public void ShareMsg(string msg, List <string> filters = null, string chooserTitle = "")
{
var context = Android.App.Application.Context;
string contentTypeOfMIME = "text/plain";
Intent share = new Intent(Android.Content.Intent.ActionSend);
share.SetType(contentTypeOfMIME);
List <Intent> targetedShareIntents = new List <Intent>();
var query = context.PackageManager.QueryIntentActivities(share, (Android.Content.PM.PackageInfoFlags) 0);
foreach (Android.Content.PM.ResolveInfo resolveInfo in query)
{
// string msg = $"{item.ActivityInfo.PackageName}; {item.ActivityInfo.Name}";
// ActivityInfo.PackageName : com.tencent.mm
// ActivityInfo.Name : com.tencentt.mm.ui.tools.ShareImgUI
if (filters != null) // 程序员设置过滤条件
{
if (filters.Any(i => resolveInfo.ActivityInfo.PackageName.Contains(i, StringComparison.CurrentCultureIgnoreCase) ||
resolveInfo.ActivityInfo.Name.Contains(i, StringComparison.CurrentCultureIgnoreCase)) == false)
{
continue; // 不满足过滤条件
}
}
Intent origIntent = new Intent(Intent.ActionSend);
origIntent.SetType(contentTypeOfMIME);
origIntent.PutExtra(Intent.ExtraText, msg);
origIntent.SetComponent(new Android.Content.ComponentName(pkg: resolveInfo.ActivityInfo.PackageName, cls: resolveInfo.ActivityInfo.Name));
var intentToAdd = new Android.Content.PM.LabeledIntent
(
origIntent: origIntent,
sourcePackage: resolveInfo.ActivityInfo.PackageName,
nonLocalizedLabel: resolveInfo.LoadLabel(pm: context.PackageManager),
icon: resolveInfo.ActivityInfo.Icon
);
targetedShareIntents.Add(intentToAdd);
}
if (targetedShareIntents.Count <= 0)
{
string errMsg = $"找不到相关应用。";
if (filters != null)
{
errMsg += "filters:";
foreach (var item in filters)
{
errMsg += "\r\n" + item;
}
}
throw new Exception(errMsg);
}
Intent chooserIntent = Intent.CreateChooser(new Intent(), $"分享到{chooserTitle}");
var flags = ActivityFlags.ClearTop | ActivityFlags.NewTask; // https://github.com/xamarin/Essentials/blob/main/Xamarin.Essentials/Share/Share.android.cs
chooserIntent.SetFlags(flags);
IParcelable[] args = new IParcelable[targetedShareIntents.Count];
for (int i = 0; i < targetedShareIntents.Count; i++)
{
args[i] = targetedShareIntents[i];
}
chooserIntent.PutExtra(Intent.ExtraInitialIntents, args);
Android.App.Application.Context.StartActivity(chooserIntent);
}
/// <summary>
/// 分享
/// 图片不保存在文件
///
/// 类似于某些打卡软件，不会将文件存储到文件
/// </summary>
private void shareImageByChooser(Android.Graphics.Bitmap bitmap, List <string> filters = null, string chooserTitle = "")
{
var context = Android.App.Application.Context;
string contentTypeOfMIME = "image/*";
Intent share = new Intent(Android.Content.Intent.ActionSend);
share.SetType(contentTypeOfMIME);
List <Intent> targetedShareIntents = new List <Intent>();
var query = Android.App.Application.Context.PackageManager.QueryIntentActivities(share, (Android.Content.PM.PackageInfoFlags) 0);
foreach (Android.Content.PM.ResolveInfo resolveInfo in query)
{
// string msg = $"{item.ActivityInfo.PackageName}; {item.ActivityInfo.Name}";
// ActivityInfo.PackageName : com.tencent.mm
// ActivityInfo.Name : com.tencentt.mm.ui.tools.ShareImgUI
if (filters != null) // 程序员设置过滤条件
{
if (filters.Any(i => resolveInfo.ActivityInfo.PackageName.Contains(i) || resolveInfo.ActivityInfo.Name.Contains(i)) == false)
{
continue; // 不满足过滤条件
}
}
Intent origIntent = new Intent(Intent.ActionSend);
origIntent.SetType(contentTypeOfMIME);
origIntent.AddFlags(Android.Content.ActivityFlags.GrantReadUriPermission | Android.Content.ActivityFlags.GrantWriteUriPermission); // 发图片
origIntent.SetAction(Intent.ActionSend); // 发图片
Android.Net.Uri uri = null;
if
(
context.ApplicationInfo.TargetSdkVersion >= Android.OS.BuildVersionCodes.N &&
Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.N
)
{
var k = Android.Provider.MediaStore.Images.Media.InsertImage
(
cr: context.ContentResolver,
source: bitmap,
title: "Share Images",
description: "Share Image Description"
);
if (string.IsNullOrWhiteSpace(k) == true)
{
throw new Exception("k值为null，估计是由于未允许读写外部存储器权限引起。\r\nAndroid.Provider.MediaStore.Images.Media.InsertImage");
}
uri = Android.Net.Uri.Parse(k);
}
else
{
// uri = Android.Net.Uri.FromFile("TODO"); // 不再使用路径 导致这里是没有参数的
}
origIntent.PutExtra(Intent.ExtraStream, uri);
origIntent.SetComponent(new Android.Content.ComponentName(pkg: resolveInfo.ActivityInfo.PackageName, cls: resolveInfo.ActivityInfo.Name));
