大约有 8,422 项符合查询结果（耗时：0.0286秒） [XML]
Get class name of django model
... work on older...), as you may also have the same model name from multiple apps.
Assuming Book is in my_app:
print(Book._meta.object_name)
# Book
print(Book._meta.model_name)
# book
print(Book._meta.app_label)
# my_app
...
Cannot delete directory with Directory.Delete(path, true)
...tself. I know this goes against the second parameter but it's a much safer approach. In addition, you will probably want to remove READ-ONLY access attributes from the files right before you delete them. Otherwise that will raise an exception.
Just slap this code into your project.
public static v...
Remove/hide a preference from the screen
... i need completely hide one of the preferences from the screen based on my app state. There is a setEnabled method, but it's not exactly what i want. I want to remove that preference from the screen completely.
Is it possible ?
...
Find location of a removable SD card
...would scan additional SD cards and add them to the media provider and give apps read-only access to their files (which is also still supported in the platform today).
Android 4.4 is the first release of the platform that has actually allowed applications to use SD cards for storage. Any access to t...
What is the difference between Tomcat, JBoss and Glassfish?
...er and Java servlet container. JBoss and GlassFish are full-blown Java EE application servers, including an EJB container and all the other features of that stack. On the other hand, Tomcat has a lighter memory footprint (~60-70 MB), while those Java EE servers weigh in at hundreds of megs. Tomca...
Dialog to pick image from gallery or from camera
...g a photo. Just show a dialog with two options and upon selection, use the appropriate code.
To take picture from camera:
Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePicture, 0);//zero can be replaced with any action code (called requestCode)
To p...
Detect whether there is an Internet connection available on Android [duplicate]
...signal, captive portals, content filters and the like can all prevent your app from reaching a server. For instance you can't tell for sure if your app can reach Twitter until you receive a valid response from the Twitter service.
...
android layout: This tag and its children can be replaced by one and a compound drawable
...View with compound drawable(s). There are NOT many parameters which can be applied to compound drawable using native API and this TextViewRichDrawable library, but if you can manage one TextView instead of using LinearLayout you should definitely use it.
The list of attributes and parameters which ...
Android Eclipse - Could not find *.apk
...
Please follow these steps; this might help you out:
Right-click your app project and go to Properties
Select Android from left-hand side list
Uncheck the "Is Library" checkbox
If your app project relies on library projects which are in your workspace, those of course need to have the "Is Lib...
Font size of TextView in Android application changes on changing font size from native settings
I want to specify my own text size in my application, but I am having a problem doing this.
14 Answers
...