Android Open Source - AndroidSamples Main Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.example.find_word;
/*from   w w  w .j  av a2s. c o  m*/
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        final GridView gridView = (GridView) findViewById(R.id.letter_grid);
        gridView.setAdapter(new LetterAdapter(getApplicationContext()));
        gridView.setOnTouchListener(new View.OnTouchListener() {
      
          @Override
      public boolean onTouch(View v, MotionEvent event) {
              float currentXPosition = event.getX();
              float currentYPosition = event.getY();
              int position = gridView.pointToPosition((int) currentXPosition, (int) currentYPosition);
              if(event.getAction() == MotionEvent.ACTION_MOVE){
                // Access text in the cell, or the object itself
                System.out.println(gridView.getItemAtPosition(position));
              }
              return true;
      }
    });
        
    }


    @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);
    }

    private class LetterAdapter extends BaseAdapter{

      private Context context;
      
      private Character[] letters = new Character[] {
          'D','H','O','B','S','H','N','E','P','T','U',
          'D','N','A','U','U','E','E','E','M','A','E',
          'W','N','A','I','P','L','U','T','O','N','A',
          'A','G','H','P','L','I','Z','O','O','E','R',
          'R','D','E','I','H','C','T','M','N','W','T',
          'F','H','Y','H','O','P','B','E','O','A','H',
          'D','H','O','B','S','H','N','E','P','T','U',
          'D','N','A','U','U','E','E','E','M','A','E',
          'W','N','A','I','P','L','U','T','O','N','A',
          'A','G','H','P','L','I','Z','O','O','E','R',
          'R','D','E','I','H','C','T','M','N','W','T',
          'D','H','O','B','S','H','N','E','P','T','U',
          'D','N','A','U','U','E','E','E','M','A','E',
          'W','N','A','I','P','L','U','T','O','N','A',
          'A','G','H','P','L','I','Z','O','O','E','R'};
      
      public LetterAdapter(Context context) {
      this.context = context;
    }
      
    @Override
    public int getCount() {
      return letters.length;
    }

    @Override
    public Object getItem(int arg0) {
      return letters[arg0];
    }

    @Override
    public long getItemId(int arg0) {
      return arg0;
    }

    @Override
    public View getView(int position, View view, ViewGroup viewGroup) {
      TextView textView;
      
      if(view == null){
        textView = new TextView(context);
      } else {
        textView = (TextView) view;
      }
      textView.setTag(position);
      textView.setText(String.valueOf(letters[position]));
      
      return textView;
    }
    }
    
}

Java Source Code List

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