调用文件：
Androidapi.JNI.JavaTypes, Androidapi.JNI.GraphicsContentViewText, Androidapi.JNI.Location, Androidapi.JNIBridge, Androidapi.JNI.Os, Androidapi.Helpers, Androidapi.JNI.Provider; ............................. procedure TForm2.Button6Click(Sender: TObject); var Provider:string; Settings_secure:TJSettings_Secure; Intent:JIntent; begin Provider:=JStringToString(Settings_secure.JavaClass.getString( SharedActivityContext.getContentResolver, TJSettings_system.javaClass.LOCATION_PROVIDERS_ALLOWED)); // if pos(‘gps‘,provider)=0 then // begin Intent:=TJIntent.Create; Intent.setAction(TJSettings.javaClass.ACTION_LOCATION_SOURCE_SETTINGS); SharedActivity.startActivity(Intent); // end; end;
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