Android Open Source - 101AndroidApps Buttons Fragment

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License

The source code is released under:

Licenced under the Creative Commons Attribution 4.0 licence. For full text see http://creativecommons.org/licenses/by/4.0/

Java Source Code

package com.hulzenga.ioi.android.app_007;
/*from w  ww .  j av  a2s .c  o  m*/
import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TableLayout.LayoutParams;

import com.hulzenga.ioi.android.R;

import java.util.ArrayList;
import java.util.List;

public class ButtonsFragment extends Fragment {

  private static final String TAG = "FRAGMENT_BUTTONS";

  private LinearLayout            mButtonContainer;
  private OptionSelectionListener mOptionSelectionListener;

  public interface OptionSelectionListener {
    public void selectWiki(int selection);
  }

  public List<Button> setNumberOfButtons(int numberOfButtons) {

    if (mButtonContainer != null) {
      mButtonContainer.removeAllViews();
    } else {
      Log.e(TAG, "setNumberOfButtons() was called before View was created");
      return null;
    }

    List<Button> buttons = new ArrayList<Button>();
    LayoutParams params = new TableLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 1.0f);

    for (int i = 0; i < numberOfButtons; i++) {
      final int index = i;
      Button button = new Button(mButtonContainer.getContext());
      button.setLayoutParams(params);
      button.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

          mOptionSelectionListener.selectWiki(index);
        }
      });

      buttons.add(button);
      mButtonContainer.addView(button);
    }

    mButtonContainer.requestLayout();
    return buttons;
  }

  @Override
  public void onAttach(Activity activity) {
    super.onAttach(activity);

    try {
      mOptionSelectionListener = (OptionSelectionListener) activity;
    } catch (ClassCastException e) {
      Log.e(TAG, activity.toString() + " must implement OptionSelectionListener");
    }
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View fragmentView = inflater.inflate(R.layout.app_007_fragment_buttons, container, false);
    mButtonContainer = (LinearLayout) fragmentView.findViewById(R.id.app_007_optionButtonLayout);

    return fragmentView;
  }

}

Java Source Code List

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