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Added additional smarts for establishing permission to draw over other apps (#853)

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Matt Portune 2020-04-24 14:45:11 -04:00 committed by GitHub
parent 2b3915a91f
commit cb0a3e3edf
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1 changed files with 35 additions and 6 deletions
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41
src/Android/Accessibility/AccessibilityHelpers.cs
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@ -1,10 +1,12 @@
using System;
using System.Collections.Generic;
using System.Linq;
using Android.App;
using Android.Content;
using Android.Graphics;
using Android.OS;
using Android.Provider;
using Android.Runtime;
using Android.Views;
using Android.Views.Accessibility;
using Android.Widget;
@ -324,13 +326,40 @@ namespace Bit.Droid.Accessibility
{
if (Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
return Settings.CanDrawOverlays(Android.App.Application.Context);
}
else
{
// TODO do older android versions require a check?
return true;
if (Settings.CanDrawOverlays(Application.Context))
{
return true;
}
var appOpsMgr = (AppOpsManager)Application.Context.GetSystemService(Context.AppOpsService);
var mode = appOpsMgr.CheckOpNoThrow("android:system_alert_window", Process.MyUid(),
Application.Context.PackageName);
if (mode == AppOpsManagerMode.Allowed || mode == AppOpsManagerMode.Ignored)
{
return true;
}
try
{
var wm = Application.Context.GetSystemService(Context.WindowService)
.JavaCast<IWindowManager>();
if (wm == null)
{
return false;
}
var testView = new View(Application.Context);
var layoutParams = GetOverlayLayoutParams();
wm.AddView(testView, layoutParams);
wm.RemoveView(testView);
return true;
}
catch { }
return false;
}
// older android versions are always true
return true;
}
public static LinearLayout GetOverlayView(Context context)