大约有 9,700 项符合查询结果（耗时：0.0250秒） [XML]
ImageView - have height match width?
...id:layout_width="wrap_content"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1" />
</android.support.constraint.ConstraintLayout>
See here
Deprecated:
According to this post by Android Developers, all you need to do now is to wrap whatever you want ...
How to remove all of the data in a table using Django
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1) For Deleting the table:
python manage.py dbshell
>> DROP TABLE {app_name}_{model_name}
2) For removing all data from table:
python manage.py shell
>> from {app_name}.models import {model_name}
>> {model_name}.objects.all().delete()
...
Prevent multiple instances of a given app in .NET?
In .NET, what's the best way to prevent multiple instances of an app from running at the same time? And if there's no "best" technique, what are some of the caveats to consider with each solution?
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How do I determine the dependencies of a .NET application?
How do I determine the dependencies of a .NET application? Does Dependency Walker work with managed apps? I've downloaded the latest and tried profiling the app, but it just exits without much of an explanation. If it doesn't work with .NET, then is there some other tool that would help me debug a...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...于本文只关心对Excel表格中的数据的读取，主要关注几个_Application、Workbooks、_Workbook、Worksheets、_Worksheet、Range等几个接口。Excel的各类接口的属性、方法可以通过MSDN的Office Development进行查询。
VS2010导入OLE/COM组件的接口的步骤为...
How to unpack and pack pkg file?
...xar -xf ../Foo.pkg
cd foo.pkg
cat Payload | gunzip -dc |cpio -i
# edit Foo.app/*
rm Payload
find ./Foo.app | cpio -o | gzip -c > Payload
mkbom Foo.app Bom # or edit Bom
# edit PackageInfo
rm -rf Foo.app
cd ..
xar -cf ../Foo-new.pkg
I believe you can get mkbom (and lsbom) for most linux distros....
How can I use NSError in my iPhone App?
I am working on catching errors in my app, and I am looking into using NSError . I am slightly confused about how to use it, and how to populate it.
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Live character count for EditText
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You can do character counting from xml itself using TextInputLayout wrapper for EditText introduced in SupportLibrary v23.1
Just wrap your EditText with a TextInputLayout and set CounterEnabled to true and Set a counterMaxLength.
<android.support.design.widget.TextInputLayout
android:i...
Sending email in .NET through Gmail
... have that, it worked fine. I could also have generated a password for my application that I was testing from in my personal acct, but I didn't want to do that.
– Nick DeVore
Jun 17 '13 at 16:18
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Why does Android use Java? [closed]
...va was known in the industry
the speed difference is not an issue for most applications; if it was you should code in low-level language
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