1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
using System;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using Android.Content.Res;
using Android.Graphics;
using Android.Graphics.Drawables;
using Android.Support.V4.Content;
using Path = System.IO.Path;
using Xamarin.Forms.Internals;
namespace Xamarin.Forms.Platform.Android
{
public static class ResourceManager
{
public static Type DrawableClass { get; set; }
public static Type ResourceClass { get; set; }
internal static Drawable GetFormsDrawable(this Resources resource, FileImageSource fileImageSource)
{
var file = fileImageSource.File;
Drawable drawable = resource.GetDrawable(fileImageSource);
if(drawable == null)
{
var bitmap = GetBitmap(resource, file) ?? BitmapFactory.DecodeFile(file);
if (bitmap != null)
drawable = new BitmapDrawable(resource, bitmap);
}
return drawable;
}
public static Bitmap GetBitmap(this Resources resource, FileImageSource fileImageSource)
{
var file = fileImageSource.File;
var bitmap = GetBitmap(resource, file);
if (bitmap != null)
return bitmap;
return BitmapFactory.DecodeFile(file);
}
public static Bitmap GetBitmap(this Resources resource, string name)
{
return BitmapFactory.DecodeResource(resource, IdFromTitle(name, DrawableClass));
}
public static Task<Bitmap> GetBitmapAsync(this Resources resource, string name)
{
return BitmapFactory.DecodeResourceAsync(resource, IdFromTitle(name, DrawableClass));
}
public static Drawable GetDrawable(this Resources resource, string name)
{
int id = IdFromTitle(name, DrawableClass);
if (id == 0)
{
Log.Warning("Could not load image named: {0}", name);
return null;
}
return ContextCompat.GetDrawable(Forms.Context, id);
}
public static int GetDrawableByName(string name)
{
return IdFromTitle(name, DrawableClass);
}
public static int GetResourceByName(string name)
{
return IdFromTitle(name, ResourceClass);
}
public static void Init(Assembly masterAssembly)
{
DrawableClass = masterAssembly.GetTypes().FirstOrDefault(x => x.Name == "Drawable" || x.Name == "Resource_Drawable");
ResourceClass = masterAssembly.GetTypes().FirstOrDefault(x => x.Name == "Id" || x.Name == "Resource_Id");
}
internal static int IdFromTitle(string title, Type type)
{
string name = Path.GetFileNameWithoutExtension(title);
int id = GetId(type, name);
return id;
}
static int GetId(Type type, string memberName)
{
object value = type.GetFields().FirstOrDefault(p => p.Name == memberName)?.GetValue(type)
?? type.GetProperties().FirstOrDefault(p => p.Name == memberName)?.GetValue(type);
if (value is int)
return (int)value;
return 0;
}
}
}
|
