Dialog(对话框)的使用_.dialogcart是干嘛的

Dialog是一种能遮盖住其他控件操作特殊控件，一般用于确认用户操作或者有紧急的信息需要回馈给用户，会需要使用到Dialog，下面是一些关于Dialog的使用。

package com.example.dialogdemo;
 
import java.util.Calendar;
 
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.DatePicker;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.TimePicker;
import android.widget.Toast;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.ProgressDialog;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnMultiChoiceClickListener;
 
public class MainActivity extends Activity implements OnClickListener, Runnable {
	ProgressDialog pDialog;
 
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		TextView tv = (TextView) findViewById(R.id.dailog_tv);
		tv.setOnClickListener(this);
	}
 
	/**
	 * AlertDialog
	 */
	// 消息对话框
	public void messageDialog() {
		// 提示对话框的建立者，新建AlertDialog内部类Buileder的对象
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		// Builder builder = new Builder(this);//也可以直接new Bulider对象
		// 设置标题，没有标题就没有图标
		builder.setTitle("消息");
		// 设置图标
		builder.setIcon(R.drawable.ic_launcher);
		// 设置对话框点击其他位置不会被取消
		builder.setCancelable(false);
		// 设置左边按键。4.0以后消极在左边。Negative
		builder.setNegativeButton("消极", new DialogInterface.OnClickListener() {
 
			/**
			 * @parm dialog-->当前按钮所在的对话框
			 * @parm which-->判断是那个按键，因为监听的只是消极，所以在这没用 如果设置了两个一样的 按键，会被后一个覆盖
			 */
			@Override
			public void onClick(DialogInterface dialog, int which) {
				dialog.dismiss();
			}
		});
		// 设置右边按键，Positive
		builder.setPositiveButton("积极", new DialogInterface.OnClickListener() {
 
			@Override
			public void onClick(DialogInterface dialog, int which) {
			}
		});
		// 设置中间按键，Neutral
		builder.setNeutralButton("中立", new DialogInterface.OnClickListener() {
 
			@Override
			public void onClick(DialogInterface dialog, int which) {
			}
		});
 
		// 设置消息
		builder.setMessage("天降正义");
		// 通过builder.create()，新建AlertDialog对象
		AlertDialog dialog = builder.create();
		dialog.show();
	}
 
	// 列表对话框
	public void itemDialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("列表");
 
		final String[] items = { "呵呵", "哈哈", "嘻嘻", "dj", "ds", "sd" };
		// 设置列表
		builder.setItems(items, new DialogInterface.OnClickListener() {
 
			/**
			 * @parm which-->当前所选中的元素
			 */
			@Override
			public void onClick(DialogInterface dialog, int which) {
				Log.e("items[" + which + "]", items[which]);
			}
		});
		AlertDialog dialog = builder.create();
		dialog.show();
	}
 
	// 单选对话框
	public void singleDialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("单选");
		// 单选元素
		final String[] items = { "呵呵", "哈哈", "嘻嘻", "dj", "ds", "sd" };
		// 设置单选元素
		/*
		 * items单选的元素， checkedItem选中的元素的角标，默认选中的元素的角标，若要设置无选中则设置为-1
		 */
		builder.setSingleChoiceItems(items, -1,
				new DialogInterface.OnClickListener() {
 
					@Override
					public void onClick(DialogInterface dialog, int which) {
						Log.e("items[" + which + "]", items[which]);
					}
				});
		// 包含创建对话框和显示对话框,可以不用创建Dialog对象
		builder.show();
	}
 
	// 多选对话框
	public void multilDialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("多选");
		// 多选的元素
		final String[] items = { "呵呵", "哈哈", "嘻嘻", "dj", "ds", "sd" };
		// 选中的元素,与多选的元素对应，被选中则为true
		final boolean[] checkedItems = new boolean[items.length];
		// 设置多选的元素
		builder.setMultiChoiceItems(items, checkedItems,
				new OnMultiChoiceClickListener() {
 
					/**
					 * @parm which-->选中的元素
					 * @parm isChecked-->该元素是否被选中
					 */
					@Override
					public void onClick(DialogInterface dialog, int which,
							boolean isChecked) {
						Toast.makeText(MainActivity.this,
								items[which] + "======" + isChecked,
								Toast.LENGTH_LONG).show();
						AlertDialog.Builder builders = new AlertDialog.Builder(
								MainActivity.this);
						builders.setNegativeButton("取消",
								new AlertDialog.OnClickListener() {
 
									@Override
									public void onClick(DialogInterface dialog,
											int which) {
										Log.e("取消", "取消了选择");
									}
								});
						builders.setPositiveButton("确定",
								new AlertDialog.OnClickListener() {
 
									@Override
									public void onClick(DialogInterface dialog,
											int which) {
									}
								});
						builders.show();
					}
				});
		builder.setNegativeButton("确认", new DialogInterface.OnClickListener() {
 
			@Override
			public void onClick(DialogInterface dialog, int which) {
				for (int i = 0; i < checkedItems.length; i++) {
					if (checkedItems[i]) {
						Log.e(i + ":", items[i]);
					}
				}
			}
		});
		builder.show();
	}
 
