android 日程提醒 app源码

【实例截图】

【核心代码】

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        //显示已有的数据
        final ListView listView = (ListView) findViewById(R.id.listview);
        final DBHelper helper = new DBHelper(MainActivity.this);
        SimpleAdapter adapter = new SimpleAdapter(MainActivity.this, helper.queryAll(), R.layout.item,
                new String[]{"id", "date", "schedule"},
                new int[]{R.id.schedule_id, R.id.schedule_date, R.id.schedule_text});
        listView.setAdapter(adapter);
        //设置长按事件
        listView.setOnCreateContextMenuListener(listviewLongPress);
        // 设置点击进入详情页
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Intent intent = new Intent(MainActivity.this, TextActivity.class);

                List<String> listdata;
                List<String> listtext;
                listdata = helper.queryDate();
                listtext = helper.querySchedule();
                String date = listdata.get(position)   "";
                String schedule = listtext.get(position)   "";

                intent.putExtra("date", date);
                intent.putExtra("schedule", schedule);
                startActivity(intent);
            }
        });


        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                addNewSchedule();
            }
        });

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);