Android Open Source - Naming Pinyin Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.miemie.naming;
/*from w w w  .  ja  v a 2  s  .  co m*/
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;

import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SectionIndexer;
import android.widget.TextView;
import android.widget.Toast;

public class PinyinActivity extends Activity implements OnCheckedChangeListener,
        View.OnClickListener {

    private LayoutInflater mFactory;
    private ListView mList;
    private PinyinAdapter mAdapter;

    private boolean bNoN = false;
    private boolean bNoR = false;
    private boolean bNoZhChSh = false;
    private boolean bNoBackNasals = false;
    private boolean bNoClosedMouth = false;

    private HashSet<String> mUserSelectedPinyins = new HashSet<String>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_pinyin);

        mFactory = LayoutInflater.from(this);

        mAdapter = new PinyinAdapter(this);

        mList = (ListView) findViewById(R.id.pinyin_list);
        mList.setAdapter(mAdapter);
        mList.setFastScrollEnabled(true);

        Intent it = getIntent();
        if (it != null) {
            String temp = it.getStringExtra("pinyin");
            HashSet<String> set = Utils.combineSToSet(temp, "@");
            if (set != null)
                mUserSelectedPinyins = set;
        }

        ActionBar actionBar = getActionBar();
        if (actionBar != null) {
            actionBar.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP, ActionBar.DISPLAY_HOME_AS_UP);
        }

        Button filter = (Button) findViewById(R.id.filter);
        filter.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                showDialog(1);
            }
        });

        Button all = (Button) findViewById(R.id.all);
        all.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                mAdapter.selectAll();
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_pinyin_filter, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == R.id.menu_item_ok) {
            int size = mUserSelectedPinyins.size();
            if (size > 0) {
                String[] selected = mUserSelectedPinyins.toArray(new String[size]);
                
                Intent it = new Intent();
                String temp = Utils.allInOne(selected, "@");
                Log.e("pinyin", temp);
                it.putExtra("pinyin", Utils.allInOne(selected, "@"));
                it.putExtra("size", size);
                setResult(RESULT_OK, it);
                PinyinActivity.this.finish();
                return true;
            }
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    @Deprecated
    protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
        if (id == 1) {
            CheckBox checkBox1 = (CheckBox) dialog.findViewById(R.id.checkBox1);
            checkBox1.setChecked(bNoR);
            CheckBox checkBox2 = (CheckBox) dialog.findViewById(R.id.checkBox2);
            checkBox2.setChecked(bNoN);
            CheckBox checkBox3 = (CheckBox) dialog.findViewById(R.id.checkBox3);
            checkBox3.setChecked(bNoZhChSh);
            CheckBox checkBox4 = (CheckBox) dialog.findViewById(R.id.checkBox4);
            checkBox4.setChecked(bNoBackNasals);
        }
        super.onPrepareDialog(id, dialog, args);
    }

    @Override
    @Deprecated
    protected Dialog onCreateDialog(int id) {

        if (id == 1) {
            View view = LayoutInflater.from(this).inflate(R.layout.dialog_pinyin_filter, null);
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle(R.string.PreferPinyin);
            builder.setView(view);
            final CheckBox check1 = (CheckBox) view.findViewById(R.id.checkBox1);
            check1.setChecked(bNoR);
            check1.setOnCheckedChangeListener(new OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    bNoR = isChecked;
                }
            });
            final CheckBox check2 = (CheckBox) view.findViewById(R.id.checkBox2);
            check2.setChecked(bNoN);
            check2.setOnCheckedChangeListener(new OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    bNoN = isChecked;
                }
            });
            final CheckBox check3 = (CheckBox) view.findViewById(R.id.checkBox3);
            check3.setChecked(bNoZhChSh);
            check3.setOnCheckedChangeListener(new OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    bNoZhChSh = isChecked;
                }
            });
            final CheckBox check4 = (CheckBox) view.findViewById(R.id.checkBox4);
            check4.setChecked(bNoBackNasals);
            check4.setOnCheckedChangeListener(new OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    bNoBackNasals = isChecked;
                }
            });
            final CheckBox check5 = (CheckBox) view.findViewById(R.id.checkBox5);
            check5.setChecked(bNoClosedMouth);
            check5.setOnCheckedChangeListener(new OnCheckedChangeListener() {

