1. The first problem encountered is Caused by: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@73e5526 — permission denied for window type 2003 java.lang.RuntimeException: Unable to create service com.example.liuw.camera2demo.service.ScreenRecordService: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRootImpl$W@73e5526 — permission denied for window type 2003 After continuous investigation, it was found that it was a permissions issue. Project addition <service […]
Tag: floating
Java uses POI to read pictures in Excel tables (including embedded cell pictures, floating pictures, xls-2003, xlsx-2007)
1. The test files are as follows, xls-2003, xlsx-2007 2. Read floating pictures in the table 2.1 Before reading the table, you need to understand that the following is a method for reading image files in the entire workbook. However, the actual reading of image data often needs to correspond to other data. For example, […]
verilog implements IEEE754 half-precision floating point number addition and subtraction operations
1. IEEE754 protocol half-precision floating point number format and conversion Format: The binary half-precision floating point number has a total of 16 bits, and the index is 0-15. The 15th bit is the sign bit, 0 represents positive and 1 represents negative, 14-10 bits are the exponent code, and 9-0 bits are the mantissa bit. […]
Storage of integers and floating point numbers in memory
1, Storage of integers in memory There are three ways to represent integers in binary: original code, complement code, and complement code. For integers, what is stored in memory is the complement. 2. Big and small endian byte order and byte order judgment 2.1, what is big and small endian In fact, when data of […]
[C Language] Storage and reading of floating point numbers in memory – underlying analysis
write in front Hello everyone, I am gugugu. I hope it will be helpful to you after reading it. Please correct me if I have any shortcomings! Learn and communicate together This article was first published by gugugu on CSDN If you need to reprint it, please notify me? Personal homepage: gugugu-high-quality blog Welcome everyone […]
Android floating window frame
Official website Project address: Github Blog address: Floating window demand terminator This framework is intended to solve some floating window needs. If it is an ordinary Toast package, it is recommended to use Toaster Integration steps If your project Gradle configuration is below 7.0, you need to add it to the build.gradle file allprojects { […]
Vue implements floating draggable buttons on the mobile side
need: The button is displayed floating on the side of the page; Click the button to expand multiple shortcut buttons from bottom to top. Long press the button to allow dragging to change the button position, and the button is in a non-expanded state; When the button movement is completed and your finger is released, […]
EXCEL image processing tool class, supports the processing of embedded images and floating images in WPS
EXCEL picture processing tool class, supports the processing of embedded pictures and floating pictures in WPS. This tool class uses easyExcel to obtain the picture in excel and return the position of the corresponding picture. EXCEL image processing tool class, supports the processing of embedded images and floating images in WPS import cn.hutool.core.collection.CollectionUtil; import cn.hutool.core.util.CharsetUtil; […]
Why is it necessary to study floating-point addition operations for FPGA implementation methods?
Follow and star the public account, and exciting content will be delivered every day Source: Internet material Click the blue words above to follow us Modern signal processing techniques often require large amounts of high-speed floating point operations. Since the operation of the floating-point number system is relatively complex and requires special hardware to complete […]
Android development floating window development
Foreword This blog explains the development of floating windows. The development of floating windows requires many permissions. First, you need to allow pop-up floating windows in Settings-Application-Permissions. Use service or application to start the floating window What needs attention in the floating window part is that the Context of Service andApplication does not have a […]