完整Android记事本，备忘录（包含闹铃提醒功能）源码

package com.note; import java.util.Calendar; import android.app.Activity; import android.app.AlarmManager; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.app.DatePickerDialog; import android.app.PendingIntent; import android.app.TimePickerDialog; import android.app.TimePickerDialog.OnTimeSetListener; import android.content.DialogInterface; import android.content.Intent; import android.database.sqlite.SQLiteDatabase; import android.graphics.Color; import android.os.Bundle; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnLongClickListener; import android.widget.Button; import android.widget.DatePicker; import android.widget.EditText; import android.widget.TimePicker; import android.widget.Toast; public class ActivityMain extends Activity { private EditText etName; private EditText etMain, etTime; private Button btnCommit; private Button btnCancel; private SQLiteDatabase sdb; private ActivityManager am; private int year, month, day, hours, minute, second; private Calendar c; private PendingIntent pi; private AlarmManager alm; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); am = ActivityManager.getInstance(); am.addActivity(this); etName = (EditText) findViewById(R.id.noteName); etMain = (EditText) findViewById(R.id.noteMain); btnCommit = (Button) findViewById(R.id.btnCommit); btnCancel = (Button) findViewById(R.id.btnCancel); etTime = (EditText) findViewById(R.id.noteTime); SqliteDBConnect sd = new SqliteDBConnect(ActivityMain.this); sdb = sd.getReadableDatabase(); etTime.setText(am.returnTime()); // etTime.setEnabled(false); etTime.setTextColor(Color.RED); etTime.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { c = Calendar.getInstance(); year = c.get(Calendar.YEAR); month = c.get(Calendar.MONTH); day = c.get(Calendar.DAY_OF_MONTH); hours = c.get(Calendar.HOUR); minute = c.get(Calendar.MINUTE); second = c.get(Calendar.SECOND); DatePickerDialog dpd = new DatePickerDialog(ActivityMain.this, new DatePickerDialog.OnDateSetListener() { @Override public void onDateSet(DatePicker view, int y, int monthOfYear, int dayOfMonth) { String[] time = { "", hours + ":" + minute + ":" + second }; try { String[] time2 = etTime.getText() .toString().trim().split(" "); if (time2.length == 2) { time[1] = time2[1]; } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } String mo = "", da = ""; if (monthOfYear < 10) { mo = "0" + (monthOfYear + 1); } else { mo = monthOfYear + ""; } if (dayOfMonth < 10) { da = "0" + dayOfMonth; } else { da = dayOfMonth + ""; } etTime.setText(y + "-" + mo + "-" + da + " " + time[1]); } }, year, month, day); dpd.setTitle("设置日期"); dpd.show(); } }); etTime.setOnLongClickListener(new OnLongClickListener() { @Override public boolean onLongClick(View v) { c = Calendar.getInstance(); year = c.get(Calendar.YEAR); month = c.get(Calendar.MONTH); day = c.get(Calendar.DAY_OF_MONTH); hours = c.get(Calendar.HOUR); minute = c.get(Calendar.MINUTE); second = c.get(Calendar.SECOND); TimePickerDialog tpd = new TimePickerDialog(ActivityMain.this, new OnTimeSetListener() { @Override public void onTimeSet(TimePicker view, int hourOfDay, int minute) { String[] time = { year + "-" + month + "-" + day, "" }; try { time = etTime.getText().toString().trim() .split(" "); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } String ho = "", mi = ""; if (hourOfDay < 10) { ho = "0" + hourOfDay; } else { ho = hourOfDay + ""; } if (minute < 10) { mi = "0" + minute; } else { mi = minute + ""; } etTime.setText(time[0] + " " + ho + ":" + mi); } }, hours, minute, true); tpd.setTitle("设置时间"); tpd.show(); return true; } }); btnCommit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int n = testTime(); if (n == 0) { return; } AlertDialog.Builder adb = new Builder(ActivityMain.this); adb.setTitle("保存"); adb.setMessage("Are you sure to Save?"); adb.setPositiveButton("保存", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { baocunNote(); } }); adb.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(ActivityMain.this, "Don't Save", Toast.LENGTH_SHORT).show(); } }); adb.show(); } }); btnCancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder adb = new Builder(ActivityMain.this); adb.setTitle("提示"); adb.setMessage("Are you sure don't Save?"); adb.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Intent intent = new Intent(); intent.setClass(ActivityMain.this, MainShow.class); startActivity(intent); } }); adb.setNegativeButton("取消", null); adb.show(); } }); etName.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub if (etName.getText().toString().trim().equals("请输入记事名称")) { etName.setText(""); } } }); etName.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if ("".equals(etName.getText().toString().trim())) { etName.setText(R.string.etnameinit); } } }); etMain.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub if (etMain.getText().toString().trim().equals("请输入记事内容")) { etMain.setText(""); } } }); etMain.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { // TODO Auto-generated method stub if ("".equals(etMain.getText().toString().trim())) { etMain.setText(R.string.etmaininit); } } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, 1, 1, "关于"); menu.add(0, 2, 2, "设置闹铃声"); menu.add(0, 3, 3, "退出"); return super.onCreateOptionsMenu(menu); } @Override public boolean onMenuItemSelected(int featureId, MenuItem item) { switch (item.getItemId()) { case 1: AlertDialog.Builder adb = new Builder(ActivityMain.this); adb.setTitle("关于我们"); adb.setMessage("湖南工业大学\n\t Android团队制作"); adb.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(ActivityMain.this, "Thanks", Toast.LENGTH_SHORT).show(); } }); adb.show(); break; case 2: Intent intent = new Intent(); intent.setClass(ActivityMain.this, SetAl