Android Open Source - myToDo Main Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.gutspot.apps.android.mytodo;
//w  w w.jav a2 s  .  c o  m
import java.util.ArrayList;
import java.util.List;

import android.app.ActionBar;
import android.app.ActionBar.OnNavigationListener;
import android.app.Activity;
import android.app.DialogFragment;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import com.gutspot.apps.android.mytodo.adapter.ToDoAdapter;
import com.gutspot.apps.android.mytodo.adapter.ToDoAdapter.ToDoItem;
import com.gutspot.apps.android.mytodo.dao.MemoDAO;
import com.gutspot.apps.android.mytodo.dao.ToDoDAO;
import com.gutspot.apps.android.mytodo.dialog.ToDoOptionsDialog;
import com.gutspot.apps.android.mytodo.model.Memo;
import com.gutspot.apps.android.mytodo.model.ToDo;

public class MainActivity extends Activity implements OnNavigationListener {

    private static final String[] categories = new String[] { "??", "???", "??" };

    private int currentCategory = 0;

    private boolean doubleBackToExitPressedOnce = false;

    private ListView toDoListView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        android.util.Log.d("MainActivity", this.toString());

        if (savedInstanceState != null) {
            currentCategory = savedInstanceState.getInt("current_category");
        }

        ActionBar actionBar = this.getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
        ArrayAdapter<String> actionBarSpinnerAdapter = new ArrayAdapter<String>(actionBar.getThemedContext(),
                android.R.layout.simple_list_item_1, android.R.id.text1, categories);
        actionBar.setListNavigationCallbacks(actionBarSpinnerAdapter, this);

        toDoListView = (ListView) this.findViewById(R.id.list_todo);
        updateToDoListView();
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        currentCategory = savedInstanceState.getInt("current_category");
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt("current_category", currentCategory);
    }

    @Override
    protected void onRestart() {
        super.onRestart();

        if (toDoListView != null) {
            updateToDoListView();
        }

        android.util.Log.d("MainActivity.onRestart", this.toString());
    }

    @Override
    public void onBackPressed() {
        if (doubleBackToExitPressedOnce) {
            super.onBackPressed();
            return;
        }

        this.doubleBackToExitPressedOnce = true;
        Toast.makeText(this, "???????myToDo", Toast.LENGTH_SHORT).show();

        new Handler().postDelayed(new Runnable() {

            @Override
            public void run() {
                doubleBackToExitPressedOnce = false;
            }
        }, 2000);
    }

    @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();
        switch (id) {
        case R.id.action_add_todo:
            Intent addToDoMemoIntent = new Intent(this, MemoActivity.class);
            addToDoMemoIntent.putExtra("type", 1);
            startActivity(addToDoMemoIntent);
            return true;

        case R.id.action_search_todo:
            return true;

        default:
            return super.onOptionsItemSelected(item);
        }

    }

    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
        currentCategory = itemPosition;
        updateToDoListView();
        return true;
    }

    public void updateToDoListView() {
        List<ToDoItem> toDoItems = new ArrayList<ToDoItem>();
        ToDoDAO toDoDAO = new ToDoDAO(this);
        MemoDAO memoDAO = new MemoDAO(this);

        List<ToDo> toDos = new ArrayList<ToDo>();
        switch (currentCategory) {
        case 0:
            toDos = toDoDAO.findUnfinishedOrderByCreated();
            break;
        case 1:
            toDos = toDoDAO.findFinishedOrderByCreated();
            break;
        case 2:
            toDos = toDoDAO.findOrderByCreated();
            break;
        default:
        }

        for (ToDo toDo : toDos) {
            ToDoItem toDoItem = new ToDoItem();
            toDoItem.toDo = toDo;
            Memo memo = memoDAO.findFirstByToDoId(toDo.getId());
            toDoItem.digest = memo.getContent();
            toDoItems.add(toDoItem);
        }

        final ToDoAdapter adapter = new ToDoAdapter(this, toDoItems);
        toDoListView.setAdapter(adapter);
        toDoListView.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Activity activity = MainActivity.this;
                ToDoItem item = (ToDoItem) adapter.getItem(position);
                Intent intent = new Intent(activity, ToDoActivity.class);
                intent.putExtra("todo_id", item.toDo.getId());
                activity.startActivity(intent);
            }
        });
        toDoListView.setOnItemLongClickListener(new OnItemLongClickListener() {

            @Override
            public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
                ToDoItem item = (ToDoItem) adapter.getItem(position);
                DialogFragment optionsDialog = ToDoOptionsDialog.newInstance(MainActivity.this, item.toDo.getId());
                optionsDialog.show(MainActivity.this.getFragmentManager(), "dialog");
                return false;
            }

        });
    }

}

Java Source Code List

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