The basic use of Xamarin.ios camera and photo album

Summary of the contents of this article: 1. Call system camera and photo album Get photos

2. Set the selection or take a picture after the call system cropping function.

3. Set the system camera and album language as Chinese.

The first is to create a uiactionsheet with a photo album with a camera and a Cancel button, and open the camera and photo album in the button click event. Code:

		Bottom Selection window private uiactionsheet _actionsheet = null;
					Public Uiactionsheet Actionsheet {get {if (_actionsheet = null) {_actionsheet = new Uiactionsheet ();
					_actionsheet.addbutton ("album");
					_actionsheet.addbutton ("Camera");

					_actionsheet.addbutton ("cancellation");
					Set Cancel button Position _actionsheet.cancelbuttonindex = _actionsheet.buttoncount-1; _actionsheet.dismissed + = Async (sender, E) => {//Photo album if (e.buttonindex = 0) {//Set Cancel selection Fetch and End Select a method to return a picture _imagepicker.finishedpickingmedia + = this.

							Imagepicker_finishedpickermedia;
							You can crop _imagepicker.allowsediting = True when you select a photo; _imagepicker.canceled = this.

							imagepicker_cancelled;

							Set Image source for album _imagepicker.sourcetype = Uiimagepickercontrollersourcetype.photolibrary; Go to photo gallery await this.
						Presentviewcontrollerasync (This._imagepicker, true); //Camera else if (E.buttonindex = 1) {//Determine if there is hardware support if (Uiimagepickercontroller.issourcetypeavailable (Uiimagepickercontrollersourcetype.camera)) {IsCa

								Mera = true; Set deselect and end selection method to return a picture _imagepicker.finishedpickingmedia + = this.
								Imagepicker_finishedpickermedia;

								_imagepicker.sourcetype = Uiimagepickercontrollersourcetype.camera;
								Set the photo to crop _imagepicker.allowsediting = true; _imagepicker.canceled = this.

								imagepicker_cancelled; Open the camera await this.
							Presentviewcontrollerasync (This._imagepicker, true);
								else {Uialertview Alertview = new Uialertview ();
								Alertview.title = "Sorry, this device does not have camera function";
								Alertview.addbutton ("Know It");
							Alertview.show ();
				}
						}
					};
			return _actionsheet; }
		}

Here is the photo album and Camera callback method:

		<summary>///Albums deselect the method after the call///</summary>///<param name= "sender" >Sender.</param>/ <param name= "E" >E.</param> private async void Imagepicker_cancelled (object sender, EventArgs e) {is
			Camera = false;
		Await This._imagepicker.dismissviewcontrollerasync (true);
		///<summary>///The method invoked after the album selection///</summary>///<param name= "Sender" >Sender.</param> <param name= "E" >E.</param> private async void Imagepicker_finishedpickermedia (object sender, Uiimagepickermediapickedeventargs e) {//Get the selected image Editedimage is the edited photo originalimage is the original artwork uiimage pickerimage = e.Inf

			O[uiimagepickercontroller.editedimage] as UIImage;
				Show the selected image in Image view ...//If it is a camera save the picture to the album if (Iscamera) {pickerimage.savetophotosalbum (s, error) =>
			{if (null!= error) {}});

			} Iscamera = false; Exit Photo Gallery application await _imagepicker.dismissviewcontrollerasync (trUE); }

Such basic photography and photo albums have been realized, but also need to pay attention to the issue of permissions. Add the following permissions in the Info.plist file:

These two are camera and album permissions

Privacy-camera Usage Description String Description: App needs your album rights

Privacy-photo Library Usage Description string Application instructions:

The following is a language that is specified in Chinese

Localization native Development Region string