This is how I setup my UIsearchController
private func setupSearchController() {
let searchResultsController = storyboard!.instantiateViewControllerWithIdentifier(DBSearchOptionControllerIdentifier) as! DBSearchOptionController
searchController = UISearchController(searchResultsController: searchResultsController)
let frame = searchController.searchBar.frame
searchController.searchBar.frame = CGRectMake(0, 50, view.bounds.size.width, 44.0)
searchController.searchResultsUpdater = self
view.addSubview(searchController.searchBar)
searchController.searchBar.text = "mmm"
view.bringSubviewToFront(searchController.searchBar)
searchController.searchBar.bringSubviewToFront(view)
}
This is how it looks after I initialise UISearchController:
This is how it looks when I start typing in UISearchBar:
Why my search bar disappear?
This is very interesting, because now when I stop the app, you can see, that it is there, indeed:-) So why it is not visible?
I made some testing and found a way:
UISearchBar definitely must be inserted into wrapper:
#IBOutlet weak var wrapperView: UIView!
...
wrapperView.addSubview(searchController.searchBar)
The result is following:
Related
I have profile photo of users stored in Firebase and I want to know how I can create a marker with the user's profile photo with an orange border.
I tried some code from the internet and it works but the measurements seem to be wrong and I don't know what I'm doing wrong.
The code I used:
fun setMarkerPhoto(user:User, location: Location){
var bitmapFinal : Bitmap?
if(hasProfilePhoto){
/*val options = RequestOptions()
options.centerCrop()*/
Glide.with(this)
.asBitmap()
/*.apply(options)*/
.centerCrop()
.load(user.image)
.into(object : CustomTarget<Bitmap>(){
override fun onResourceReady(resource: Bitmap, transition: com.bumptech.glide.request.transition.Transition<in Bitmap>?) {
bitmapFinal = createUserBitmapFinal(resource)
markerOptions
.position(LatLng(location!!.latitude, location!!.longitude))
.title("Current Location")
.snippet(address)
.icon(BitmapDescriptorFactory.fromBitmap(bitmapFinal))
mCurrentMarker = googleMap.addMarker(markerOptions)
}
override fun onLoadCleared(placeholder: Drawable?) {
TODO("Not yet implemented")
}
})
}else{
markerOptions
.position(LatLng(mLastLocation!!.latitude, mLastLocation!!.longitude))
.title("Current Location")
.snippet(address)
.icon(BitmapDescriptorFactory.fromBitmap(smallMarker))
mCurrentMarker = googleMap.addMarker(markerOptions)
}
}
private fun createUserBitmapFinal(bitmapInicial: Bitmap?): Bitmap? {
var result: Bitmap? = null
try {
result = Bitmap.createBitmap(150,150, Bitmap.Config.ARGB_8888) //change the size of the placeholder
result.eraseColor(Color.TRANSPARENT)
val canvas = Canvas(result)
val drawable: Drawable = resources.getDrawable(R.drawable.ic_pickup)
drawable.setBounds(0, 0, 150,150) //change the size of the placeholder, but you need to maintain the same proportion of the first line
drawable.draw(canvas)
val roundPaint = Paint(Paint.ANTI_ALIAS_FLAG)
val bitmapRect = RectF()
canvas.save()
if (bitmapInicial != null) {
val shader =
BitmapShader(bitmapInicial, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)
val matrix = Matrix()
val scale: Float = 200 / bitmapInicial.width.toFloat() //reduce or augment here change the size of the original bitmap inside the placehoder.
// But you need to adjust the line bitmapRect with the same proportion
matrix.postTranslate(5f, 5f)
matrix.postScale(scale, scale)
roundPaint.shader = shader
shader.setLocalMatrix(matrix)
bitmapRect[10f, 10f, 104f+10f]=104f+10f //change here too to change the size
canvas.drawRoundRect(bitmapRect, 56f, 56f, roundPaint)
}
I didn't really understand how to perfectly fit the bitmap image inside the placeholder. My marker looked like this:
also the image wasn't being center cropped even though I mentioned that it should be in the code, where it says Glide.centerCrop()
Also, I'm using GeoFire to display markers of users in a specified radius of the user and for now I can display a simple marker but I want the marker to have that user's profile photo too! How can I do it?
