11using System . Collections . Generic ;
22using Android . App ;
33using Android . Content . PM ;
4- using Android . Graphics . Drawables ;
54using Android . OS ;
65using Android . Views ;
76using Android . Widget ;
87using Java . Lang ;
98using Com . EightbitLab . BlurViewBinding ;
10- using AndroidX . ViewPager . Widget ;
11- using AndroidX . AppCompat . App ;
12- using Google . Android . Material . Tabs ;
13- using AndroidX . Fragment . App ;
14- //using Com.EightbitLab.SupportRenderScriptBlurBinding;
15-
16- // Ported from:
17- // https://github.com/Dimezis/BlurView/blob/b5f6f414ae16885acb709fe5a65d24df05c4c62a/app/src/main/java/com/eightbitlab/blurview_sample/MainActivity.java
9+ using AndroidX . ViewPager . Widget ;
10+ using AndroidX . AppCompat . App ;
11+ using Google . Android . Material . Tabs ;
12+ using AndroidX . Fragment . App ;
13+ using Math = Java . Lang . Math ;
14+ using String = Java . Lang . String ;
15+
16+ //using Com.EightbitLab.SupportRenderScriptBlurBinding;
17+
18+ // Ported from:
19+ // https://github.com/Dimezis/BlurView/blob/b5f6f414ae16885acb709fe5a65d24df05c4c62a/app/src/main/java/com/eightbitlab/blurview_sample/MainActivity.java
1820namespace SampleApp
1921{
2022 [ Activity (
@@ -25,73 +27,88 @@ namespace SampleApp
2527 Theme = "@style/Theme.MyTheme" ) ]
2628 public class MainActivity : AppCompatActivity
2729 {
28- ViewGroup root ;
29- ViewPager viewPager ;
30- SeekBar radiusSeekBar ;
31- BlurView topBlurView ;
32- BlurView bottomBlurView ;
33- TabLayout tabLayout ;
30+ private ViewPager viewPager ;
31+ private TabLayout tabLayout ;
32+ private BlurView bottomBlurView ;
33+ private BlurView topBlurView ;
34+ private SeekBar radiusSeekBar ;
35+ private ViewGroup root ;
3436
3537 protected override void OnCreate ( Bundle savedInstanceState )
3638 {
3739 base . OnCreate ( savedInstanceState ) ;
3840 SetContentView ( Resource . Layout . activity_main ) ;
41+ InitView ( ) ;
42+ SetupBlurView ( ) ;
43+ SetupViewPager ( ) ;
44+ }
3945
40- root = FindViewById < ViewGroup > ( Resource . Id . root ) ;
46+ private void InitView ( )
47+ {
4148 viewPager = FindViewById < ViewPager > ( Resource . Id . viewPager ) ;
42- radiusSeekBar = FindViewById < SeekBar > ( Resource . Id . radiusSeekBar ) ;
43- topBlurView = FindViewById < BlurView > ( Resource . Id . topBlurView ) ;
44- bottomBlurView = FindViewById < BlurView > ( Resource . Id . bottomBlurView ) ;
4549 tabLayout = FindViewById < TabLayout > ( Resource . Id . tabLayout ) ;
50+ bottomBlurView = FindViewById < BlurView > ( Resource . Id . bottomBlurView ) ;
51+ topBlurView = FindViewById < BlurView > ( Resource . Id . topBlurView ) ;
52+ radiusSeekBar = FindViewById < SeekBar > ( Resource . Id . radiusSeekBar ) ;
53+ root = FindViewById < ViewGroup > ( Resource . Id . root ) ;
54+ }
55+
56+ private void SetupViewPager ( )
57+ {
58+ viewPager . OffscreenPageLimit = 2 ;
59+ viewPager . Adapter = new ViewPagerAdapter ( SupportFragmentManager ) ;
60+ tabLayout . SetupWithViewPager ( viewPager ) ;
61+ }
4662
47- SetupBlurView ( ) ;
48- SetupViewPager ( ) ;
49- }
50-
5163 void SetupBlurView ( )
5264 {
53- float radius = 25f ;
54- float minBlurRadius = 10f ;
55- float step = 4f ;
65+ const float radius = 25f ;
66+ const float minBlurRadius = 4f ;
67+ const float step = 4f ;
5668
5769 //set background, if your root layout doesn't have one
58- Drawable windowBackground = Window . DecorView . Background ;
59-
60- var topViewSettings = topBlurView . SetupWith ( root )
70+ var windowBackground = Window ? . DecorView . Background ;
71+ var algorithm = GetBlurAlgorithm ( ) ;
72+
73+ var topViewSettings = topBlurView . SetupWith ( root , algorithm )
6174 . SetFrameClearDrawable ( windowBackground )
62- . SetBlurAlgorithm ( new RenderScriptBlur ( this ) ) // SupportRenderScriptBlur
63- . SetBlurRadius ( radius )
64- . SetHasFixedTransformationMatrix ( true ) ;
75+ . SetBlurRadius ( radius ) ;
6576
66- var bottomViewSettings = bottomBlurView . SetupWith ( root )
77+ var bottomViewSettings = bottomBlurView . SetupWith ( root , algorithm )
6778 . SetFrameClearDrawable ( windowBackground )
68- . SetBlurAlgorithm ( new RenderScriptBlur ( this ) ) // SupportRenderScriptBlur
69- . SetBlurRadius ( radius )
70- . SetHasFixedTransformationMatrix ( true ) ;
79+ . SetBlurRadius ( radius ) ;
7180
72- int initialProgress = ( int ) ( radius * step ) ;
81+ var initialProgress = ( int ) ( radius * step ) ;
7382 radiusSeekBar . Progress = initialProgress ;
7483
7584 radiusSeekBar . ProgressChanged += ( sender , args ) =>
7685 {
77- float blurRadius = args . Progress / step ;
86+ var blurRadius = args . Progress / step ;
7887 blurRadius = Math . Max ( blurRadius , minBlurRadius ) ;
7988 topViewSettings . SetBlurRadius ( blurRadius ) ;
8089 bottomViewSettings . SetBlurRadius ( blurRadius ) ;
8190 } ;
8291 }
8392
84- void SetupViewPager ( )
93+ private IBlurAlgorithm GetBlurAlgorithm ( )
8594 {
86- viewPager . OffscreenPageLimit = 2 ;
87- viewPager . Adapter = new ViewPagerAdapter ( SupportFragmentManager ) ;
88- tabLayout . SetupWithViewPager ( viewPager ) ;
95+ IBlurAlgorithm algorithm ;
96+ if ( Build . VERSION . SdkInt > BuildVersionCodes . R )
97+ {
98+ algorithm = new RenderEffectBlur ( ) ;
99+ }
100+ else
101+ {
102+ algorithm = new RenderScriptBlur ( this ) ;
103+ }
104+
105+ return algorithm ;
89106 }
90107 }
91108
92109 class ViewPagerAdapter : FragmentPagerAdapter
93110 {
94- List < BaseFragment > pages ;
111+ private readonly List < BaseFragment > pages ;
95112
96113 public ViewPagerAdapter ( AndroidX . Fragment . App . FragmentManager fragmentManager )
97114 : base ( fragmentManager , BehaviorResumeOnlyCurrentFragment )
@@ -113,8 +130,7 @@ public override AndroidX.Fragment.App.Fragment GetItem(int position)
113130
114131 public override ICharSequence GetPageTitleFormatted ( int position )
115132 {
116- return new Java . Lang . String ( pages [ position ] . Title ) ;
133+ return new String ( pages [ position ] . Title ) ;
117134 }
118135 }
119136}
120-
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