Android实现睡眠设置

最近部门主管给了我一个小任务。将基于android2.3系统的手机上的收音机进行改装,其中有个设置Android睡眠设置的小功能。帖上来分享分享!先贴图。

SleepTime1

设置睡眠时间

Activity代码

package com.huanghua;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class SleepTime extends Activity implements OnClickListener {

	public static final int GIALOG_SLEEP = 1;
	public static final int COME_SLEEP = 2;
	private Button btn = null;
	private int mSleep = 0;

	private Handler handler = null;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		btn = (Button) findViewById(R.id.btn);
		btn.setOnClickListener(this);
	}

	@Override
	public void onClick(View v) {
		if (v == btn) {
			showDialog(GIALOG_SLEEP);
		}
	}

	@Override
	protected Dialog onCreateDialog(int id) {
		Dialog dia = null;
		switch (id) {
		case GIALOG_SLEEP:
			Builder b = new AlertDialog.Builder(this);
			b.setIcon(R.drawable.ic_menu_sleep);
			b.setTitle("选择睡眠时间");
			b.setSingleChoiceItems(R.array.sleeptime, mSleep,
					new DialogInterface.OnClickListener() {
						// 在对话框中的按钮被点击时,这个方法将被调用
						@Override
						public void onClick(DialogInterface dialog, int which) {
							mSleep = which;
						}
					})
					.setPositiveButton("设置",
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									setSleepTime(mSleep);
								}
							})
					.setNegativeButton("取消",
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									removeDialog(GIALOG_SLEEP);
								}
							})
					.setOnCancelListener(
							new DialogInterface.OnCancelListener() {
								// 对话框被取消时的回调方法
								@Override
								public void onCancel(DialogInterface dialog) {
									removeDialog(GIALOG_SLEEP);
								}
							});
			dia = b.create();
			break;
		case COME_SLEEP:
			dia = new AlertDialog.Builder(this)
					.setTitle("提示")
					.setMessage("睡眠时间到!是否退出?")
					.setPositiveButton("确定",
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									finish();
								}
							})
					.setNegativeButton("取消",
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									removeDialog(COME_SLEEP);
								}
							}).create();
			break;
		default:
			break;
		}
		return dia;
	}

	/**
	 * 设置睡眠时间
	 * 
	 * @param time
	 */
	private void setSleepTime(int time) {
		this.mSleep = time;
		if (this.handler != null) {
			// 将mRunnable从消息队列中移除
			this.handler.removeCallbacks(mRunnable);
		}
		if (this.mSleep != 0) {
			handler = new Handler();
			if (this.mSleep < 3)="" {="" 在指定的时间流逝之后,将mrunnable加入消息队列="" this.handler.postdelayed(mrunnable,="" this.msleep="" *="" 1000="" *="" 60="" *="" 30);="" }="" else="" {="" this.handler.postdelayed(mrunnable,="" 4="" *="" 1000="" *="" 60="" *="" 30);="" }="" }="" log.i("mydebug",="" "show="" sleep="" dialog="" msleep=" + this.mSleep);
	}

	/**
	 * 睡眠时间到了时调用该线程
	 */
	private Runnable mRunnable = new Runnable() {
		@Override
		public void run() {
			// 这里面的内容可以自己去实现,看需求了,可以是关机,也可以是关程序。
			showDialog(COME_SLEEP);
		}
	};

}

Strings.xml代码