	/**
	 * 日期对话框
	 */
	public void dateDialog() {
		final Calendar calendar = Calendar.getInstance();
		final DatePickerDialog datePickerDialog = new DatePickerDialog(this,
				new OnDateSetListener() {
					/**
					 * @parm view 监听的对话框中显示的日期的改变
					 * @parm year 对话框消失前所显示的年份
					 * 。。。
					 */
					@Override
					public void onDateSet(DatePicker view, int year,
							int monthOfYear, int dayOfMonth) {
						System.out.println("11111111111111");
						calendar.set(Calendar.YEAR, year);
						calendar.set(Calendar.MONTH, monthOfYear);
						calendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
						updateDate(calendar);
						Toast.makeText(MainActivity.this, "hehe......",
								Toast.LENGTH_LONG).show();
						System.out.println("---------------");
					}
				}, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
				calendar.get(Calendar.DAY_OF_MONTH));
		//设置按键,会先执行
		datePickerDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "消极", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
//				datePickerDialog.show();
			}
		});
		datePickerDialog.show();
	}
 
	/**
	 * 更新日期
	 */
	public void updateDate(Calendar calendar) {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("选择的日期");
		builder.setMessage(calendar.get(Calendar.YEAR) + "年"
				+ (calendar.get(Calendar.MONTH) + 1) + "月"
				+ calendar.get(Calendar.DAY_OF_MONTH) + "日");
		builder.show();
	}
 
	/**
	 * 时间对话框
	 */
	public void timeDialog() {
		final Calendar calendar = Calendar.getInstance();
		TimePickerDialog timePickerDialog = new TimePickerDialog(this,
				new OnTimeSetListener() {
 
					@Override
					public void onTimeSet(TimePicker view, int hourOfDay,
							int minute) {
						calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
						calendar.set(Calendar.MINUTE, minute);
						updateTime(calendar);
					}
				}, calendar.get(Calendar.HOUR_OF_DAY),
				calendar.get(Calendar.MINUTE), true/*24小时制*/);
		timePickerDialog.show();
	}
 
	/**
	 * 更新日期
	 */
	public void updateTime(Calendar calendar) {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("选择的时间");
		builder.setMessage(calendar.get(Calendar.HOUR_OF_DAY) + "时"
				+ calendar.get(Calendar.MINUTE) + "分");
		builder.show();
	}
 
	/**
	 * 自定义对话框
	 */
	public void myDialog() {
		MyDialog myDialog = new MyDialog(this);
		myDialog.show();
	}
	
	/**
	 * 局部自定义，自定义ListView、按键、消息内容等
	 */
	public void myAlertDialog() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		//1用listView作为视图
//		ListView listView = new ListView(this);
		//2用布局过滤器设置视图
		LayoutInflater li = LayoutInflater.from(this);
		View view = li.inflate(R.layout.dialog, null);
		//3.设置Activity作为对话框
		
		//列表内容适配器设置
		//设置对话框的视图
//		builder.setView(listView);
		builder.setView(view);
		
	}
	
	/**
	 * Activity作为对话框
	 */
	public void dialogActivity() {
		Intent intent = new Intent(this, DialogActivity.class);
		startActivity(intent);
	}
	
	
	/**
	 * ProgressDialog
	 */
	public void progressDialog() {
		pDialog = new ProgressDialog(this);
		/*
		 * 设置风格精确进度条:ProgressDialog.STYLE_HORIZONTAL
		 * 模糊进度条:ProgressDialog.STYLE_SPINNER
		 */
		// 精确进度条
		pDialog.setProgressStyle(1);
		// 设置最大值
		pDialog.setMax(50);
 
		// 设置二级进度
		// pDialog.setSecondaryProgress(30);
		// 设置进度图片
		// pDialog.setProgressDrawable(d)
		// 模糊进度条
		// pDialog.setProgressStyle(0);
		// 设置消息
		pDialog.setMessage("请稍后。。。");
		// 设置进度条的图片
		// pDialog.setIndeterminateDrawable(d)
		// 设置对话框的按钮
		pDialog.setButton(DialogInterface.BUTTON_NEUTRAL/* 按键形式 */, "确认",
				new DialogInterface.OnClickListener() {
 
					@Override
					public void onClick(DialogInterface dialog, int which) {
 
					}
				});
		pDialog.show();
		// 设置当前进度,要在show之后
		// pDialog.setProgress(20);
 
		// 进度条加载完就消失
		// if (pDialog.getProgress() == pDialog.getMax()) {
		// pDialog.dismiss();
		// }
		Thread thread = new Thread(this);
		thread.start();
	}
 
	@Override
	public void onClick(View v) {
		if (v.getId() == R.id.dailog_tv) {
			// messageDialog();
			// itemDialog();
			// singleDialog();
			// multilDialog();
			// progressDialog();
//			 dateDialog();
//			timeDialog();
			dialogActivity();
		}
	}
 
	@Override
	public void run() {
		int temp = 0;
		while (!(pDialog.getProgress() == pDialog.getMax())) {
			temp += 10;
			try {
				Thread.sleep(1000);
				pDialog.setProgress(temp);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		pDialog.dismiss();
	}
 
}

将Activity作为Dialog的形式显示，只需要将Activity的清单中设置属性为Dialog即可，如下

android:theme="@android:style/Theme.Dialog"