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audio - Get the AudioSessionID of the speakers in android

I'm trying to visualize whichever song or sound is playing on the phone's speakers currently, at first I used 0 as ... sessionID of the speakers? Hope somebody on here can help me....

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swift - How to use CombineLates when when publishers failure types is not equivalent?

I have two functions which return AnyPublisher with different failure type: Never and Error. When using these ... CombineLates when publisher's failure types are not equivalent?...

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c# - How can I create a delegate to read a property of an anonymous type?

I have a method that is called with an instance of an anonymous type. The type is always the same, but the ... its signature is not compatible with that of the delegate type.'...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Car Fueling by greedy algorithm failing

Problem Introduction You are going to travel to another city that is located d miles away from your home city. Your car ... ).split()) print(compute_min_refills(d, m, n, stops))...

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java - Hbase -mapreduce maven Pom Failed to read artifact descriptor for org.apache.hbase:hbase-mapreduce:jar:2.2.0

I tried to create a simple project about MapReduce on HBase with maven. But as soon as I add the dependency in pom.xml it will ... pls!! hadoop-version :3.2.1 hbase-version :2.2.6...

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python - How do I find an element for this HTML code for selenium?

How do I find locator for a search box from this HTML code? I tried all the possible ways but no luck....

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visual studio code - VSC: Unable to start debugging. Progrm path 'c:[...]myprogamm.exe' is missing or invalid

I just installed VSC with the extension c/c++ and mingw32 as the compiler. Running the code and everything works, but ... , I am completely out of ideas. Thanks in advance, David...

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Is it possible to have an Bluetooth SPP connection and BLE GATT connection in an android phone at the same time?

I am making application to connect an android based tablet to BLE GATT based temperature sensor and an Bluetooth SPP ... the temperature with user data using the printing device....

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c++ - I am trying to write this program but it keeps on displaying an a error everything is mentioned below can anyone check

Question: Write a C++ program that stores and siplays following employee data of a company in structures: Employee ID ( ... [Error] invalid types 'float[int]' for array subscript...

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React Native TextInput onSubmitEditing firing with every button press

I'm having trouble with onSubmitEditing firing with every button press of my input keyboard AND when the current page ... something obvious here. Thanks so much for your help....

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html - splitting ajax post response to two divs

I am trying a develop a tutorial for kids, where I have a question and answer. I am trying to accomplish this using two ... is} $.$final; echo json_encode(array($q,$a)); return;...

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why tesseract can't recognize the english words on this image?

I am using tesseract 4.0 to recognize english words,but fail only on this image ,without any words been recognized, any ... works,but why? how can I use tesseract to recognize it?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Select a specific row from ComboBox and add amount in other Column from same row in DataGridView VB.NET

I'm using VB.NET for a small project. I have a DataGridView with some rows and columns. I want to send amounts inside ... add an ammount only to the row I selected in the ComboBox....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - I have implemented counter using useContext and router. My counter value is not coming in other route?

When I increment the counter in localhost/ and then I am viewing the count value at http://localhost:3000/CountView. My ... how can I fix them. Thanks in advance. Happy coding:)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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winapi - Simulate a KeyEvent in C

I wanted to simulate some actions in a game. When I start the programm it should just simulate some Keys getting pressed. It ... ; ip.ki.dwExtraInfo = 0; start(); return 0; }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to retain the sip video call when phone rotate(from portrait to landscape and back to potrait) in android

I have an activity using a fragment to display a video call. Currently, I am only displaying the video in portrait mode ... I can retain a video in a change of screen orientation?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - BoringSSL-GRPC.modulemap not found when building flutter to IOS

I'm using this app with firebase now, and when I try to build in xcode, it throws this error: module map ... ^0.14.4 firebase_messaging: ^7.0.3 flutter_localizations: sdk: flutter...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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json - Is there a way to get columns names of dataframe in pyspark without reading the whole dataset?

I have huges datasets in my HDFS environnement, say 500+ datasets and all of them are around 100M+ rows. I want to ... columns names without wasting my time and memory ? Thanks......

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Picking input record fields with AWK

Let's say we have a shell variable $x containing a space separated list of numbers from 1 to 30: $ x=$(for i in {1..30} ... in this case I'd like to know how to do this with AWK....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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graph - DOT notation rank not placing items on the same horizontal line/plane

This is what I'm going for: https://media-us.amboss.com/media/thumbs/big_58ac9ed16c2bf.jpg And this is what I ... same horizontal line/plane. Here is what it looks like instead:...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - has_many through doesn't work when using same table

I have a model FamilyService. In the model I have these associations: belongs_to :family ... families_families_services_join ON families_families_services_join.id). How to fix?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I retrieve the remaining items in a for loop in Python?

I have a simple for loop iterating over a list of items. At some point, I know it will break. How can ... maybe some native Python function for this or something more elegant?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Failed compile Ionic with Hypertrack SDK (firebase & android-support-v4 dependencies?)

I have a problem when building android with ionic and hypertrack integration. I have following their requirement for ... against firebase. How it should be solved? Thanks...

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I want to display table rows in same class and difference function in PHP

how to display rows in my users table in PHP arr() function can't connect with database class DB { protected $db_server = ' ... >arr(); result -> "connected row is " not count rows...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to visualise the structure of a TensorFlow model

I have a simple model for a project which takes in some weather data and predicts a temperature. The structure is the ... are there and how many neurons are there in each layer...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - SQLite is not available error on pkcs7.Decrypt() of MimeKit

I've encountered an error SQLite is not available while decrypting a mime message after executing pkcs7.Decrypt(). Please see my ... how can I do this it will be a great help....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Will Closures protect my vulnerable data from being destroyed?

I will admit it. I don't understand closures. No matter how many videos I watch, or which explanations I read, they ... routines that are trying to mess-up my perfect Web-Page?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Tensorflow Embedding layer followed by Dense gives shape error

Actually, I'm trying to convert this old Tensorflow 1 code to TF2 using keras: def init_net(batch_size=256, num_feats= ... does not improve the accuracy). What am I missing?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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