var intentToAdd = new Android.Content.PM.LabeledIntent
(
origIntent: origIntent,
sourcePackage: resolveInfo.ActivityInfo.PackageName,
nonLocalizedLabel: resolveInfo.LoadLabel(pm: Android.App.Application.Context.PackageManager),
icon: resolveInfo.ActivityInfo.Icon
);
targetedShareIntents.Add(intentToAdd);
}
if (targetedShareIntents.Count <= 0)
{
string msg = $"找不到相关应用。";
if (filters != null)
{
msg += "filters:";
foreach (var item in filters)
{
msg += "\r\n" + item;
}
}
throw new Exception(msg);
}
Intent chooserIntent = Intent.CreateChooser(target: new Intent(), title: $"分享到{chooserTitle}");
var flags = ActivityFlags.ClearTop | ActivityFlags.NewTask; // 参考自 https://github.com/xamarin/Essentials/blob/main/Xamarin.Essentials/Share/Share.android.cs
chooserIntent.SetFlags(flags);
IParcelable[] args = new IParcelable[targetedShareIntents.Count];
for (int i = 0; i < targetedShareIntents.Count; i++)
{
args[i] = targetedShareIntents[i];
}
chooserIntent.PutExtra(Intent.ExtraInitialIntents, args);
Android.App.Application.Context.StartActivity(chooserIntent);
}
public void ShareFile(string filePath, List <string> filters = null, string chooserTitle = "")
{
Java.IO.File file_JavaIO = new Java.IO.File(filePath);
if (file_JavaIO.Exists() == false)
{
throw new Exception("文件不存在");
}
var context = Android.App.Application.Context;
string contentTypeOfMIME = new Xamarin.Essentials.ShareFile(filePath).ContentType;
Intent share = new Intent(Android.Content.Intent.ActionSend);
share.SetType(contentTypeOfMIME);
List <Intent> targetedShareIntents = new List <Intent>();
var query = Android.App.Application.Context.PackageManager.QueryIntentActivities(share, (Android.Content.PM.PackageInfoFlags) 0);
foreach (Android.Content.PM.ResolveInfo resolveInfo in query)
{
// string msg = $"{item.ActivityInfo.PackageName}; {item.ActivityInfo.Name}";
// ActivityInfo.PackageName : com.tencent.mm
// ActivityInfo.Name : com.tencentt.mm.ui.tools.ShareImgUI
if (filters != null) // 程序员设置过滤条件
{
if (filters.Any(i => resolveInfo.ActivityInfo.PackageName.Contains(i, StringComparison.CurrentCultureIgnoreCase) ||
resolveInfo.ActivityInfo.Name.Contains(i, StringComparison.CurrentCultureIgnoreCase)) == false)
{
continue; // 不满足过滤条件
}
}
Intent origIntent = new Intent(Intent.ActionSend);
origIntent.SetType(contentTypeOfMIME);
origIntent.AddFlags(Android.Content.ActivityFlags.GrantReadUriPermission | Android.Content.ActivityFlags.GrantWriteUriPermission); // 发图片
origIntent.SetAction(Intent.ActionSend); // 发图片
Android.Net.Uri uri = null;
if
(
context.ApplicationInfo.TargetSdkVersion >= Android.OS.BuildVersionCodes.N &&
Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.N
)
{
var providerAuthority = Android.App.Application.Context.PackageName + ".fileProvider";
uri = Xamarin.Essentials.FileProvider.GetUriForFile
(
context: context,
authority: providerAuthority,
file: new Java.IO.File(filePath)
);
}
else
{
// uri = Android.Net.Uri.FromFile("TODO"); // 不再使用路径 导致这里是没有参数的
}
origIntent.PutExtra(Intent.ExtraStream, uri);
origIntent.SetComponent(new Android.Content.ComponentName(pkg: resolveInfo.ActivityInfo.PackageName, cls: resolveInfo.ActivityInfo.Name));
var intentToAdd = new Android.Content.PM.LabeledIntent
(
origIntent: origIntent,
sourcePackage: resolveInfo.ActivityInfo.PackageName,
nonLocalizedLabel: resolveInfo.LoadLabel(pm: Android.App.Application.Context.PackageManager),
icon: resolveInfo.ActivityInfo.Icon
);
targetedShareIntents.Add(intentToAdd);
}
if (targetedShareIntents.Count <= 0)
{
string msg = $"找不到相关应用。";
if (filters != null)
{
msg += "filters:";
foreach (var item in filters)
{
msg += "\r\n" + item;
}
}
throw new Exception(msg);
}
Intent chooserIntent = Intent.CreateChooser(target: new Intent(), title: $"分享到{chooserTitle}");
var flags = ActivityFlags.ClearTop | ActivityFlags.NewTask; // 参考自 https://github.com/xamarin/Essentials/blob/main/Xamarin.Essentials/Share/Share.android.cs
chooserIntent.SetFlags(flags);
IParcelable[] args = new IParcelable[targetedShareIntents.Count];
for (int i = 0; i < targetedShareIntents.Count; i++)
{
args[i] = targetedShareIntents[i];
}
chooserIntent.PutExtra(Intent.ExtraInitialIntents, args);
Android.App.Application.Context.StartActivity(chooserIntent);
}