C# ImageView.SetImageDrawable方法代码示例

 static void DrawCode(string code, ImageView barcode)
 {
     var writer = new BarcodeWriter
     {
         Format = BarcodeFormat.CODE_39,
         Options = new EncodingOptions
         {
             Height = 200,
             Width = 600
         }
     };
     var bitmap = writer.Write(code);
     Drawable img = new BitmapDrawable(bitmap);
     barcode.SetImageDrawable(img);
 }

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            SetContentView(Resource.Layout.ExhibitorDetailsScreen);

            var id = Intent.GetIntExtra("UserGroupID", -1);

            if (id >= 0) {
                usergroup = BL.Managers.UserGroupManager.GetUserGroup(id);
                if (usergroup != null) {
                    FindViewById<TextView>(Resource.Id.NameTextView).Text = usergroup.Name;
                    //FindViewById<TextView>(Resource.Id.CountryTextView).Text = usergroup.FormattedCityCountry;
                    //FindViewById<TextView>(Resource.Id.LocationTextView).Text = usergroup.Locations;
                    if (!String.IsNullOrEmpty(usergroup.Overview))
                        FindViewById<TextView>(Resource.Id.DescriptionTextView).Text = usergroup.Overview;
                    else
                        FindViewById<TextView>(Resource.Id.DescriptionTextView).Text = "No background information available.";
                    // now do the image
                    imageview = FindViewById<ImageView>(Resource.Id.ExhibitorImageView);
                    var uri = new Uri(usergroup.ImageUrl);
                    Console.WriteLine("usergroup.ImageUrl " + usergroup.ImageUrl);
                    try {
                        var drawable = MonoTouch.Dialog.Utilities.ImageLoader.DefaultRequestImage(uri, this);
                        if (drawable != null)
                            imageview.SetImageDrawable(drawable);
                    } catch (Exception ex) {
                        Console.WriteLine(ex.ToString());
                    }
                } else {   // shouldn't happen...
                    FindViewById<TextView>(Resource.Id.NameTextView).Text = "UserGroup not found: " + id;
                }
            }
        }

        public IndicatorLayout(Context context, Mode mode)

            : base(context)
        {
            //super(context);
            mArrowImageView = new ImageView(context);

            Drawable arrowD = Resources.GetDrawable(Resource.Drawable.indicator_arrow);
            mArrowImageView.SetImageDrawable(arrowD);

            int padding = Resources.GetDimensionPixelSize(Resource.Dimension.indicator_internal_padding);
            mArrowImageView.SetPadding(padding, padding, padding, padding);
            AddView(mArrowImageView);

            int inAnimResId, outAnimResId;
            switch (mode)
            {
                case Mode.PULL_FROM_END:
                    inAnimResId = Resource.Animation.slide_in_from_bottom;
                    outAnimResId = Resource.Animation.slide_out_to_bottom;
                    SetBackgroundResource(Resource.Drawable.indicator_bg_bottom);

                    // Rotate Arrow so it's pointing the correct way
                    mArrowImageView.SetScaleType(Android.Widget.ImageView.ScaleType.Matrix);
                    Matrix matrix = new Matrix();

                    matrix.SetRotate(180f, arrowD.IntrinsicWidth / 2f, arrowD.IntrinsicHeight / 2f);
                    mArrowImageView.ImageMatrix = matrix;
                    break;
                default:
                case Mode.PULL_FROM_START:
                    inAnimResId = Resource.Animation.slide_in_from_top;
                    outAnimResId = Resource.Animation.slide_out_to_top;
                    SetBackgroundResource(Resource.Drawable.indicator_bg_top);
                    break;
            }

            mInAnim = AnimationUtils.LoadAnimation(context, inAnimResId);
            mInAnim.SetAnimationListener(this);

            mOutAnim = AnimationUtils.LoadAnimation(context, outAnimResId);
            mOutAnim.SetAnimationListener(this);

            IInterpolator interpolator = new LinearInterpolator();

            //mRotateAnimation = new RotateAnimation(0, -180, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,0.5f);
            mRotateAnimation = new RotateAnimation(0, -180, Dimension.RelativeToSelf, 0.5f, Dimension.RelativeToSelf, 0.5f);


            mRotateAnimation.Interpolator = interpolator;
            mRotateAnimation.Duration = DEFAULT_ROTATION_ANIMATION_DURATION;
            mRotateAnimation.FillAfter = true;

            mResetRotateAnimation = new RotateAnimation(-180, 0, Dimension.RelativeToSelf, 0.5f,
                    Dimension.RelativeToSelf, 0.5f);
            mResetRotateAnimation.Interpolator = interpolator;
            mResetRotateAnimation.Duration = DEFAULT_ROTATION_ANIMATION_DURATION;
            mResetRotateAnimation.FillAfter = true;