GeoFire Code:
val geoQuery: GeoQuery = geoFire.queryAtLocation(GeoLocation(location.latitude, location.longitude), 0.5)
geoQuery.addGeoQueryEventListener(object : GeoQueryEventListener {
override fun onKeyEntered(key: String, location: GeoLocation) {
println(String.format("Key %s entered the search area at [%f,%f]", key, location.latitude, location.longitude))
Log.i("key entered","User found around you")
val aroundYou = LatLng(location.latitude, location.longitude)
if (markerList != null) {
for (marker in markerList) {
marker.remove()
}
}
otherMarkerOptions
.position(aroundYou)
.title("Current Location")
//.snippet(address)
.icon(BitmapDescriptorFactory.fromBitmap(smallMarker)) //This is a simple marker but i want it to have the user's profile photo
markerList.add(googleMap.addMarker(otherMarkerOptions))
//}
}
Thank you in advance
Edit:
In the line: val drawable: Drawable = resources.getDrawable(R.drawable.ic_pickup)
It's this png:
I want to insert the profile photo of the user on that drawable file and if the user doesn't have a profile photo then only the drawable photo will be visible.
You get the code to transform the bitmap from my code in another question in StrackOverflow. As I mentioned there, I can´t teste the code because i´m only working with flutter right now.
But looking ate your code I might try this:
Add this function:
fun dp(value: Float): Int {
return if (value == 0f) {
0
} else Math.ceil(resources.displayMetrics.density * value.toDouble()).toInt()
}
in your lines:
result = Bitmap.createBitmap(150,150, Bitmap.Config.ARGB_8888);
drawable.setBounds(0, 0, 150,150);
change to:
result = Bitmap.createBitmap(dp(62f), dp(76f), Bitmap.Config.ARGB_8888);
drawable.setBounds(0, 0, dp(150f), dp(150f)) ;
let me know the results.
I have set an animated image in CollectionView cell but I
didSelectItemAt method call but how can solve animated image this hide
issue please see this video URL.
let data:[UIImage] = images![indexPath.row] as! [UIImage]
cell.ivImage.animationImages = data
cell.ivImage.animationDuration = 1.0
cell.ivImage.startAnimating()
stickerCV.allowsSelection = false
Collection Cell
let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap(_:)))
tap.accessibilityLabel = "\(indexPath.row),\(indexPath.section)"
tap.numberOfTapsRequired = 1
cell.ivSitcker.isUserInteractionEnabled = true
cell.ivSitcker.addGestureRecognizer(tap)
Tap Gesture
#objc func handleTap(_ sender: UITapGestureRecognizer) {
let data = sender.accessibilityLabel?.components(separatedBy: ",")
let index = Int(data![0])
let section = Int(data![1])
selectedIndex = index!
let sectionData = AppData.sharedInstance.arrOfStickers[selectedStickerIndex]
self.strSelectedSticker = sectionData[index!]
self.createSticker(image: self.strSelectedSticker[0])
self.selectedIndex = index!
self.stickerCV.reloadData()
}
in Swift1 i could call this:
func selectParagraphAlignment(newAlignment:NSTextAlignment) {
var selectedRange = textView.selectedRange
var newParagraphStyle = NSMutableParagraphStyle()
newParagraphStyle.alignment = newAlignment
var dict = [NSParagraphStyleAttributeName: newParagraphStyle]
textView.textStorage.beginEditing()
textView.textStorage.setAttributes(dict, range: selectedRange)
textView.textStorage.endEditing()
}
In Swift2 i cant use a Distionary in textView.textStorage.setAttributes(). I cant see, what i must use now?
Can u show me the new syntax?
TIA
I have been trying to figure out how to pan/zoom using onMouseDrag, and onMouseDown in paperjs.
The only reference I have seen has been in coffescript, and does not use the paperjs tools.
This took me longer than it should have to figure out.
var toolZoomIn = new paper.Tool();
toolZoomIn.onMouseDrag = function (event) {
var a = event.downPoint.subtract(event.point);
a = a.add(paper.view.center);
paper.view.center = a;
}
you can simplify Sam P's method some more:
var toolPan = new paper.Tool();
toolPan.onMouseDrag = function (event) {
var offset = event.downPoint - event.point;
paper.view.center = paper.view.center + offset;
};
the event object already has a variable with the start point called downPoint.
i have put together a quick sketch to test this.
