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android - Use declare styleable to set custom component input type

I have a CompositeComponent (EditText+ImageButton) When clicking on button the edittext content will be cleared. It ... /use-declare-styleable-to-set-custom-component-input-type...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Google firebase check if child exists

In my app, I need to check if a given element of my database on firebase has a child with a given ... ://stackoverflow.com/questions/37397205/google-firebase-check-if-child-exists...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can I await inside future-like object's __await__?

PEP 0492 adds new __await__ magic method. Object that implements this method becomes future-like object and can be ... /33409888/how-can-i-await-inside-future-like-objects-await...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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527 views

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sorting - pandas groupby sort descending order

pandas groupby will by default sort. But I'd like to change the sort order. How can I do this? ... https://stackoverflow.com/questions/27018622/pandas-groupby-sort-descending-order...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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224 views

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cocoa touch - iOS 7 custom back button

I want to use custom back button. in iOS 6 everything is perfect but iOS 7 is strange. [[UIBarButtonItem ... https://stackoverflow.com/questions/18824887/ios-7-custom-back-button...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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87 views

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How to return 5 topmost values from vector in R?

I have a vector and I'm able to return highest and lowest value, but how to return 5 topmost values? Is there ... /questions/3692563/how-to-return-5-topmost-values-from-vector-in-r...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Travis CI with Clang 3.4 and C++11

Is it possible to get Travis CI working with Clang that is capable of C++11? (I want Clang, not GCC, I ... //stackoverflow.com/questions/22111549/travis-ci-with-clang-3-4-and-c11...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Running gcc's steps manually, compiling, assembling, linking

If you have a simple C program, like int main(void) {return 0;} It can be compiled with ... .com/questions/8527743/running-gccs-steps-manually-compiling-assembling-linking...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to find out the max value for Int in Swift

I want to understand how to access the "struct" type of Int. When I cmd-clicked Int it took me to this class, ... questions/24030606/how-to-find-out-the-max-value-for-int-in-swift...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How do I load a text file line by line into an array with Swift?

How do I load a text file line by line into an array with swift? question from:https://stackoverflow.com/questions/ ... load-a-text-file-line-by-line-into-an-array-with-swift...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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221 views

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css selectors - Apply CSS to a group of css classes containing col- substring

I wasn't sure of the best way to word this and that's probably why I have struggled to research it even ... 22509402/apply-css-to-a-group-of-css-classes-containing-col-substring...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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429 views

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Life cycle of Android Activity after pressing Back button

I am little confused between the life cycle of two activities. Suppose I have Activity A and Activity B. B ... /22011751/life-cycle-of-android-activity-after-pressing-back-button...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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101 views

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java - How to workaround this JDK limitation?

I'm looking for a class from the Java Collection Framework that would not allow null elements. Do you ... stackoverflow.com/questions/6997142/how-to-workaround-this-jdk-limitation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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276 views

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cocoa touch - How to go back one view in UINavigationController?

Is there a method to go back one view in the stack on a UINavigationController? Or to a view with a ... .com/questions/3293155/how-to-go-back-one-view-in-uinavigationcontroller...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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649 views

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process - Correct way (in .NET) to switch the focus to another application

This is what I have so far: Dim bProcess = Process.GetProcessesByName("By").FirstOrDefault If bProcess IsNot Nothing Then ... -way-in-net-to-switch-the-focus-to-another-application...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to create a collapsing tree table in html/css/js?

I have some data to display that is both tabular and hierarchical. I'd like to let the user be able to expand and ... /5636375/how-to-create-a-collapsing-tree-table-in-html-css-js...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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238 views

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iphone - NSString stringWithFormat adding a percent

(This question already has answers here): question from:https://stackoverflow.com/questions/4585904/nsstring-stringwithformat-adding-a-percent...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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151 views

1 answer

java - How do you have the code pause for a couple of seconds in android?

Basically I need a pause (based on just a few seconds) to be put into one action so that the user can see what ... do-you-have-the-code-pause-for-a-couple-of-seconds-in-android...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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183 views

1 answer

adb.exe not found after installing Android Studio

I installed Android Studio 1.2.1.1 and also created virtual device. I am trying to install one app (APK ... com/questions/30812493/adb-exe-not-found-after-installing-android-studio...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

1 answer

iterator - Iterating over and deleting from Hashtable in Java

I have a Hashtable in Java and want to iterate over all the values in the table and delete a particular ... com/questions/2351331/iterating-over-and-deleting-from-hashtable-in-java...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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710 views

1 answer

process - Correct way (in .NET) to switch the focus to another application

This is what I have so far: Dim bProcess = Process.GetProcessesByName("By").FirstOrDefault If bProcess IsNot Nothing Then ... -way-in-net-to-switch-the-focus-to-another-application...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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506 views

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boolean - Is there any legitimate use of list[True], list[False] in Python?

Since True and False are instances of int, the following is valid in Python: >>> l = [0, 1, 2] > ... /questions/38117555/is-there-any-legitimate-use-of-listtrue-listfalse-in-python...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - "An error occurred while automatically activating bundle com.android.ide.eclipse.adt"

When going here: right-click on my project > Properties > Android the below error happens. This error ... -occurred-while-automatically-activating-bundle-com-android-ide-eclipse...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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215 views

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testing - How do you measure the quality of your unit tests?

If you (or your organization) aspires to thoroughly unit test your code, how do you measure the success or quality of ... /262727/how-do-you-measure-the-quality-of-your-unit-tests...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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126 views

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Adding string array (string[]) to List<string> c#

When the string[], _lineParts is added to the List, all I see in the List is "System.String[]" What ... .com/questions/12882778/adding-string-array-string-to-liststring-c-sharp...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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176 views

1 answer

java - Show spinning wheel dialog while loading data on Android

I want to show a spinning wheel dialog while my app loads some data: The spinning wheel dialog should show ... /6159702/show-spinning-wheel-dialog-while-loading-data-on-android...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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184 views

1 answer

php - file_put_contents, file_append and line breaks

I'm writing a PHP script that adds numbers into a text file. I want to have one number on every line, ... .com/questions/3536564/file-put-contents-file-append-and-line-breaks...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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226 views

1 answer

AngularJS $timeout function not executing in my Jasmine specs

I'm trying to test my AngularJS controller with Jasmine, using Karma. But a $timeout which works well in ... /17350492/angularjs-timeout-function-not-executing-in-my-jasmine-specs...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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