Android Open Source - TouchEventDemo Main Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.example.app;
/*from  w  ww.j a  va 2s .  c  o m*/
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;

public class MainActivity extends ActionBarActivity {

    private static final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment())
                    .commit();
        }
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    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);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }
    }

    @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                Log.d(TAG, "[dispatchTouchEvent] -> ACTION_DOWN");
                break;
                //Log.i(TAG, "[dispatchTouchEvent] -> ACTION_DOWN, return true");
                //return true;
            case MotionEvent.ACTION_MOVE:
                Log.d(TAG, "[dispatchTouchEvent] -> ACTION_MOVE");
                break;
                //Log.i(TAG, "[dispatchTouchEvent] -> ACTION_MOVE, return true");
                //return true;
            case MotionEvent.ACTION_UP:
                Log.d(TAG, "[dispatchTouchEvent] -> ACTION_UP");
                break;
            case MotionEvent.ACTION_CANCEL:
                Log.d(TAG, "[dispatchTouchEvent] -> ACTION_CANCEL");
                break;
            default:
                break;
        }
        boolean superReturn = super.dispatchTouchEvent(ev);
        Log.i(TAG, "[dispatchTouchEvent] return super. = " + superReturn);
        return superReturn;
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                Log.d(TAG, "[onTouchEvent] -> ACTION_DOWN");
                break;
            case MotionEvent.ACTION_MOVE:
                Log.d(TAG, "[onTouchEvent] -> ACTION_MOVE");
                break;
            case MotionEvent.ACTION_UP:
                Log.d(TAG, "[onTouchEvent] -> ACTION_UP");
                break;
            case MotionEvent.ACTION_CANCEL:
                Log.d(TAG, "[onTouchEvent] -> ACTION_CANCEL");
                break;
            default:
                break;
        }
        boolean superReturn = super.onTouchEvent(event);
        Log.i(TAG, "[onTouchEvent] return super. = " + superReturn);
        return superReturn;
    }


}

Java Source Code List

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