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【解决】App Inventor 2 如何下载/保存网络图片？ - App Inventor 2 中文网...
首先，需要使用“Web客户端”组件，需要和网络url进行数据交互的场景就要考虑使用它。设置好网络图片的url，然后执行Get方法即可，代码如下：其中，特别要注意的是保存相应信息属性设置为真，这样才能将目标网络图片保存...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
I'm getting user reports from my app in the market, delivering the following exception:
34 Answers
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Android NDK C++ JNI (no implementation found for native…)
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There is a cpp example under apps in ndk:
https://github.com/android/ndk-samples/blob/master/hello-gl2/app/src/main/cpp/gl_code.cpp
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Where to place AutoMapper.CreateMaps?
I'm using AutoMapper in an ASP.NET MVC application. I was told that I should move the AutoMapper.CreateMap elsewhere as they have a lot of overhead. I'm not too sure how to design my application to put these calls in just 1 place.
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“Warning: iPhone apps should include an armv6 architecture” even with build config set
...k the highlighted row named '$(ARCHS_STANDARD_32_BIT)' in the popover that appears, and replace it by typing 'armv6'. Then add a new row with the plus button in the bottom left of the popover, and type 'armv7', then click Done:
Update: you should add armv7s to target the iPhone 5 as well. (And d...
How to handle static content in Spring MVC?
I am developing a webapp using Spring MVC 3 and have the DispatcherServlet catching all requests to '/' like so (web.xml):
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Handling an empty UITableView. Print a friendly message
...it is legal to be empty. So instead of showing the
background image of the app, I would prefer to print a friendly message in the screen, such as:
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iPhone Keyboard Covers UITextField
I have an app where, in Interface Builder , I set up a UIView that has a text field near the bottom of the view. When I run the app and try to enter text into that field, the keyboard slides up overtop of the field so I can't see what I'm typing until I hide the keyboard again.
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Basic HTTP authentication with Node and Express 4
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Simple Basic Auth with vanilla JavaScript (ES6)
app.use((req, res, next) => {
// -----------------------------------------------------------------------
// authentication middleware
const auth = {login: 'yourlogin', password: 'yourpassword'} // change this
//...
Calculating Distance between two Latitude and Longitude GeoCoordinates
I'm calculating the distance between two GeoCoordinates. I'm testing my app against 3-4 other apps. When I'm calculating distance, I tend to get an average of 3.3 miles for my calculation whereas other apps are getting 3.5 miles. It's a big difference for the calculation I'm trying to perform. Are t...