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Is a RelativeLayout more expensive than a LinearLayout?
...
In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall it is negligible as long as your view hierarchy ...
Focus Input Box On Load
...load?
You can just add the autofocus attribute to the input.
<input id="myinputbox" type="text" autofocus>
However, this might not be supported in all browsers, so we can use javascript.
window.onload = function() {
var input = document.getElementById("myinputbox").focus();
}
2) How...
Dialog to pick image from gallery or from camera
...allery:
Intent pickPhoto = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(pickPhoto , 1);//one can be replaced with any action code
onActivityResult code:
protected void onActivityResult(int requestCode, int result...
Trigger change() event when setting 's value with val() function
...n(){
if($('#selectField').val() == 'N'){
$('#secondaryInput').hide();
} else {
$('#secondaryInput').show();
}
});
Then I take the value from the database (this is used on a form for both new input and editing existing records), set it as the selected value, and add the piec...
simulate background-size:cover on or
...the functionality of background-size:cover on an html element like <video> or <img> ?
18 Answers
...
how to break the _.each function in underscore.js
...s the native forEach method's behavior, and the native forEach doesn't provide to escape the loop (other than throwing an exception).
However, all hope is not lost! You can use the Array.every method. :)
From that link:
every executes the provided callback function once for each element presen...
Restore file from old commit in git
I have an old commit that I did a few weeks ago. I want to restore only a single file from that commit. What do I do?
4 Ans...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...Proc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
switch (message)//message就是消息号
{
case WM_COMMAND:
...
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;...
select and update database record with a single queryset
...TE. If
the object’s primary key attribute is not set or if the UPDATE didn’t
update anything, Django executes an INSERT.
Ref.: https://docs.djangoproject.com/en/1.9/ref/models/instances/
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WebAPI Multiple Put/Post parameters
...;
Use Request for JQuery Ajax
var customer = {
"Name": "jhon",
"Id": 1,
};
var product = {
"Name": "table",
"CategoryId": 5,
"Count": 100
};
var employee = {
"Name": "Fatih",
"Id": 4,
};
var myData = {};
myData.customerData = customer;
myData.productData = product;
my...