                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    bNoClosedMouth = isChecked;
                }
            });

            builder.setPositiveButton(android.R.string.ok, new OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    mAdapter.refreshDataSet();
                }
            });
            return builder.create();
        }

        return super.onCreateDialog(id);
    }

    private class PinyinAdapter extends BaseAdapter implements SectionIndexer {
        private ArrayList<String> mDisplayedPinyins = new ArrayList<String>();
        private final String[] mAllPinyins;
        private Object[] mSectionHeaders;
        private Object[] mSectionPositions;
        private String[] mSelectedPinyins;

        private int mSelectedEndPosition = 0;

        private final String mSelectedPinyinsHeaderString;

        public PinyinAdapter(Context context) {
            super();

            mSelectedPinyinsHeaderString = context.getString(R.string.SelectedPinyinsLabel);

            SQLiteDatabase db = Utils.openDatabase(context);
            Cursor c = db.rawQuery("select * from pinyin", null);

            if (c != null) {
                ArrayList<String> pinyins = new ArrayList<String>();
                if (c.getCount() > 0) {
                    c.moveToFirst();
                    do {
                        pinyins.add(c.getString(1));
                    } while (c.moveToNext());
                }
                mAllPinyins = pinyins.toArray(new String[pinyins.size()]);
                Arrays.sort(mAllPinyins);
                c.close();
            } else {
                mAllPinyins = null;
            }

            db.close();
            refreshDataSet();
        }

        @Override
        public int getCount() {
            return (mDisplayedPinyins != null) ? mDisplayedPinyins.size() : 0;
        }

        @Override
        public Object getItem(int p) {
            if (mDisplayedPinyins != null && p >= 0 && p < mDisplayedPinyins.size()) {
                return mDisplayedPinyins.get(p);
            }
            return null;
        }

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

        private class ViewHolder {
            TextView pinyin;
            CheckBox selected;
            ImageView remove;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            if (mDisplayedPinyins == null || position < 0 || position >= mDisplayedPinyins.size()) {
                return null;
            }
            View view = convertView;

            String pinyin = mDisplayedPinyins.get(position);
            if (pinyin.startsWith("HEADER") || pinyin.equals(mSelectedPinyinsHeaderString)) {
                if (view == null || view.findViewById(R.id.header) == null) {
                    view = mFactory.inflate(R.layout.pinyin_list_header, parent, false);
                }

                TextView tv = (TextView) view.findViewById(R.id.header);
                if (pinyin.startsWith("HEADER")) {
                    tv.setText(pinyin.substring(pinyin.length() - 1, pinyin.length()));
                } else {
                    tv.setText(pinyin);
                }

            } else {
                if (view == null || view.findViewById(R.id.pinyin) == null) {
                    view = mFactory.inflate(R.layout.pinyin_list_item, parent, false);
                    final ViewHolder holder = new ViewHolder();
                    holder.pinyin = (TextView) view.findViewById(R.id.pinyin);
                    holder.selected = (CheckBox) view.findViewById(R.id.pinyin_onoff);
                    holder.remove = (ImageView) view.findViewById(R.id.pinyin_remove);
                    holder.remove.setOnClickListener(new android.view.View.OnClickListener() {

                        @Override
                        public void onClick(View view) {
                            CompoundButton b = holder.selected;
                            onCheckedChanged(b, false);
                            b.setChecked(false);
                            mAdapter.refreshDataSet();
                        }
                    });
                    view.setTag(holder);
                }
                view.setOnClickListener(PinyinActivity.this);

                ViewHolder holder = (ViewHolder) view.getTag();

                if (position < mSelectedEndPosition) {
                    holder.selected.setEnabled(false);
                    holder.selected.setOnCheckedChangeListener(null);
                    holder.remove.setVisibility(View.VISIBLE);
                    view.setEnabled(false);
                } else {
                    holder.selected.setVisibility(View.VISIBLE);
                    holder.remove.setVisibility(View.GONE);
                    holder.selected.setOnCheckedChangeListener(PinyinActivity.this);
                    view.setEnabled(true);
                }

                holder.pinyin.setText(pinyin);
                holder.selected.setTag(pinyin);
                holder.selected.setChecked(mUserSelectedPinyins.contains(pinyin));
            }

            return view;
        }

        public void selectAll() {
            mUserSelectedPinyins.clear();
            for (String pinyin : mAllPinyins) {
                if (!filter(pinyin))
                    mUserSelectedPinyins.add(pinyin);
            }
            refreshDataSet();
        }

        public void refreshDataSet() {

            mDisplayedPinyins.clear();

            mSelectedPinyins = mUserSelectedPinyins
                    .toArray(new String[mUserSelectedPinyins.size()]);
            // Arrays.sort(mSelectedPinyins);

            if (mSelectedPinyins != null && mSelectedPinyins.length > 0) {
                for (String str : mSelectedPinyins) {
                    if (filter(str)) {
                        mUserSelectedPinyins.remove(str);
                    }
                }
            }

