常用对话框的使用

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Android 基础

android 单选对选对话款进度条对话框日期对话框时间对话框

Activities提供了一种方便管理的创建、保存、回复的对话框机制，例如 onCreateDialog(int), onPrepareDialog(int, Dialog), showDialog(int), dismissDialog(int)等方法，如果使用这些方法的话，Activity将通过getOwnerActivity()方法返回该Activity管理的对话框(dialog).

1,提示框;

  <Button
        android:id="@+id/alert"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="show"
        android:text="提示对话框" />

2,列表对话框

    <Button
        android:id="@+id/list"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="show"
        android:text="列表对话框" />

3,单选对话框

    <Button
        android:id="@+id/radio"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="show"
        android:text="单选对话框" />

4,多选对话框

    <Button
        android:id="@+id/multi"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="show"
        android:text="多选对话框" />

提示框,列表框,单选框,多选框写在一个java类中实现其效果

public class MainActivity extends Activity {

	private AlertDialog dialog;
	int selected, temp = 0;

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

	}

	// 按钮的事件方法
	public void show(View v) {
		// 获得被点击的按钮的id
		int id = v.getId();
		switch (id) {
		case R.id.alert://提示框
			this.showDialog(10);
			break;
		case R.id.list://列表框
			this.showDialog(20);
			break;
		case R.id.radio://单选框
			this.showDialog(30);
			break;
		case R.id.multi://多选框
			this.showDialog(40);
			break;
		}

	}

	@Override
	protected Dialog onCreateDialog(int id, Bundle args) {
		switch (id) {
		case 10://提示框
			// 创建一个用来构建对话框的对象
			Builder build = new AlertDialog.Builder(this);
			build.setTitle("提示对话框");
			build.setIcon(android.R.drawable.btn_dialog);
			build.setMessage("这里是提示的消息内容");

			OnClickListener listener = new OnClickListener() {
				@Override
				public void onClick(DialogInterface dialog, int which) {
					switch (which) {
					case DialogInterface.BUTTON_POSITIVE:
						Toast.makeText(MainActivity.this, "点击的是确定",
								Toast.LENGTH_SHORT).show();
						break;
					case DialogInterface.BUTTON_NEGATIVE:
	     Toast.makeText(MainActivity.this, "点击的取                         消",Toast.LENGTH_SHORT).show();
						break;

					case DialogInterface.BUTTON_NEUTRAL:
				Toast.makeText(MainActivity.this, "点击的是忽略",
							Toast.LENGTH_SHORT).show();
						break;

					}

				}

			};

			// 给对话框添加按钮
			build.setPositiveButton("确定", listener);
			build.setNegativeButton("取消", listener);
			build.setNeutralButton("忽略", listener);
			AlertDialog dialog = build.create();
			return dialog;

		case 20://列表框
			Builder build1 = new AlertDialog.Builder(this);
			build1.setTitle("列表对话框");
			build1.setIcon(android.R.drawable.btn_radio);
			final String[] items = { "打开", "关闭", "保存" };
			OnClickListener listener1 = new OnClickListener() {
				@Override
				public void onClick(DialogInterface dialog, int which) {

	Toast.makeText(MainActivity.this, "选中的是：" + items[which],
							Toast.LENGTH_SHORT).show();
				}
			};

			// 添加选项列表
			build1.setItems(items, listener1);
			return build1.create();

		case 30://单选框

			Builder build2 = new AlertDialog.Builder(this);
			build2.setTitle("单选对话框");
			build2.setIcon(android.R.drawable.btn_radio);

			final String[] items2 = { "在线", "隐身", "忙碌", "离线" };

			OnClickListener listener2 = new OnClickListener() {
				@Override
			public void onClick(DialogInterface dialog, int which) {
					if (which >= 0) {
						temp = which;
					} else {
			if (which == DialogInterface.BUTTON_POSITIVE) {
							selected = temp;
	Toast.makeText(MainActivity.this,"选中的是：" +items2[selected],
							Toast.LENGTH_SHORT).show();
		} else if (which == DialogInterface.BUTTON_NEGATIVE) {
							dialog.cancel();
						}