        }

		public override View OnCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
		{
			if (container == null) {
				// Currently in a layout without a container, so no reason to create our view.
				return null;
			}

			var view = inflater.Inflate(Resource.Layout.speaker_screen, container, false);

			var speaker = EvolveData.SpeakerData [ShownSpeakerIndex];

			headshotImageView = view.FindViewById<ImageView> (Resource.Id.headshotImageView);
			var headshot = GetHeadShot (speaker.HeadshotUrl);
			headshotImageView.SetImageDrawable (headshot);

			speakerNameTextView = view.FindViewById<TextView> (Resource.Id.speakerNameTextView);
			speakerNameTextView.Text = speaker.Name;

			companyNameTextView = view.FindViewById<TextView> (Resource.Id.companyNameTextView);
			companyNameTextView.Text = speaker.Company;

			twitterHandleView = view.FindViewById<TextView> (Resource.Id.twitterTextView);
			twitterHandleView.Text = "@" + speaker.TwitterHandle;

			return view;
		}

		void SetSolvedStateForQuiz (ImageView solvedState, int position)
		{
			var context = solvedState.Context;
			Drawable tintedImage;
			tintedImage = (category.IsSolvedCorrectly ((Quiz)GetItem (position))) ? GetSuccessIcon (context) : GetFailedIcon (context);

			solvedState.SetImageDrawable (tintedImage);
		}

 public static void Download(string url, ImageView imageView, Resources resources, Bitmap placeholder)
 {
     if(CancelPotentialDownload(url, imageView))
     {
         var task = new DownloadImageTask(imageView);
         var drawable = new AsyncDrawable(resources, placeholder, task);
         imageView.SetImageDrawable(drawable);
         task.Execute(url);
     }
 }

        public static void CleanImageView(ImageView imageView)
        {
            if (imageView == null || imageView.Drawable == null || imageView.Drawable.GetType() != typeof(BitmapDrawable))
                return;

            // Clean up the view's image for the sake of memory
            BitmapDrawable b = (BitmapDrawable)imageView.Drawable;
            b.Bitmap.Recycle();
            imageView.SetImageDrawable(null);
        }

		void SetCategoryIcon (Category category, ImageView icon)
		{
			var categoryImageResource = resources.GetIdentifier (IconCategory + category.Id, Drawable, packageName);
			var solved = category.Solved;
			if (solved) {
				var solvedIcon = LoadSolvedIcon (category, categoryImageResource);
				icon.SetImageDrawable (solvedIcon);
			} else {
				icon.SetImageResource (categoryImageResource);
			}
		}

		internal async void LoadMap (GeoPoint point, FavoriteView view, ImageView mapView, long version)
		{
			var url = MakeMapUrl (point);
			var bmp = await LoadInternal (url, MapCache);
			if (bmp != null && view.VersionNumber == version) {
				mapView.AlphaAnimate (0, duration: 150, endAction: () => {
					mapView.SetImageDrawable (new RoundCornerDrawable (bmp));
					mapView.AlphaAnimate (1, duration: 250);
				});
			}
		}

		internal async void LoadStreetView (LatLng location, HubwayMapFragment frag, long stationID, ProgressBar spinner, ImageView img)
		{
			var url = MakeStreetViewUrl (img, location);
			var bmp = await LoadInternal (url, StreetViewCache);
			if (bmp != null && frag.CurrentShownId == stationID) {
				img.SetImageDrawable (new RoundCornerDrawable (bmp, cornerRadius: 3));
				img.Visibility = Android.Views.ViewStates.Visible;
				spinner.AlphaAnimate (0, duration: 250);
				img.AlphaAnimate (1, duration: 250);
			}
		}

        public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            mImageView = new ImageView(Activity);
            string path = Arguments.GetString(EXTRA_IMAGE_PATH);
            float rotation = Arguments.GetFloat(EXTRA_IMAGE_ROTATION);
            BitmapDrawable image = PictureUtils.GetScaledDrawable(Activity, path);

            mImageView.SetImageDrawable(image);
            mImageView.Rotation = rotation;

            return mImageView;
        }

		protected virtual void SetImage(ImageView imageView, int id)
		{
			var context = imageView.Context;
			Drawable drawable;
			if(Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop)
				drawable = context?.Resources?.GetDrawable(id, context.Theme);
			else
				drawable = context?.Resources?.GetDrawable(id);

			if(drawable != null)
				imageView.SetImageDrawable(drawable);
		}

		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			ImageView imageView = new ImageView (this);
			// Set the background color to white
			imageView.SetBackgroundColor (Android.Graphics.Color.White);
			// Parse the SVG file from the resource
			SVG svg = SVGParser.GetSVGFromAsset (Assets, "svg/gradients.svg");
			// Get a drawable from the parsed SVG and set it as the drawable for the ImageView
			imageView.SetImageDrawable (svg.CreatePictureDrawable ());
			// Set the ImageView as the content view for the Activity
			SetContentView (imageView);
		}

