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How to easily resize/optimize an image size with iOS?
My application is downloading a set of image files from the network, and saving them to the local iPhone disk. Some of those images are pretty big in size (widths larger than 500 pixels, for instance). Since the iPhone doesn't even have a big enough display to show the image in its original size, I'...
how to disable spellcheck Android edittext
... I found that this will remove all line breaks when this is set.
– AndroidDev
Nov 29 '15 at 14:46
i use...
Do you use source control for your database items? [closed]
...s, and I switch all of them to a particular branch (e.g. with a particular set of schema migrations), then I should be able to switch my database to that schema as well. Likewise, it should support merge and rebase operations. This technology is severely lacking. Entity framework has no support f...
Sending data back to the Main Activity in Android
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This provides a pipeline for sending data back to the main Activity using setResult. The setResult method takes an int result value and an Intent that is passed back to the calling Activity.
Intent resultIntent = new Intent();
// TODO Add extras or a data URI to this intent as appropriate.
resultI...
App Inventor 2 代码调试方式：App调试、问题排查方法 · App Inventor 2 中文网
...navbar .nav-link .mdi, .navbar .dropdown-item .mdi { margin-right: 6px; opacity: .7; } 创建 Apps 文档 文档首页 内置块参考文档 组件参考文档 拓展参考文档 概念参考文档 IoT 参考文档 技术和其他指南...
How do I use pagination with Django class based generic ListViews?
...traditional function based views, it is easy to find. I found that just by setting the paginate_by variable is enough to activate the pagination. See in Class-based generic views.
For example, in your views.py:
import models
from django.views.generic import ListView
class CarListView(ListView):
...
Why can tuples contain mutable items?
...the reference implements a hash method, then it's immutable. Like a dic or set would do. Wouldn't this be more of a design decision for what tuples are meant to be?
– garg10may
Oct 26 '17 at 10:41
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How do I add a foreign key to an existing SQLite table?
... now we add the foreign key
pragma writable_schema=1;
update SQLITE_MASTER set sql = replace(sql, 'description TEXT)',
'description TEXT, foreign key (parent_id) references parent(id))'
) where name = 'child' and type = 'table';
--- test the foreign key
pragma foreign_keys=on;
insert into paren...
CSS3 box-sizing: margin-box; Why not?
...
Couldn't you use width: calc(50% - 24px); for your cols? Then set your margins.
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...the particular servlet.
In case of sendError(), if your sole purpose is to set the response status, use setStatus() instead.
Another probable cause is that the servlet writes to the response while a forward() will be called, or has been called in the very same method.
protected void doXxx() {
o...