public static string SaveBitmapGalerry(Bitmap bitmap)
{
CreateDirectoryForPictures();
ContextWrapper cw = new ContextWrapper(Application.Context);
Java.IO.File directory = cw.GetDir("LegionApp", FileCreationMode.Private);
DateTime dt = DateTime.Now;
string filename = (dt.ToString("yyyyMMddHHmmss") + "_img.png");
Java.IO.File myPath = new Java.IO.File(_dir, filename);
var stream = new FileStream(myPath.AbsolutePath, FileMode.Create);
bitmap.Compress(Bitmap.CompressFormat.Png, 50, stream);
stream.Flush();
stream.Close();
bitmap.Recycle();
bitmap = null;
MediaStore.Images.Media.InsertImage(cw.ContentResolver, myPath.AbsolutePath, filename, filename);
return(filename);
}
//ver foto
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
try {
base.OnActivityResult(requestCode, resultCode, data);
Bitmap bitmap = (Bitmap)data.Extras.Get("data");
perfil.SetImageBitmap(bitmap);
ContextWrapper cw = new ContextWrapper(this.ApplicationContext);
var fileName = cw.GetDir("imgDir", FileCreationMode.Private).ToString() + "/profile.png";
ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(this);
ISharedPreferencesEditor editor = prefs.Edit();
editor.PutString("Profile_picture", fileName.ToString());
editor.Apply();
try
{
var os1 = new FileStream(fileName, FileMode.Truncate);
os1.Close();
}
catch (Exception ex)
{
int x = 0;
}
using (var os = new FileStream(fileName, FileMode.OpenOrCreate))
{
bitmap.Compress(Bitmap.CompressFormat.Jpeg, 95, os);
os.Close();
}
}
catch (Exception e)
{
}
}
public async Task <IReadOnlyCollection <string> > GetFilesAsync(string directoryPath)
{
var cw = new ContextWrapper(Application.Context);
var directory = cw.GetDir(directoryPath, FileCreationMode.Private);
var files = await directory.ListFilesAsync();
return(files.Select(f => f.AbsolutePath).ToReadOnlyCollection());
}
//This generates something like = /data/data/yourapp/app_data/imageDir/123_user_image.png
public static string GetUserProfileImagePath(string id)
{
using (var cw = new ContextWrapper(Application.Context))
{
// path to /data/data/yourapp/app_data/imageDir
var directory = cw.GetDir("imageDir", FileCreationMode.Private);
return(Path.Combine(directory.Path, BuildImageFilename(id)));
}
}
public static async Task RemoveFile(string filename)
{
try
{
using (var cw = new ContextWrapper(Application.Context))
{
// path to /data/data/yourapp/app_data/imageDir
var directory = cw.GetDir("imageDir", FileCreationMode.Private);
string fullPath = Path.Combine(directory.Path, filename);
File.Delete(fullPath);
}
}
catch (Exception)
{
//no file
}
await Task.Delay(1000);
}
private string SaveToInternalStorage(Bitmap bitmap)
{
ContextWrapper cw = new ContextWrapper(ApplicationContext);
File directory = cw.GetDir("pictures", FileCreationMode.Private);
File myPath = new File(directory, "picture.png");
try
{
using (var os = new System.IO.FileStream(myPath.AbsolutePath, System.IO.FileMode.Create))
{
bitmap.Compress(Bitmap.CompressFormat.Png, 100, os);
os.Close();
}
}
catch (Exception e)
{
System.Diagnostics.Debug.Write("Deze lijn: " + e.Message);
}
return(directory.AbsolutePath);
}
public static async Task SaveFile(string filename, byte[] fileBytes)
{
try
{
using (var cw = new ContextWrapper(Application.Context))
{
// path to /data/data/yourapp/app_data/imageDir
var directory = cw.GetDir("imageDir", FileCreationMode.Private);
// Create imageDir
// var mypath = new File(directory, $"{filename}.jpg");
string fullPath = Path.Combine(directory.Path, filename);
await File.WriteAllBytesAsync(fullPath, fileBytes);
}
}
catch (Exception)
{
//Could save the file
}
await Task.Delay(1000);
}
protected override void OnCreate (Bundle bundle)
{
base.OnCreate (bundle);
// Set our view from the "main" layout resource
SetContentView (Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
Button button = FindViewById<Button> (Resource.Id.myButton);
button.Click += delegate {
//Get image bitmap from url
Bitmap imageBitmap = GetImageBitmapFromUrl("http://xamarin.com/content/images/pages/platform/sketches-screenshot.png");
ImageView image = FindViewById<ImageView>(Resource.Id.imageView1);
//Save Image to internal storage
ContextWrapper cw = new ContextWrapper(this.ApplicationContext);
File directory = cw.GetDir("imgDir", FileCreationMode.Private);
File myPath = new File(directory, "test.png");
try
{
using (var os = new System.IO.FileStream(myPath.AbsolutePath, System.IO.FileMode.Create))
{
imageBitmap.Compress(Bitmap.CompressFormat.Png, 100, os);
}
}
catch (Exception ex)
{
System.Console.Write(ex.Message);
}
//Load Image from internal storage
Bitmap loadedImage = BitmapFactory.DecodeFile(myPath.AbsoluteFile.AbsolutePath);
image.SetImageBitmap(loadedImage);
};
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
Button button = FindViewById <Button> (Resource.Id.myButton);
button.Click += delegate {
//Get image bitmap from url
Bitmap imageBitmap = GetImageBitmapFromUrl("http://xamarin.com/content/images/pages/platform/sketches-screenshot.png");
ImageView image = FindViewById <ImageView>(Resource.Id.imageView1);
//Save Image to internal storage
ContextWrapper cw = new ContextWrapper(this.ApplicationContext);
File directory = cw.GetDir("imgDir", FileCreationMode.Private);
File myPath = new File(directory, "test.png");
try
{
using (var os = new System.IO.FileStream(myPath.AbsolutePath, System.IO.FileMode.Create))
{
imageBitmap.Compress(Bitmap.CompressFormat.Png, 100, os);
}
}
catch (Exception ex)
{
System.Console.Write(ex.Message);
}
//Load Image from internal storage
Bitmap loadedImage = BitmapFactory.DecodeFile(myPath.AbsoluteFile.AbsolutePath);
image.SetImageBitmap(loadedImage);
};
}
private async Task<Bitmap> GetImageFromUrl(string url)
{
// let's check if the file exists...