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            SetContentView(Resource.Layout.TweetDetailsScreen);

            var id = Intent.GetIntExtra("TweetID", -1);

            if (id >= 0) {
                tweet = BL.Managers.TwitterFeedManager.GetTweet(id);
                if (tweet != null) {
                    FindViewById<TextView>(Resource.Id.NameTextView).Text = tweet.RealName;
                    FindViewById<TextView>(Resource.Id.NameTextView).Click += (object sender, EventArgs e) => {
                        Intent browserIntent = new Intent(Intent.ActionView, global::Android.Net.Uri.Parse(tweet.AuthorUrl)); 
                        StartActivity(browserIntent);
                    };
                    FindViewById<TextView>(Resource.Id.HandleTextView).Text = tweet.FormattedAuthor;
                    FindViewById<TextView>(Resource.Id.HandleTextView).Click +=(object sender, EventArgs e) => {
                        Intent browserIntent = new Intent(Intent.ActionView, global::Android.Net.Uri.Parse(tweet.AuthorUrl)); 
                        StartActivity(browserIntent); 
                    };
                    FindViewById<TextView>(Resource.Id.TimeTextView).Text = tweet.FormattedTime;

                    // ugh - LoadData() method has problems when html contains a %
                    // http://code.google.com/p/android/issues/detail?id=1733
                    // http://code.google.com/p/android/issues/detail?id=4401
                    FindViewById<WebView>(Resource.Id.ContentWebView).LoadDataWithBaseURL(null,
                        "<html><body>" + tweet.Content + "</body></html>", @"text/html", "utf-8", null);
                    imageview = FindViewById<ImageView> (Resource.Id.TwitterImageView);

                    var uri = new Uri(tweet.ImageUrl);
                    Console.WriteLine("speaker.ImageUrl " + tweet.ImageUrl);
                    try {
                        var drawable = MonoTouch.Dialog.Utilities.ImageLoader.DefaultRequestImage(uri, this);
                        if (drawable != null)
                            imageview.SetImageDrawable(drawable);
                    } catch (Exception ex) {
                        Log.Debug("TWITTER", ex.ToString());
                    }
                } else {   // shouldn't happen...
                    FindViewById<TextView>(Resource.Id.TitleTextView).Text = "Tweet not found: " + id;
                }
            }
        }

		public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
		{
			View view = inflater.Inflate(Resource.Layout.HomeActivity, container, false);

			toolbarLayout = view.FindViewById(Resource.Id.toolbarLayout);
			((TextView)toolbarLayout.FindViewById(Resource.Id.toolbar_titleCenter)).Text = "Notifications";
			toolbarImageFarLeft = (ImageView)toolbarLayout.FindViewById(Resource.Id.toolbar_imageFarLeft);
			toolbarImageFarLeft.Visibility = ViewStates.Visible;
			Drawable trash = Context.Resources.GetDrawable(Resource.Drawable.delete);
			trash.SetColorFilter(Resources.GetColor(Resource.Color.tenBlue), PorterDuff.Mode.SrcAtop);
			toolbarImageFarLeft.SetImageDrawable(trash);
			toolbarImageFarLeft.Click += (sender, e) =>
			{
				Android.Support.V7.App.AlertDialog.Builder alert = new Android.Support.V7.App.AlertDialog.Builder(Context);
				alert.SetTitle(Strings.clear_notificaitons);
				alert.SetMessage(Strings.clear_notificaions_confirm);
				alert.SetPositiveButton(Strings.yes, (senderAlert, args) =>
				{
					DeleteAllNotifications();
				});
				alert.SetNeutralButton(Strings.no, (senderAlert, args) => { });
				alert.Show();
			};


			NotificationFragment = new NotificationFeedFragment();
			NotificationFragment.Master = this;
			NotificationFragment.Target = FeedTypeEnum.FeedType.NotificationFeed;
			NotificationFragment.EmptyTableString = Strings.no_notifications;
			NotificationFragment.NewPageContainerID = Resource.Id.search_container;
			NotificationFragment.NoTableData += () =>
			{
				toolbarImageFarLeft.Visibility = ViewStates.Invisible;
			};
			NotificationFragment.HasTableData += () =>
			{
				toolbarImageFarLeft.Visibility = ViewStates.Visible;
			};
			FragmentManager.BeginTransaction().Add(Resource.Id.fragment_container, NotificationFragment).Commit();


			return view;
		}