Handling multiple view Clicks

hey guys in this tutorial i will show you guys multiple ways to handle the clicks in the view of an android...



1 method: 


  ImageButton btplus = (ImageButton)findViewById(R.id.btplus);        
    btplus.setOnClickListener( new ImageButton.OnClickListener(){
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "+", Toast.LENGTH_SHORT).show(); 
        }
    });


 ImageButton btminus = (ImageButton)findViewById(R.id.btminus);
    btminus.setOnClickListener( new ImageButton.OnClickListener(){
        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "-", Toast.LENGTH_SHORT).show(); 
        }
    });

2 method:



for implemnting this method your activity class must implement  OnClickListener interface  then override the onClick class
ImageButton btminus = (ImageButton)findViewById(R.id.btminus);
 btminus.setOnClickListener(this);

 ImageButton btplus = (ImageButton)findViewById(R.id.btplus);
 btplus.setOnClickListener(this);



  public void onClick(View v) {
        switch (v.getId()) {
        case R.id.btplus:
           Toast.makeText(getApplicationContext(), "Plus is clicked" + "+", Toast.LENGTH_SHORT).show(); 
            break;
        case R.id.btminus:
           Toast.makeText(getApplicationContext(),"Minus is clicked" + "-", Toast.LENGTH_SHORT).show();
            break;
        default:
            break;
        }
    } 

3 method:

ImageButton btminus = (ImageButton)findViewById(R.id.btminus);
 btminus.setOnClickListener(listener);

 ImageButton btplus = (ImageButton)findViewById(R.id.btplus);
 btplus.setOnClickListener(listener);


OnClickListener listener=new OnClickListener(){
        @Override
        public void onClick(View v) {

            switch (v.getId()) {
        case R.id.btplus:
           Toast.makeText(getApplicationContext(), "Plus is clicked" + "+", Toast.LENGTH_SHORT).show(); 
            break;
        case R.id.btminus:
           Toast.makeText(getApplicationContext(),"Minus is clicked" + "-", Toast.LENGTH_SHORT).show();
            break;
        default:
            break;
        }
        }
    });


 

Comments

Post a Comment

Popular posts from this blog

How to Add Section Indexers in a Android List View Crete the Adapter for list view . public class ContactsAdapter extends BaseAdapter implements SectionIndexer { Context context; String[] strings; String[] sections ; HashMap alphaIndexer; public ContactsAdapter(Context context, String[] strings) { this.context = context; this.strings = strings; alphaIndexer = new HashMap (); int size = strings.length; for (int x = 0; x < size; x++) { String s = strings[x]; String ch = s.substring(0, 1); ch = ch.toUpperCase(); if (!alphaIndexer.containsKey(ch)) alphaIndexer.put(ch, x); } Set sectionLetters = alphaIndexer.keySet(); ArrayList sectionList = new ArrayList<>(sectionLetters); Collections.sort(sectionList); sections = new String[sectionList.size()]; sectionList.toArray(sections); } @Overr...
Read more

Adding Markers in Google Map and Focusing Camera when map loaded

Map fragment :xml design Map fragment class public class MapView extends Fragment { View view; Bundle bundle; GoogleMap map; Marker marker; String name, vicinity, lat, lng, distance; public SupportMapFragment mapFragment; ImageView home_button, map_button, review_button; public MapView() { // Required empty public constructor } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { if (view == null) { view = inflater.inflate(R.layout.map_view, container, false); } else { ViewGroup parent = (ViewGroup) view.getParent(); if (parent != null) { parent.removeView(view); } } return view; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);...
Read more

Creating a Broadcast Receiver in android

hey guys , In this tutorial  i am going to show how to create a simple broadcast receiver ,which makes your phone vibrate when the charger is connected 1 step: create an android project as you do always then create a class wich extends broadcast receiver class import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.os.Vibrator; import android.widget.Toast; public class Vibrated extends BroadcastReceiver{ @Override public void onReceive(Context context, Intent arg1) { Toast.makeText(context, "Don't panik but your time is up!!!!.", Toast.LENGTH_LONG).show(); // Vibrate the mobile phone Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);  vibrator.vibrate(4000); Toast.makeText(context, "vibrated!!!!.", Toast.LENGTH_LONG).show(); } } 2 step: in your androidmanifest.xml file add the vibrator pe...
Read more