gistfile1.txt

package com.example.miaodonghan.hw3_listview;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.LabeledIntent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.SimpleAdapter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MainActivity extends Activity {
    int global_position=0;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final ListView listView = (ListView) findViewById(R.id.listView);
        SimpleAdapter adapter = new SimpleAdapter(this, getData(),
                R.layout.item, new String[]{"img", "text", "n"}, new int[]{R.id.img, R.id.t, R.id.n});

        listView.setAdapter(adapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> arg0, View view, int position, long id) {

                onClickItem(view,position);

            }


        });

        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> arg0, View view, int position, long id) {

                //Toast.makeText(MainActivity.this,listView.getItemAtPosition(position).toString(), Toast.LENGTH_LONG).show();
                global_position = position;
                longClickItems(view, global_position);
                return true;
            }
        });
    }

    public final static String  selected_ID = "will keep this ID";
    String  selected = "will keep this ID";
    //create onClick Event
    public void onClickItem(View v,int position) {

        Intent intent = new Intent(MainActivity.this, Item1Class.class);
        //intent.putExtra(selected_ID, String.valueOf(position));

        Map<String,Object> o = (HashMap<String,Object>)getData().get(position);

        selected = o.get("text").toString();
        intent.putExtra(selected_ID, selected);
        startActivity(intent);
    }


    //create OnLongClick Event
    public void longClickItems(View v, int position){
        final int p = position;
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
        alertDialogBuilder.setMessage("are you sure you really want to delete item" + position + "?");

        alertDialogBuilder.setNegativeButton(R.string.negative,
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        /*
                        Intent negativeActivity = new Intent(getApplicationContext(), com.example.miaodonghan.hw3_listview.MainActivity.class);
                        startActivity(negativeActivity);
                        */
                    }
                });
        alertDialogBuilder.setPositiveButton(R.string.positive,

                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {

                        Intent positveActivity = new Intent(getApplicationContext(), com.example.miaodonghan.hw3_listview.MainActivity.class);

                        Map<String, Object> o = (HashMap<String, Object>) getData().get(p);
                        List<Map<String, Object>> list1 = new ArrayList<Map<String, Object>>();

                        o.remove("text");
                        o.remove("img");

                        getData().remove(o);
                        startActivity(positveActivity);

                    }
                });


        AlertDialog alertDialog = alertDialogBuilder.create();
        alertDialog.show();
    }
    private List<Map<String, Object>> getSubData(int p){
        getData();
        List<Map<String, Object>> list1 = new ArrayList<Map<String, Object>>();
        Map<String, Object> map = new HashMap<String, Object>();

        list1 = getData();

        return list1;
    }

    private List<Map<String, Object>> getData() {

        List<ListItemData> t = new ArrayList<ListItemData>();
        t.add(new ListItemData("Innovation distinguished between a leader and a follower", R.drawable.g));
        t.add(new ListItemData("People don\'t know what they want until you show it to them.", R.drawable.yahoo));
        t.add(new ListItemData("The only way to be truly satisfied is to do what you believe is great work.", R.drawable.f));
        t.add(new ListItemData("That\'s been one of my mantras -- focus and simplicity.", R.drawable.apple));
        t.add(new ListItemData("Simple can be harder than complex: You have to work hard to get your thinking " +
                "clean to make it simple.", R.drawable.amozon));
        t.add(new ListItemData("But it\'s worth it in the end because once you get there, you can move mountains.", R.drawable.ms));
        t.add(new ListItemData("Great things in business are never done by one person, they\'re done by a team of people.", R.drawable.girl2));
        t.add(new ListItemData("You can\'t connect the dots looking forward; you can only connect them looking backward.", R.drawable.cat));
        t.add(new ListItemData("Your work is going to fill a large part of your life", R.drawable.dog));
        t.add(new ListItemData("I\'m the only person I know that\'s lost a quarter of a billion dollars in one year.", R.drawable.ding));
        t.add(new ListItemData("It\'s more fun to be a pirate than join the Navy.", R.drawable.t));
        t.add(new ListItemData("Everything is possible.", R.drawable.nike));


        List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

        for (ListItemData li : t) {
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("img", li.getImageId());
            if(li.getT().length()>32) {
                map.put("text", li.getT().substring(0, 32)+"...");
            }else{
                map.put("text", li.getT());
            }
            list.add(map);
        }
        return list;

    }

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

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}