Android Open Source - treedo Item List View

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Back to project page treedo.

License

The source code is released under:

DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE Version 2, December 2004 Everyone is permitted to copy and distribute verbatim or modified copies of this license document, ...

Java Source Code

package com.mbonnin.treedo;
// w  w  w .j  a va 2s  .  c o m
import android.content.Context;
import android.graphics.Color;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;

/**
 * Created by martin on 21/08/14.
 */
public class ItemListView extends LinearLayout {
    private static final String TAG = "ItemListView";
    private Listener mListener;
    private View mEmptyView;
    private int mType;
    private ItemAdapter mAdapter;
    private RecyclerView mRecyclerView;
    private Item mItem;
    private EditText mEditText;

    private void init() {
        setOrientation(VERTICAL);
        setBackgroundColor(Color.WHITE);
    }

    public ItemListView(Context context) {
        super(context);
        init();
    }

    public ItemListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public ItemListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void onAddItem() {
        if (mEditText.getText().equals("")) {
            mEditText.clearFocus();

            InputMethodManager inputManager =
                    (InputMethodManager) getContext().
                            getSystemService(Context.INPUT_METHOD_SERVICE);
            inputManager.hideSoftInputFromWindow(
                    mEditText.getWindowToken(),
                    InputMethodManager.HIDE_NOT_ALWAYS);

            return;
        }

        Item item = new Item();
        item.text = mEditText.getText().toString();
        item.checked = false;
        item.isAFolder = mType == Item.TYPE_FOLDER;

        mAdapter.add(item);
        mEditText.setText("");
    }

    private void createListView(int type, boolean focus) {
        if (mEmptyView != null) {
            removeView(mEmptyView);
            mEmptyView = null;
        }

        mType = type;

        final View footer = LayoutInflater.from(getContext()).inflate(R.layout.listview_footer, null);
        mEditText = (EditText)footer.findViewById(R.id.edit_text);
        mEditText.setHint(mType == Item.TYPE_FOLDER ? R.string.new_folder : R.string.new_item);
        mEditText.setImeOptions(EditorInfo.IME_ACTION_DONE);
        mEditText.setSingleLine(true);
        mEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                if (actionId == EditorInfo.IME_ACTION_DONE) {
                    onAddItem();
                }
                return true;
            }
        });
        final Button button = (Button)footer.findViewById(R.id.add_button);
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                onAddItem();
            }
        });

        LinearLayout.LayoutParams layoutParams;

        layoutParams = new LinearLayout.LayoutParams(0,0);
        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
        layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
        layoutParams.weight = 1;

        mAdapter.setOnFolderClickedListener(new ItemAdapter.OnFolderClickedListener() {
            @Override
            public void onFolderClicked(Item item) {
                mListener.onFolderClicked(item);
            }
        });

        mRecyclerView = new RecyclerView(getContext());
        mRecyclerView.setAdapter(mAdapter);
        RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getContext());
        mRecyclerView.setLayoutManager(layoutManager);
        mRecyclerView.addItemDecoration(new ItemDecorator());
        mAdapter.setOnFolderClickedListener(new ItemAdapter.OnFolderClickedListener() {
            @Override
            public void onFolderClicked(Item item) {
                mListener.onFolderClicked(item);
            }
        });
        addView(mRecyclerView, layoutParams);

        layoutParams = new LinearLayout.LayoutParams(0,0);
        layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
        layoutParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
        layoutParams.weight = 0;
        addView(footer, layoutParams);

        if (focus) {
            mEditText.requestFocus();
            InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.showSoftInput(mEditText, InputMethodManager.SHOW_IMPLICIT);
        }
    }

    public void setItem(final Item item) {
        mItem = item;
        mAdapter = new ItemAdapter(getContext(), item);

        if (item.children.size() == 0) {
            mEmptyView = LayoutInflater.from(getContext()).inflate(R.layout.listview_empty, null);
            Button subFoldersButton = (Button) mEmptyView.findViewById(R.id.subfolders_button);
            Button itemButton = (Button) mEmptyView.findViewById(R.id.items_button);

            subFoldersButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    createListView(Item.TYPE_FOLDER, true);
                }
            });

            itemButton.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    createListView(Item.TYPE_ITEM, true);
                }
            });

            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
            layoutParams.weight = 1;

            addView(mEmptyView, layoutParams);
        } else {
            int type = item.children.get(0).isAFolder ? Item.TYPE_FOLDER : Item.TYPE_ITEM;
            createListView(type, false);
        }
    }

    public void setListener(Listener listener) {
        mListener = listener;
    }

    public String getTitle() {
        return mItem.text;
    }

    public void setEditMode(boolean b) {
        Log.d(TAG, "setEditMode not implemented");
    }

    public static abstract class Listener {
        public abstract void onFolderClicked(Item item);
    }

    public boolean onTouchEvent(MotionEvent event) {
        // always eat the events so that we do not click the view below
        return true;
    }
}

Java Source Code List

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