Função para testar se está conectado a internet com Delphi no Android
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| unit Network;
interface
function IsConnected: Boolean;
function IsWiFiConnected: Boolean;
function IsMobileConnected: Boolean;
implementation
uses
System.SysUtils,
Androidapi.JNIBridge,
Androidapi.JNI.GraphicsContentViewText,
Androidapi.JNI.JavaTypes,
FMX.Helpers.Android, Androidapi.Helpers, Misc;
type
JConnectivityManager = interface;
JNetworkInfo = interface;
JNetworkInfoClass = interface(JObjectClass)
['{E92E86E8-0BDE-4D5F-B44E-3148BD63A14C}']
end;
[JavaSignature('android/net/NetworkInfo')]
JNetworkInfo = interface(JObject)
['{6DF61A40-8D17-4E51-8EF2-32CDC81AC372}']
{Methods}
function isAvailable: Boolean; cdecl;
function isConnected: Boolean; cdecl;
function isConnectedOrConnecting: Boolean; cdecl;
end;
TJNetworkInfo = class(TJavaGenericImport<JNetworkInfoClass, JNetworkInfo>) end;
JConnectivityManagerClass = interface(JObjectClass)
['{E03A261F-59A4-4236-8CDF-0068FC6C5FA1}']
{Property methods}
function _GetTYPE_WIFI: Integer; cdecl;
function _GetTYPE_WIMAX: Integer; cdecl;
function _GetTYPE_MOBILE: Integer; cdecl;
{Properties}
property TYPE_WIFI: Integer read _GetTYPE_WIFI;
property TYPE_WIMAX: Integer read _GetTYPE_WIMAX;
property TYPE_MOBILE: Integer read _GetTYPE_MOBILE;
end;
[JavaSignature('android/net/ConnectivityManager')]
JConnectivityManager = interface(JObject)
['{1C4C1873-65AE-4722-8EEF-36BBF423C9C5}']
{Methods}
function getActiveNetworkInfo: JNetworkInfo; cdecl;
function getNetworkInfo(networkType: Integer): JNetworkInfo; cdecl;
end;
TJConnectivityManager = class(TJavaGenericImport<JConnectivityManagerClass, JConnectivityManager>) end;
function GetConnectivityManager: JConnectivityManager;
var
ConnectivityServiceNative: JObject;
begin
ConnectivityServiceNative := SharedActivityContext.getSystemService(TJContext.JavaClass.CONNECTIVITY_SERVICE);
if not Assigned(ConnectivityServiceNative) then
raise Exception.Create('Could not locate Connectivity Service');
Result := TJConnectivityManager.Wrap(
(ConnectivityServiceNative as ILocalObject).GetObjectID);
if not Assigned(Result) then
raise Exception.Create('Could not access Connectivity Manager');
end;
function IsConnected: Boolean;
var
ConnectivityManager: JConnectivityManager;
ActiveNetwork: JNetworkInfo;
begin
ConnectivityManager := GetConnectivityManager;
ActiveNetwork := ConnectivityManager.getActiveNetworkInfo;
Result := Assigned(ActiveNetwork) and ActiveNetwork.isConnected;
end;
function IsWiFiConnected: Boolean;
var
ConnectivityManager: JConnectivityManager;
WiFiNetwork: JNetworkInfo;
begin
ConnectivityManager := GetConnectivityManager;
WiFiNetwork := ConnectivityManager.getNetworkInfo(TJConnectivityManager.JavaClass.TYPE_WIFI);
Result := WiFiNetwork.isConnected;
end;
function IsMobileConnected: Boolean;
var
ConnectivityManager: JConnectivityManager;
MobileNetwork: JNetworkInfo;
begin
ConnectivityManager := GetConnectivityManager;
MobileNetwork := ConnectivityManager.getNetworkInfo(TJConnectivityManager.JavaClass.TYPE_MOBILE);
Result := MobileNetwork.isConnected;
end;
end. |
unit Network;
interface
function IsConnected: Boolean;
function IsWiFiConnected: Boolean;
function IsMobileConnected: Boolean;
implementation
uses
System.SysUtils,
Androidapi.JNIBridge,
Androidapi.JNI.GraphicsContentViewText,
Androidapi.JNI.JavaTypes,
FMX.Helpers.Android, Androidapi.Helpers, Misc;
type
JConnectivityManager = interface;
JNetworkInfo = interface;