ContextWrapper cw = new ContextWrapper (this.ApplicationContext);
File directory = cw.GetDir("imgDir", FileCreationMode.Private);
string[] elements = url.Split (new char[] { '/' });
bool fileExists = false;
string fileName = directory + "/" + elements [elements.Length - 1];
if (System.IO.File.Exists (fileName)) {
fileExists = true;
var imageFile = new Java.IO.File(fileName);
Bitmap bitmap = BitmapFactory.DecodeFile(imageFile.AbsolutePath);
return bitmap;
}
if (!fileExists) {
using (var client = new HttpClient ()) {
var msg = await client.GetAsync (url);
if (msg.IsSuccessStatusCode) {
using (var stream = await msg.Content.ReadAsStreamAsync ()) {
var bitmap = await BitmapFactory.DecodeStreamAsync (stream);
File myPath = new File (directory, elements [elements.Length - 1]);
try {
using (var os = new System.IO.FileStream (myPath.AbsolutePath, System.IO.FileMode.Create)) {
bitmap.Compress (Bitmap.CompressFormat.Png, 100, os);
}
} catch (Exception ex) {
System.Console.Write (ex.Message);
}
return bitmap;
}
}
}
}
return null;
}
public string upload(byte[] image)
{
if (AppGlobalData.context == null) return null;
ContextWrapper cw = new ContextWrapper(AppGlobalData.context);
Java.IO.File directory = cw.GetDir("imgDir", FileCreationMode.WorldReadable);
Java.IO.File myPath = new Java.IO.File(directory, "tmpimgfile");
FileStream fs = new FileStream(myPath.AbsolutePath, FileMode.OpenOrCreate);
//fs.Write(image, 0, image.Length);
string ret = UploadFilesToRemoteUrl("http://joi-testp.chinacloudapp.cn:8090/image/upload/jinmin", fs);
fs.Close();
return ret;
}
protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
// Make it available in the gallery
Intent mediaScanIntent = new Intent(Intent.ActionMediaScannerScanFile);
Android.Net.Uri contentUri = Android.Net.Uri.FromFile(App._file);
mediaScanIntent.SetData(contentUri);
SendBroadcast(mediaScanIntent);
// Display in ImageView. We will resize the bitmap to fit the display.
// Loading the full sized image will consume to much memory
// and cause the application to crash.
int height = Resources.DisplayMetrics.HeightPixels;
int width = _imageView.Height;
App.bitmap = App._file.Path.LoadAndResizeBitmap(width, height);
// Save the bitmap to a file
ContextWrapper cw = new ContextWrapper(this.ApplicationContext);
Java.IO.File directory = cw.GetDir("imgDir", FileCreationMode.Private);
Java.IO.File myPath = new Java.IO.File(directory, this.imgFileName);
try
{
using (var os = new System.IO.FileStream(myPath.AbsolutePath, System.IO.FileMode.Create))
{
Matrix matrix = new Matrix();
matrix.SetRotate(90);
Bitmap scaledBitmap = Bitmap.CreateScaledBitmap(App.bitmap, App.bitmap.Height, App.bitmap.Width/2, true);
Bitmap rotatedBitmap = Bitmap.CreateBitmap(scaledBitmap, 0, 0, scaledBitmap.Width, scaledBitmap.Height, matrix, true);
App.bitmap = rotatedBitmap;
App.bitmap.Compress(Bitmap.CompressFormat.Png, 100, os);
os.Close();
}
}
catch (Exception ex) {
System.Console.Write(ex.Message);
}
// Dispose of the Java side bitmap.
GC.Collect();
try
{
System.IO.FileStream imgFile = new FileStream(myPath.AbsolutePath, FileMode.Open);
int b = imgFile.ReadByte();
imgFile.Close();
}
catch (Java.IO.IOException e)
{
}
if (App.bitmap != null)
{
_imageView.SetImageBitmap(App.bitmap);
App.bitmap = null;
}
}
private void UploadImg(object sender, EventArgs eventArgs)
{
ContextWrapper cw = new ContextWrapper(this.ApplicationContext);
Java.IO.File directory = cw.GetDir("imgDir", FileCreationMode.WorldReadable);
Java.IO.File myPath = new Java.IO.File(directory, this.imgFileName);
System.IO.FileStream imgFile = new FileStream(myPath.AbsolutePath, FileMode.Open);
/*
BinaryReader br = new BinaryReader(imgFile);
long numBytes = new FileInfo(this.imgFileName).Length;
byte[] buff = null;
buff = br.ReadBytes((int) numBytes);
*/
DialogService.ShowLoading("Uploading");
try
{
RESTService.UploadFilesToRemoteUrl("http://joi-testp.chinacloudapp.cn:8090/image/upload/jinmin", imgFile);
}
catch (WebException e)
{
}
DialogService.HideLoading();
}