Xamarin系統不知道有關Android.Graphics.Bitmap

-1

所以我試圖調整使用android圖形位圖的圖像。代碼中沒有錯誤，但是當我構建項目時，它會拋出「System.NotSupportedException：不知道Android.Graphics.Bitmap」異常。Xamarin系統不知道有關Android.Graphics.Bitmap

我試圖勾選公共語言運行時異常並重建項目都沒有工作。

這裏是我的代碼

[Activity(MainLauncher = false, Theme = "@style/MyTheme")] 
    public class Duzenle_Activity : ActionBarActivity 
    { 
    public static ListView liw; 
    Intent intent = new Intent(); 

    public Dialog dialog; 
    public static int toplam_hesap_tutucu; 
    public static Duzenle_Adapter adapt; 
    public static TextView toplam; 
    private BackgroundWorker bw = new BackgroundWorker(); 
    public static int toplam_hesap = 0; 
    public List<Sepet> gecici_sepet; 
    List<Yemek_Liste> yemek_ = new List<Yemek_Liste>(); 


    protected override void OnCreate(Bundle bundle) 
    { 
     base.OnCreate(bundle); 
     SetContentView(Resource.Layout.menu_duzenle); 
     var toolbar = FindViewById<Toolbar>(Resource.Id.toolbar); 
     SetSupportActionBar(toolbar); 
     SupportActionBar.Title = "Duzenle"; 
     yemek_ = MainActivity.db.selectItem(); 

     liw = FindViewById<ListView>(Resource.Id.listv_duzenle); 
     adapt = new Duzenle_Adapter(this, Resource.Layout.duzenle_model, yemek_,this); 
     liw.Adapter = adapt; 

     var toolbarBottom = FindViewById<Toolbar>(Resource.Id.toolbar_bottom_duzenle); 
     toolbarBottom.InflateMenu(Resource.Menu.ekle_action); 
     toolbarBottom.MenuItemClick += (sender, e) => 
     { 

      if (e.Item.TitleFormatted.ToString() == "Ekle") 
      { 
       var transaction = FragmentManager.BeginTransaction(); 
       var dialogFragment = new Dialog_Ekle(this); 

       dialogFragment.Show(transaction, "dialog_fragment"); 

      } 

     }; 
     } 
    protected override void OnActivityResult(int requestCode, Result resultCode, Intent data) 
    { 
     base.OnActivityResult(requestCode, resultCode, data); 

     if (resultCode == Result.Ok) 
     { 

      Duzenle_Adapter adapter = ((Duzenle_Adapter)liw.Adapter); 
      Bitmap mBitmap = null; 
      mBitmap = Android.Provider.MediaStore.Images.Media.GetBitmap(ContentResolver, data.Data); 


      Bitmap originalImage = BitmapFactory.DecodeByteArray(mBitmap.ToArray<Byte>(), 0, mBitmap.ByteCount); 
      Bitmap resizedImage = Bitmap.CreateScaledBitmap(originalImage, 25, 25, false); 
      adapter.al_getir().adresler = resizedImage; 

      adapter.NotifyDataSetChanged(); 
      Console.WriteLine("ADRES1" + " " + data.Data); 


     } 
    } 
    public void tikla() 
    { 
     var imageIntent = new Intent(); 
     imageIntent.SetType("image/*"); 
     imageIntent.SetAction(Intent.ActionGetContent); 
     StartActivityForResult(
      Intent.CreateChooser(imageIntent, "Select photo"), 0); 

    } 
}

而且我從畫廊的URI獲取圖像。

編輯：爲什麼當代碼沒有錯誤時拋出這個異常。其實很奇怪。它不能關於android.graphics庫嗎？

編輯2：我保存這些位圖到數據庫，然後在列表視圖中顯示它

Bitmap a = sepet[position].adres; 
      tut.img.SetImageBitmap(a);

來源

2016-12-06 M.Han

請添加複製項目你的問題，所以你有更多的背景。 –

你是什麼意思複製項目 –

http://stackoverflow.com/help/mcve –

基於我剛纔從你請儘量將得到：

protected override void OnActivityResult(int requestCode, Result resultCode, Intent data) 
     { 
      base.OnActivityResult(requestCode, resultCode, data); 

      if (resultCode == Result.Ok) 
      { 
       Duzenle_Adapter adapter = ((Duzenle_Adapter)listView1.Adapter); 
       //adapter.SelectedYemek.ImageUri = data.Data; 
       var mBitmap = Android.Provider.MediaStore.Images.Media.GetBitmap(ContentResolver, data.Data); 
       adapter.SelectedYemek.ImageBitmap = Bitmap.CreateScaledBitmap(mBitmap, 80, 80, false); 
       adapter.NotifyDataSetChanged(); 
      } 
     }

來源

2016-12-12 18:03:52

@ M.Han它是否適合你？ –

Xamarin系統不知道有關Android.Graphics.Bitmap

回答

相關問題