Mark's coding playground...

Here we will talk about the purpose and nature of XAML, comparing it to C# This works almost as HTML XAML is a special usage of XML. XAML has something to do with defining a user interface in our Phone's interface. So in that regard, it feels very much like HTML. But there’s a big difference … XAML is actually used to create instances of classes and set the values of the properties. So, for example, I'm defining a Button control in XAML: <Button Name = "Sample" Width="200" Height="200" HorizontalAlignment="Left" Verticalalignment="Top" Background="Red" Click="Sample_Click" > </Button>

Emulated Device Key Keyboard Key Home HOME Menu (left softkey) F2  or  Page-up button Star (right softkey) Shift-F2  or  Page Down Back ESC Call/dial button F3 Hangup/end call button F4 Search F5 Power button F7 Audio volume up button KEYPAD_PLUS, Ctrl-F5 Audio volume down button KEYPAD_MINUS, Ctrl-F6 Camera button Ctrl-KEYPAD_5, Ctrl-F3 Switch to previous layout orientation (for example, portrait, landscape) KEYPAD_7, Ctrl-F11 Switch to next layout orientation (for example, portrait, landscape) KEYPAD_9, Ctrl-F12 Toggle cell networking on/off F8 Toggle code profiling F9 (only with  -trace  startup option) Toggle fullscreen mode Alt-Enter Toggle trackball mode F6 Enter trackball mode temporarily (while key is pressed) Delete DPad left/up/right/down KEYPAD_4/8/6/2 DPad center click KEYPAD_5 Onion alpha increase/decrease KEYPAD_MULTIPLY(*) / KEYPAD_DIVIDE(/)

<script> This tag is used to define a client-side script, such as a javascript. <noscript> This tag is used to define an alternate content for users that have disabled scripts in their browser or have a browser that doesn't support script.The <noscript> can be used in both <head> and <body>.

<form> This tag is used to create a HTML form for user input. <input> This tag specifies an input field where the user can enter data. <textarea> This tag defines a multi-line input control. <select> This tag is used to create a drop-down list. <option> This tag defines a option in a select list. <optgroup> This tag is used to group related options in a drop-down list. <button> This tag defines a clickable button. <label> This tag defines a label for an input element. <fieldset> This tag is used to group related elements in a form. <legend> This tag defines a caption foe the <fieldset> element. <html> <body> First name: Last name: Male Fill these details and submit it it.....!!!!!!!!!!! Personal Details: User Name: Email: Date of birth: ABC PQR XYZ SRT Submit it! </body> </html>

Toggle Button is a special button that has two states  for eg :"on" and "off".It can be an alternative to Radio Buttons. Method to create a Custom Toggle Button is given below : in custom_btn.xml in style.xml : in custom_toggle_bg.xml : in custom_toggle_btn.xml :                                              

Listview is simply a group of view that displays a list of scrolling items. "Adapters" are used to insert list items to the list.By default we are able to provide only text as list items.In order to delete a row from listview, copy or download this javacode and try yourself. Also see here : Android – Bullets in ListView ListView in Alphabetic Order in ANDROID Single Selection ListView in android Simple ListView in Android java file : public class SimpleListViewActivity extends Activity { private ListView mainListView; private ArrayAdapter<String> listAdapter; ArrayList<String> all_rowtext = new ArrayList<String>() ; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Find the ListView resource. mainListView = (ListView) findViewById(R.id.mainListView); all_rowtext.add("Angel"); all_rowtext.add("Mark"); all_rowtext.add("Coding...

xml for custom title bar: < ?xml version="1.0" encoding="utf-8"?> < LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/titlebar> < TextView style="@style/MyRedTextAppearance" android:padding="7dp" android:id="@+id/txtvew_title" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" android:textColor="#FFFFFF" android:textSize="20dp" android:textStyle="bold" android:gravity="center"/> < /LinearLayout> main.xml: Include the above xml to the main xml as given below... < RelativeLayout xmlns:android="http://schemas.android.com/a...

in xml page: < ?xml version="1.0" encoding="utf-8"?> < LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > < TextView android:id="@+id/tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Which company do you like the most?" android:textSize="25dp" android:textStyle="bold" /> < RadioGroup android:id="@+id/menu" android:layout_width="fill_parent" android:layout_height="wrap_content" android:checkedButton="@+id/lunch" android:orientation="vertical" > < RadioButton android:id="@+id/google" ...

Long click on the button to open the menu. in java class: public class ContextmenuActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button b=(Button)findViewById(R.id.button1); registerForContextMenu(b); } //create the menuuu====================== @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { // TODO Auto-generated method stub super.onCreateContextMenu(menu, v, menuInfo); MenuInflater inflater=getMenuInflater(); inflater.inflate(R.layout.contextmenu, menu); } //click to each menu====================== @Override public boolean onContextItemSelected(MenuItem item) { // TODO Auto-generated method stub if(item.getItemId()==R.id.item1) ...

in main.xml file: < ?xml version="1.0" encoding="utf-8"?> < LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > < Button android:id="@+id/button1" android:layout_width="120dp" android:layout_height="wrap_content" android:text="Button" /> < /LinearLayout> in dialog.xml :(xml for custom dialog box) : < ?xml version="1.0" encoding="utf-8"?> < LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > < ImageView android:id="@+id/imageView1" android:layout_widt...

On a button click we are creating the same class as a dialog so that the touch is not received public class MainActivity extends Activity { Dialog overlayDialog; EditText edt; Button bt; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); edt=(EditText)findViewById(R.id.editText1); bt=(Button)findViewById(R.id.button1); bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub disableAnyInput(); } }); } public void disableAnyInput(){ Toast.makeText(getApplicationContext(), "This will disable any input. Click the backbutton " + "to enable any input.", Toast.LENGTH_LONG).show(); overlayDialog = new Dialog(MainActi...