大约有 43,000 项符合查询结果（耗时：0.0632秒） [XML]
Set initial focus in an Android application
... android:focusableInTouchMode="true"
android:layout_width="0px"
android:layout_height="0px" >
<requestFocus />
</LinearLayout>
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Ruby on Rails: How can I revert a migration with rake db:migrate?
...to revert.
eg. if you want to revert a migration with file name 3846656238_create_users.rb
rake db:migrate:down VERSION=3846656238
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Inconsistent Accessibility: Parameter type is less accessible than method
...s trying to do the following: JsonConvert.DeserializeObject<List<Name_Of_My_Model>>(response.Content.ReadAsStringAsync().Result); The "Name_Of_My_Model" class wasn't set to either Public nor Private. Turned out I NEEDED to set the "Name_Of_My_Model" (class) to public to be used in a "pu...
Exporting APK from eclipse (ADT) silently crashes
...o Service Release 2 Build id: 20130225-0426
Gentoo Linux running Java 1.7.0_45-b18.
UPDATE: Few exports after, I still get crashes from time to time, but no very frequently.
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Replacing all non-alphanumeric characters with empty strings
...value.replaceAll("[^A-Za-z0-9]", "");
or
return value.replaceAll("[\\W]|_", "");
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How to use the same C++ code for Android and iOS?
...plementation:
#include <string.h>
#include "Core.h"
const char *CPP_BASE_STRING = "cpp says hello to %s";
const char *concatenateMyStringWithCppString(const char *myString) {
char *concatenatedString = new char[strlen(CPP_BASE_STRING) + strlen(myString)];
sprintf(concatenatedString,...
How to determine the longest increasing subsequence using dynamic programming?
...pe it helps clear up the algorithms!
The Recursive Solution
def recursive_solution(remaining_sequence, bigger_than=None):
"""Finds the longest increasing subsequence of remaining_sequence that is
bigger than bigger_than and returns it. This solution is O(2^n)."""
# Base case: n...
Best way to pretty print a hash
...
require 'pp'
pp my_hash
Use pp if you need a built-in solution and just want reasonable line breaks.
Use awesome_print if you can install a gem. (Depending on your users, you may wish to use the index:false option to turn off displaying arr...
Setting UIButton image results in blue button in iOS 7
...
In iOS7 there is new button type called UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0), // standard system button
Check your .xib file and change button type to Custom
To do this programmatically, add this line to the viewDidLoad:
[UIButton buttonWithType:UIButtonTypeSystem];
...
Convert HashBytes to VarChar
...
I have found the solution else where:
SELECT SUBSTRING(master.dbo.fn_varbintohexstr(HashBytes('MD5', 'HelloWorld')), 3, 32)
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