public string GetVersion()
{
var context = global::Android.App.Application.Context;
Android.Content.PM.PackageManager manager = context.PackageManager;
Android.Content.PM.PackageInfo info = manager.GetPackageInfo(context.PackageName, 0);
return(info.VersionName);
}
public int GetBuild()
{
var context = global::Android.App.Application.Context;
Android.Content.PM.PackageManager manager = context.PackageManager;
Android.Content.PM.PackageInfo info = manager.GetPackageInfo(context.PackageName, 0);
return(info.VersionCode);
}
public string GetVersionString()
{
var context = global::Android.App.Application.Context;
Android.Content.PM.PackageManager pm = context.PackageManager;
Android.Content.PM.PackageInfo pinfo = pm.GetPackageInfo(context.PackageName, 0);
return(pinfo.VersionName);
}
public VersionInfo GetVersionAndBuildNumber()
{
Context context = global::Android.App.Application.Context;
Android.Content.PM.PackageManager manager = context.PackageManager;
Android.Content.PM.PackageInfo info = manager.GetPackageInfo(context.PackageName, 0);
return(new VersionInfo(info.VersionName, info.VersionCode.ToString()));
}
public bool PackageIsInstalledOnDevice(string packageName)
{
Android.Content.PM.PackageManager pm = MainActivity.Instance.ApplicationContext.PackageManager;
try
{
pm.GetPackageInfo(packageName, Android.Content.PM.PackageInfoFlags.Activities);
return(true);
}
catch
{
return(false);
}
}
/// <summary>
/// 判断本机上是否有能处理当前Intent的Activity
/// </summary>
/// <returns></returns>
protected bool DoesActivityExists()
{
if (!MainApplication.Initialized)
{
return(false);
}
var app = MainApplication.GetInstance();
Android.Content.PM.PackageManager pm = app.PackageManager;
var list = pm.QueryIntentActivities(intent, Android.Content.PM.PackageInfoFlags.MatchDefaultOnly);
return(list != null && list.Count() > 0);
}
/// <summary>
/// 判断相对应的APP是否存在
/// </summary>
/// <param name="context"></param>
/// <param name="packageName"></param>
/// <returns></returns>
bool isAvilible(Context context, string packageName)
{
Android.Content.PM.PackageManager packageManager = context.PackageManager;
var pinfo = packageManager.GetInstalledPackages(Android.Content.PM.PackageInfoFlags.Activities);
foreach (var item in pinfo)
{
if (item.PackageName.Equals(packageName, StringComparison.CurrentCultureIgnoreCase))
{
return(true);
}
}
return(false);
}