            ArrayList<String> sections = new ArrayList<String>();
            ArrayList<Integer> positions = new ArrayList<Integer>();
            // Create section indexer and add headers to the pinyin list
            String val = null;
            int count = 0;

            // if (mSelectedPinyins != null && mSelectedPinyins.length > 0) {
            // sections.add("*");
            // positions.add(count);
            // mDisplayedPinyins.add(mSelectedPinyinsHeaderString);
            // count++;
            // for (String str : mSelectedPinyins) {
            // if (filter(str)) {
            // mUserSelectedPinyins.remove(str);
            // continue;
            // }
            // mDisplayedPinyins.add(str);
            // count++;
            // }
            // mSelectedEndPosition = count;
            // }

            for (String pinyin : mAllPinyins) {
                if (filter(pinyin)) {
                    // Log.e("TEST", "refreshDataSet "+pinyin);
                    continue;
                }

                if (!pinyin.substring(0, 1).equals(val)) {
                    val = pinyin.substring(0, 1);
                    sections.add((new String(val)).toUpperCase());
                    positions.add(count);
                    // Add a header
                    mDisplayedPinyins.add("HEADER" + val);
                    count++;
                }

                mDisplayedPinyins.add(pinyin);
                count++;
            }

            mSectionHeaders = sections.toArray();
            mSectionPositions = positions.toArray();

            notifyDataSetChanged();
        }

        @Override
        public Object[] getSections() {
            return mSectionHeaders;
        }

        @Override
        public int getPositionForSection(int sectionIndex) {
            if (mSectionPositions != null) {
                if (sectionIndex < mSectionPositions.length)
                    return (Integer) mSectionPositions[sectionIndex];
            }
            return 0;
        }

        @Override
        public int getSectionForPosition(int p) {
            if (mSectionPositions != null) {
                for (int i = 0; i < mSectionPositions.length - 1; i++) {
                    if (p >= (Integer) mSectionPositions[i]
                            && p < (Integer) mSectionPositions[i + 1]) {
                        return i;
                    }
                }
                if (p >= (Integer) mSectionPositions[mSectionPositions.length - 1]) {
                    return mSectionPositions.length - 1;
                }
            }
            return 0;
        }

    }

    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        String pinyin = (String) buttonView.getTag();
        if (TextUtils.isEmpty(pinyin)) {
            return;
        }

        if (isChecked) {
            if (!mUserSelectedPinyins.contains(pinyin))
                mUserSelectedPinyins.add(pinyin);
        } else {
            if (mUserSelectedPinyins.contains(pinyin))
                mUserSelectedPinyins.remove(pinyin);
        }
    }

    @Override
    public void onClick(View v) {
        CompoundButton b = (CompoundButton) v.findViewById(R.id.pinyin_onoff);
        boolean checked = b.isChecked();
//        onCheckedChanged(b, checked);
        b.setChecked(!checked);
        mAdapter.refreshDataSet();
    }

    private boolean filter(String pinyin) {
        if (TextUtils.isEmpty(pinyin))
            return false;

        String temp = pinyin.toLowerCase();
        if (bNoBackNasals) {
            if (temp.endsWith("ng")) {
                return true;
            }
        }
        if (bNoN) {
            if (temp.startsWith("n")) {
                return true;
            }
        }
        if (bNoR) {
            if (temp.startsWith("r")) {
                return true;
            }
        }
        if (bNoZhChSh) {
            if (temp.startsWith("zh") || temp.startsWith("ch") || temp.startsWith("sh")) {
                return true;
            }
        }
        if (bNoClosedMouth) {
            if (temp.equalsIgnoreCase("yu")) {
                return true;
            }
        }
        return false;
    }
}

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