xamarin.android

问题 My client wants to put the app I developed to be in their launcher favorite and they are asking for the package name and class name of the launcher. Package name is quite straightforward, but ClassName isn't since if I look into the manifest the class name is preceeded by a hash like this: md599e473470f20dc18f556aff51bcfbcb1.LaunchScreen So what is the class name I have to use for launcher favorite, the whole thing or only the class name LaunchScreen? Thanks 回答1: (Congrats on getting into

问题 transferAvailPowered.axml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:focusable="false" android:layout_margin="5dp" android:padding="5dp" android:gravity="left"> <TextView android:id="@+id/availSerial" android:layout_width="0dp" android:layout_weight=".30" android:layout_height="wrap_content" android:layout

问题 Please install package: 'Xamarin.Android.Support.Design' available in SDK installer. Android resource directory C:\Users\Srinivasarao\AppData\Local\Xamarin\Android.Support.Design\23.0.1.3\embedded\./ doesn't exist. Sample.Droid Please install package: 'Xamarin.Android.Support.Design' available in SDK installer. Java library file C:\Users\Srinivasarao\AppData\Local\Xamarin\Android.Support.Design\23.0.1.3\embedded\classes.jar doesn't exist. Sample.Droid Please install package: 'Xamarin.Android

问题 My assignment is to create a program that displays two buttons and my name and current time/date on the main screen. The goal is to have a passage appear once one of the buttons are pressed that will make use of the entire screen. So far, I have created the main page with the labels and buttons. However, I am very lost as to how to display the passage with respect to the button clicked. I am using the empirically fitting text way to make the best use of the screen. I have created a FontCalc

问题 I am developing Xamrin form application. Inside it, I am trying to capture multiple photos using a camera with the same intent. without using any nuget package? for this, I am following this link Camera MainActivity.cs static readonly File file = new File(Environment.GetExternalStoragePublicDirectory( Environment.DirectoryPictures), "tmp.jpg"); At the end of OnCreate (Xamarin.Forms.Application.Current as App).ShouldTakePicture += () => { var intent = new Intent(MediaStore.ActionImageCapture);

问题 Good evening, I am trying to refine some code using async programming and would like to know if the following code is well written or not, and if is there any way to improve it. Its purpose is to download some JSON from a given URL and deserialize it to an object. I have three (now four) questions ( and 1 issue described at the end of the post ): Should I use TaskEx.Run to run Newtonsoft.Json.JsonConvert.DeserializeObject<T> ? Is there any good way (without checking the object properties) to

问题 I'm trying to style a RelativeLayout with a custom attribute appNS:style1="@style/RelativeLayout2" The value of this attribute is read during construction with the static method GetStyle(context, attributeSet) and passed to the appropriate base constructor public RelativeLayout2(Context context, IAttributeSet attributeSet) : base(context, attributeSet, 0, GetStyle(context, attributeSet)) { } None of the styling in @style/RelativeLayout2 takes effect, and may be related to a separate issue

问题 I'm trying to create a DrawerLayout programmatically using Xamarin.Android , but I faced a problem when trying to add the ListView which should be dragable form the left .. Here is my code : DrawerLayout myDrawerLayout = new DrawerLayout(this); myDrawerLayout.LayoutParameters = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent); SetContentView(myDrawerLayout); FrameLayout myFrameLayout = new FrameLayout(this); myFrameLayout.LayoutParameters =

问题 I'm trying to make a HEAD request to Google.com. This is my code: using (var client = new HttpClient()) { var m = new HttpRequestMessage(HttpMethod.Head, "http://google.com"); var resp = await client.SendAsync(m); return true; } When I execute this code I get the following exception: System.Net.WebException: The request requires buffering data to succeed. at System.Net.HttpWebRequest.Redirect (System.Net.WebAsyncResult result, HttpStatusCode code, System.Net.WebResponse response) [0x00000] in

问题 The conn.setPassword and conn.open have error, can SQLite.NET set the password to the sqlite database? private void Btnsign_Click(object sender, EventArgs e) { try { SQLiteConnection conn = new SQLiteConnection("Data Source=user.db3;Version=3;"); conn.SetPassword("password"); conn.open(); var data = conn.Table<login>(); var data1 = data.Where(x => x.username == txtusername.Text && x.password == txtPassword.Text).FirstOrDefault(); if (data1 != null) { Toast.MakeText(this, "Login Success",