beginning and end meet) Design sketch Explain Inherited from View to assist with scrolling with OverScroller, using a minimum API version of 9.If necessary, you can use Scroller instead, w ...

Posted on Mon, 13 Jul 2020 11:47:41 -0400 by SmoshySmosh

List operations in Python

Python's list manipulation is powerful and convenient (as opposed to Java)Say nothing about simple, regular operations (this is not an introductory tutorial) and introduce a few very specific examplesAdd to # Append to End(append) li = [1, 2, 3, 4, 5] li.append(6) print('li = %s' % li) # Output: li = [1, 2, 3, 4, 5, 6] # Append a list ...

Posted on Sun, 12 Jul 2020 10:52:13 -0400 by jim.davidson

List operations in Python

Python's list manipulation is powerful and convenient (as opposed to Java)Say nothing about simple, regular operations (this is not an introductory tutorial) and introduce a few very specific examplesAdd to # Append to End(append) li = [1, 2, 3, 4, 5] li.append(6) print('li = %s' % li) # Output: li = [1, 2, 3, 4, 5, 6] # Append a list ...

Posted on Sun, 12 Jul 2020 10:50:42 -0400 by kee2ka4

List operations in Python

Python's list manipulation is powerful and convenient (as opposed to Java)Say nothing about simple, regular operations (this is not an introductory tutorial) and introduce a few very specific examplesAdd to # Append to End(append) li = [1, 2, 3, 4, 5] li.append(6) print('li = %s' % li) # Output: li = [1, 2, 3, 4, 5, 6] # Append a list ...

Posted on Sun, 12 Jul 2020 10:52:17 -0400 by BZero

Merge sort algorithm implemented in Java

The following is a merge sort algorithm implemented in Java, referencing Algorithms Unlocked by Thomas H. Cormen I read some blogs from other CSDN bloggers, and I think some details can be optimized, such as avoiding overflow due to too long array length, and using mid = low + (high - low) / 2 for mid For example, instead of creating a (high ...

Posted on Fri, 10 Jul 2020 11:37:04 -0400 by netman182

Installation and Startup of Elasticsearch under UBUNTU

1. Installation 1. Add ppa source sudo add-apt-repository ppa:openjdk-r/ppa 2. Upgrade system apt-get source sudo apt-get update 3. Install jdk8 Elasticsearch was developed in practical java, so JVM is required to run, so we need to install jdk sudo apt-get install oracle-java8-installer 4. Check jdk Execute the follow ...

Posted on Thu, 09 Jul 2020 11:04:38 -0400 by scnjl

[javaFX Learning] (3) Control Manual

move toHttp://blog.csdn.net/qq_37837828/article/details/78732605 update Controls written here may not be all controls, but they should be complete and sufficient, followed by chart classes, 3d model classes, put them behind, too many.javafx is more powerful than you ever thought.It is also convenient to use SceneBuilder to design the interface ...

Posted on Wed, 08 Jul 2020 12:21:25 -0400 by kirtan007