Unfortunately you can't rely on event.downPoint to get the previous point while you're changing the view transform. You have to save it yourself in view coordinates (as pointed out here by Jürg Lehni, developer of Paper.js).
Here's a version that works (also in this sketch):
let oldPointViewCoords;
function onMouseDown(e) {
oldPointViewCoords = view.projectToView(e.point);
}
function onMouseDrag(e) {
const delta = e.point.subtract(view.viewToProject(oldPointViewCoords));
oldPointViewCoords = view.projectToView(e.point);
view.translate(delta);
}
view.translate(view.center);
new Path.Circle({radius: 100, fillColor: 'red'});
I am trying to pass contextInfo of typeUnsafeMutablePointer<Void> to UISaveVideoAtPathToSavedPhotosAlbum and use it in the callback function. For some reason I am unable to access contextInfo as a string using UnsafePointer<String>(x).memory when I am in the callback function.
I am pretty sure it is something simple I am missing but have spent way to many hours trying to figure this out.
Below is some code that I have tried.
The following code works.
var testStr:String = "hello"
takesAMutableVoidPointer(&testStr)
func takesAMutableVoidPointer(x: UnsafeMutablePointer<Void>){
var pStr:String = UnsafePointer<String>(x).memory
println("x = \(x)")
println("pStr = \(pStr)")
}
However the following code does not work.
var testStr:String = "hello"
if UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(filePath){ //the filePath is compatible
println("Compatible")
//UISaveVideoAtPathToSavedPhotosAlbum(filePath, self, nil, nil)
UISaveVideoAtPathToSavedPhotosAlbum(filePath, self, "video:didFinishSavingWithError:contextInfo:", &testStr)
}
else{
println("Not Compatible")
}
func video(video: NSString, didFinishSavingWithError error:NSError, contextInfo:UnsafeMutablePointer<Void>){
var pStr:String = UnsafePointer<String>(contextInfo).memory
println("contextInfo = \(contextInfo)")
println("pStr = \(pStr)")
}
Once I get to the following line:
var pStr:String = UnsafePointer<String>(contextInfo).memory
I keep getting the following error:
Thread 1: EXC_BAD_ACCESS(code=1, address=0x0)
Any help with this would be greatly appreciated.
Thanks.
Update
Rintaro commented that testStr needs to be top level but the following code works.
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
var testStr:String = "hello"
takesAMutableVoidPointer(&testStr)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func takesAMutableVoidPointer(x: UnsafeMutablePointer<Void>){
var answer = UnsafePointer<String>(x).memory
println("x = \(x)")
println("answer = \(answer)")
}
}
I am trying not to use global variables unless I have to. I may have to but since I am able to execute the above code, it seems as though I do not need to use a global variable.
As discussed in OP comments, testStr has already been freed.
Is there any way to force the retaining of a variable that has been created in a function? Then release it later?
It's not impossible, but I don't know this is the best way to do that.
Anyway, try this with Playground or OS X "Command Line Tool" template:
import Foundation
func foo() {
var str:NSString = "Hello World"
let ptr = UnsafePointer<Void>(Unmanaged<NSString>.passRetained(str).toOpaque())
bar(ptr)
}
func bar(v:UnsafePointer<Void>) {
let at = dispatch_time(
DISPATCH_TIME_NOW,
Int64(2.0 * Double(NSEC_PER_SEC))
)
dispatch_after(at, dispatch_get_main_queue()) {
baz(v)
}
}
func baz(v:UnsafePointer<Void>) {
println("notified")
let str = Unmanaged<NSString>.fromOpaque(COpaquePointer(v)).takeRetainedValue()
println("info: \(str)")
}
foo()
println("started")
dispatch_main()
Unmanaged<NSString>.passRetained(str) increments the retain count.
Unmanaged<NSString>.fromOpaque(...).takeRetainedValue() decrements it, and extract the object.
I think, using pure Swift String is impossible. because String is struct and is allocated in stack memory. Maybe the buffer of it is allocated in heap, but we cannot access it directly.