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Using DialogFragments in Android

Posted by Unknown Minggu, 17 Februari 2013 0 komentar

MainActivity.java :

public class MainActivity extends FragmentActivity {
     @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentManager fm = getSupportFragmentManager();
        dialogfragment testDialog = new dialogfragment();
        testDialog.setRetainInstance(true);
        testDialog.show(fm, "fragment_name");
    }}

Dialogfragment.java :

public class Dialogfragment extends DialogFragment {    
    public void TestDialog() {
        // Empty constructor required for DialogFragment
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.dialog, container);
        return view;
    } }

dialog.xml :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/edit_name"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:orientation="vertical"> 
       <TextView
            android:id="@+id/lbl_your_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Hello from Mark's Playground, DialogFragment Demo"/> 
</LinearLayout>

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Creating an Activity as a Dialog Box

Posted by Unknown Rabu, 23 Januari 2013 0 komentar

In Android ManifestFile :



<activity android:name=".DialogActivity" android:theme="@android:style/Theme.Dialog"> </activity>

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ContextMenu in Android

Posted by Unknown Kamis, 17 Januari 2013 0 komentar

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)
         {
             System.out.println("item1 clicked");
         }
          if(item.getItemId()==R.id.item2)
         {
             System.out.println("item2 clicked");
         }
          if(item.getItemId()==R.id.item3)
         {
             System.out.println("item3 clicked");
         }
          if(item.getItemId()==R.id.item4)
         {
             System.out.println("item4 clicked");
         }       
        return super.onContextItemSelected(item);
    }}

Context Menu Xml:


< ?xml version="1.0" encoding="utf-8"?> 
< menu xmlns:android="http://schemas.android.com/apk/res/android"> 
    < group android:checkableBehavior="single"> 
    < item android:id="@+id/item1" android:title="Item 1" /> 
    < item android:id="@+id/item2" android:title="Item 2" /> 
    < item android:id="@+id/item3" android:title="Item 3" /> 
    < item android:id="@+id/item4" android:title="Item 4" /> 
    < /group> 
    < /menu>

in main Xml:


< ?xml version="1.0" encoding="utf-8"?> 
< RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:gravity="center"> 
    < Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button" /> 
< /RelativeLayout>

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Disabling the Touch of an Activity

Posted by Unknown Senin, 07 Januari 2013 0 komentar

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(MainActivity.this,android.R.style.Theme_Panel);
       overlayDialog.setCancelable(true);
       overlayDialog.show();
        } }