JNetworkInfoClass = interface(JObjectClass)
['{E92E86E8-0BDE-4D5F-B44E-3148BD63A14C}']
end;
[JavaSignature('android/net/NetworkInfo')]
JNetworkInfo = interface(JObject)
['{6DF61A40-8D17-4E51-8EF2-32CDC81AC372}']
{Methods}
function isAvailable: Boolean; cdecl;
function isConnected: Boolean; cdecl;
function isConnectedOrConnecting: Boolean; cdecl;
end;
TJNetworkInfo = class(TJavaGenericImport<JNetworkInfoClass, JNetworkInfo>) end;
JConnectivityManagerClass = interface(JObjectClass)
['{E03A261F-59A4-4236-8CDF-0068FC6C5FA1}']
{Property methods}
function _GetTYPE_WIFI: Integer; cdecl;
function _GetTYPE_WIMAX: Integer; cdecl;
function _GetTYPE_MOBILE: Integer; cdecl;
{Properties}
property TYPE_WIFI: Integer read _GetTYPE_WIFI;
property TYPE_WIMAX: Integer read _GetTYPE_WIMAX;
property TYPE_MOBILE: Integer read _GetTYPE_MOBILE;
end;
[JavaSignature('android/net/ConnectivityManager')]
JConnectivityManager = interface(JObject)
['{1C4C1873-65AE-4722-8EEF-36BBF423C9C5}']
{Methods}
function getActiveNetworkInfo: JNetworkInfo; cdecl;
function getNetworkInfo(networkType: Integer): JNetworkInfo; cdecl;
end;
TJConnectivityManager = class(TJavaGenericImport<JConnectivityManagerClass, JConnectivityManager>) end;
function GetConnectivityManager: JConnectivityManager;
var
ConnectivityServiceNative: JObject;
begin
ConnectivityServiceNative := SharedActivityContext.getSystemService(TJContext.JavaClass.CONNECTIVITY_SERVICE);
if not Assigned(ConnectivityServiceNative) then
raise Exception.Create('Could not locate Connectivity Service');
Result := TJConnectivityManager.Wrap(
(ConnectivityServiceNative as ILocalObject).GetObjectID);
if not Assigned(Result) then
raise Exception.Create('Could not access Connectivity Manager');
end;
function IsConnected: Boolean;
var
ConnectivityManager: JConnectivityManager;
ActiveNetwork: JNetworkInfo;
begin
ConnectivityManager := GetConnectivityManager;
ActiveNetwork := ConnectivityManager.getActiveNetworkInfo;
Result := Assigned(ActiveNetwork) and ActiveNetwork.isConnected;
end;
function IsWiFiConnected: Boolean;
var
ConnectivityManager: JConnectivityManager;
WiFiNetwork: JNetworkInfo;
begin
ConnectivityManager := GetConnectivityManager;
WiFiNetwork := ConnectivityManager.getNetworkInfo(TJConnectivityManager.JavaClass.TYPE_WIFI);
Result := WiFiNetwork.isConnected;
end;
function IsMobileConnected: Boolean;
var
ConnectivityManager: JConnectivityManager;
MobileNetwork: JNetworkInfo;
begin
ConnectivityManager := GetConnectivityManager;
MobileNetwork := ConnectivityManager.getNetworkInfo(TJConnectivityManager.JavaClass.TYPE_MOBILE);
Result := MobileNetwork.isConnected;
end;
end.
Fonte: http://stackoverflow.com/questions/18888345/how-to-check-if-network-is-available-on-android-delphi-xe5
Obs: O link da fonte foi encontrado por Ivan Cesar
-
InfusTec
-
9.782 views
- 1 comentários
- 18 de julho de 2016
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Correção para essa função:
{$IFDEF ANDROID}
function GetConnectivityManager: JConnectivityManager;
var
ConnectivityServiceNative: JObject;
begin
ConnectivityServiceNative := TAndroidHelper.Context.getSystemService
(TJContext.JavaClass.CONNECTIVITY_SERVICE);
if not Assigned(ConnectivityServiceNative) then
raise Exception.Create(‘Could not locate Connectivity Service’);
Result := TJConnectivityManager.Wrap((ConnectivityServiceNative as ILocalObject).GetObjectID);
if not Assigned(Result) then
raise Exception.Create(‘Could not access Connectivity Manager’);
end;
{$ENDIF}
{$IFDEF IOS}