Android

using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

using Microsoft.AspNet.SignalR.Client;

using System.Collections.Generic;
//đọc thêm ở đây
//http://developer.telerik.com/products/real-time-mobile-apps-with-appbuilder-xamarin-and-signalr/
namespace SignalRWithXamarin
{
    [Activity(Label = "SignalRWithXamarin", MainLauncher = true)]
    public class MainActivity : Activity
    {
        HubConnection chatConnection;
        IHubProxy SignalRChatHub;


        public event EventHandler<string> OnMessageReceived;

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            SetContentView(Resource.Layout.Main);

           
            chatConnection = new HubConnection("http://www.mynotyfy.somee.com/");
            SignalRChatHub = chatConnection.CreateHubProxy("ChatHub");


            SignalRChatHub.On("broadcastMessage", (string name, string message) =>
            {
                if (OnMessageReceived != null)
                    OnMessageReceived(this, string.Format("{0}: {1}", name, message));
            });

            var input = FindViewById<EditText>(Resource.Id.ChatInput);
            var messages = FindViewById<ListView>(Resource.Id.ChatMessages);
            var adapter = new ArrayAdapter<string>(this, Android.Resource.Layout.SimpleListItem1, new List<string>());

            JoinChat();

           

           
            messages.Adapter = adapter;
            OnMessageReceived += (sender, message) => RunOnUiThread(() =>
            adapter.Add(message));

            Button button = FindViewById<Button>(Resource.Id.ChatButton);
            button.Click += delegate
            {
                if (string.IsNullOrEmpty(input.Text))
                    return;

                Chat(input.Text);
                input.Text = "";
            };
        }

        public async virtual void JoinChat()
        {
            try
            {
                await chatConnection.Start();
            }
            catch (Exception)
            {
                // Do some error handling.
            }
        }

        public async virtual void Chat(string phoneChatMessage)
        {
            if (chatConnection.State == ConnectionState.Connected)
                await SignalRChatHub.Invoke("Send", "Android", phoneChatMessage);
        }

      
    }
}

package com.example.abcpos;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.GridView;

public class OrderMenu extends Activity {

	private GridView gridView;
	private GridViewAdapter customGridAdapter;
	
	<a href="http://www.codeproject.com/Members/override">@Override</a>
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_order_menu);
		
 :sigh:  :sigh:  :sigh:      // It should be R.id.grdOrderMenu *********
		gridView = (GridView) findViewById(R.id.??????)
		
	}

	<a href="http://www.codeproject.com/Members/override">@Override</a>
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.order_menu, menu);
		return true;
	}

	<a href="http://www.codeproject.com/Members/override">@Override</a>
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.abcpos.OrderMenu" >

    <GridView
        android:id="@+id/grdOrderMenu"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:numColumns="3" />

    

</RelativeLayout>

 my project asp.net web base project complate...my web project attach android application..
then working same same web and android ?????????
,so i want help from android application????

,give me lots of ideas....

TextView myTv;
String res = "";
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.universal);

    myTv = (TextView) findViewById(R.id.textView);

    try {

        // OPENING THE REQUIRED TEXT FILE
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                getAssets().open("universal")));

        String myLine = reader.readLine();

        // NOW READING THEM LINE BY LINE UPTO THE END OF FILE
        while (myLine != null) {
            res += myLine + "\n";
            myLine = reader.readLine();
        }

        // CLOSE THE FILE AFTER WE HAVE FINISHED READING
        reader.close();
    } catch (IOException e) {

        // INFORM USER OF ANY ERROR...
        Toast.makeText(getApplicationContext(),
                "Error Opening the File !!!", Toast.LENGTH_LONG).show();
    }

    // AND FINALLY SHOW THE READ TEXT IN OUR TEXT VIEW
    myTv.setText(res);

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.mysecondapp.MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

</RelativeLayout>

10-30 17:36:54.762: I/dalvikvm(1792): Could not find method android.view.ViewGroup.onNestedScrollAccepted, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onNestedScrollAccepted
10-30 17:36:54.762: W/dalvikvm(1792): VFY: unable to resolve virtual method 11378: Landroid/view/ViewGroup;.onNestedScrollAccepted (Landroid/view/View;Landroid/view/View;I)V
10-30 17:36:54.762: D/dalvikvm(1792): VFY: replacing opcode 0x6f at 0x0000
10-30 17:36:54.772: I/dalvikvm(1792): Could not find method android.view.ViewGroup.onStopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.onStopNestedScroll
10-30 17:36:54.772: W/dalvikvm(1792): VFY: unable to resolve virtual method 11384: Landroid/view/ViewGroup;.onStopNestedScroll (Landroid/view/View;)V
10-30 17:36:54.772: D/dalvikvm(1792): VFY: replacing opcode 0x6f at 0x0000
10-30 17:36:54.782: I/dalvikvm(1792): Could not find method android.support.v7.internal.widget.ActionBarOverlayLayout.stopNestedScroll, referenced from method android.support.v7.internal.widget.ActionBarOverlayLayout.setHideOnContentScrollEnabled
10-30 17:36:54.782: W/dalvikvm(1792): VFY: unable to resolve virtual method 8957: Landroid/support/v7/internal/widget/ActionBarOverlayLayout;.stopNestedScroll ()V
10-30 17:36:54.782: D/dalvikvm(1792): VFY: replacing opcode 0x6e at 0x000e
10-30 17:36:54.792: D/AndroidRuntime(1792): Shutting down VM
10-30 17:36:54.792: W/dalvikvm(1792): threadid=1: thread exiting with uncaught exception (group=0xb2b10ba8)
10-30 17:36:54.812: E/AndroidRuntime(1792): FATAL EXCEPTION: main
10-30 17:36:54.812: E/AndroidRuntime(1792): Process: com.example.mysecondapp, PID: 1792
10-30 17:36:54.812: E/AndroidRuntime(1792): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mysecondapp/com.example.mysecondapp.MainActivity}: java.lang.RuntimeException: Binary XML file line #27: You must supply a layout_width attribute.
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.ActivityThread.access$800(ActivityThread.java:135)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.os.Handler.dispatchMessage(Handler.java:102)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.os.Looper.loop(Looper.java:136)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.ActivityThread.main(ActivityThread.java:5017)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at java.lang.reflect.Method.invokeNative(Native Method)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at java.lang.reflect.Method.invoke(Method.java:515)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at dalvik.system.NativeStart.main(Native Method)
10-30 17:36:54.812: E/AndroidRuntime(1792): Caused by: java.lang.RuntimeException: Binary XML file line #27: You must supply a layout_width attribute.
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:492)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:5948)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:6117)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.support.v7.internal.widget.ActionBarOverlayLayout$LayoutParams.<init>(ActionBarOverlayLayout.java:801)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.support.v7.internal.widget.ActionBarOverlayLayout.generateLayoutParams(ActionBarOverlayLayout.java:353)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.support.v7.internal.widget.ActionBarOverlayLayout.generateLayoutParams(ActionBarOverlayLayout.java:50)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.view.LayoutInflater.rInflate(LayoutInflater.java:757)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.support.v7.app.ActionBarActivityDelegateBase.ensureSubDecor(ActionBarActivityDelegateBase.java:273)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:225)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at com.example.mysecondapp.MainActivity.onCreate(MainActivity.java:13)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.Activity.performCreate(Activity.java:5231)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
10-30 17:36:54.812: E/AndroidRuntime(1792): 	... 11 more
10-30 17:36:57.842: I/Process(1792): Sending signal. PID: 1792 SIG: 9