					}

				}
			};
			build2.setSingleChoiceItems(items2, selected, listener2);

			build2.setPositiveButton("确定", listener2);
			build2.setNegativeButton("取消", listener2);
			build2.setCancelable(false);
			return build2.create();

		case 40://多选框
			Builder build3 = new AlertDialog.Builder(this);
			build3.setTitle("多选对话框");
			build3.setIcon(android.R.drawable.btn_radio);

			final String[] items3 = { "Java", "C++", "C#", "Swift" };
			final boolean[] checkedItems = { true, true, false, false };

			// 多选按钮的监听器
OnMultiChoiceClickListener listener33= new OnMultiChoiceClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which,
						boolean isChecked) {
					checkedItems[which] = isChecked;
				}

			};

	build3.setMultiChoiceItems(items3, checkedItems, listener33);

			OnClickListener listener3 = new OnClickListener() {
				@Override
			public void onClick(DialogInterface dialog, int which) {

			if (which == DialogInterface.BUTTON_POSITIVE) {
						String str = "";
						for (int i = 0; i < items3.length; i++) {
							if (checkedItems[i]) {
								str += items3[i] + ",";
							}
						}

	             Toast.makeText(MainActivity.this, "选中的是：" + str,
								Toast.LENGTH_SHORT).show();
					}

				}
			};
			build3.setPositiveButton("确定", listener3);
			build3.setCancelable(false);
			return build3.create();
		}

		return null;
	}
}

5,日期对话框

      <Button  
        android:id="@+id/date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="日期对话框"
        android:onClick="show"
        />

6,时间对话框

        <Button  
        android:id="@+id/times"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="时间对话框"
        android:onClick="show"
        />

7,进度条对话框

    <Button  
        android:id="@+id/progressbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="进度条对话框"
        android:onClick="show"
        />

8,进度条对话框

    <Button  
        android:id="@+id/progress2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="模糊对话框"
        android:onClick="show"
        />

日期,时间,进度条对话框的代码实现;

public class MainActivity extends Activity {

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

	}

	// 按钮的方法
	public void show(View v) {
		int id = v.getId();
		switch (id) {
		case R.id.progressbtn:
			this.showDialog(10);
			break;
		case R.id.progress2:
			this.showDialog(20);
			break;

		case R.id.date:
			this.showDialog(30);
			break;
		case R.id.times:
			this.showDialog(40);
			break;
		}
	}

	// 对话框的方法
	@Override
	protected Dialog onCreateDialog(int id, Bundle args) {
		switch (id) {
		case 10:
			// 进度条
			ProgressDialog pdialog = new ProgressDialog(this);
			pdialog.setCancelable(false);
			pdialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
			pdialog.setMax(100);
			pdialog.setSecondaryProgress(30);
			return pdialog;
		case 20:
			ProgressDialog pdialog2 = new ProgressDialog(this);
			pdialog2.setTitle("对话框");
			pdialog2.setMessage("正在下载..");
			pdialog2.setCancelable(false);
			pdialog2.setProgressStyle(ProgressDialog.STYLE_SPINNER);
			return pdialog2;

		case 30:
			// 日期的监听器
			OnDateSetListener callBack = new OnDateSetListener() {

				@Override
				public void onDateSet(DatePicker view, int year,
						int monthOfYear, int dayOfMonth) {
					Toast.makeText(MainActivity.this,
							year + "" + monthOfYear + "" + dayOfMonth,
							Toast.LENGTH_SHORT).show();

				}
			};
			Calendar calender = Calendar.getInstance();// 获得系统的日期 可以将该方法申明在最外边
			int year = calender.get(Calendar.YEAR);
			int month = calender.get(Calendar.MONTH);
			int day = calender.get(Calendar.DAY_OF_MONTH);
			DatePickerDialog dateDialog = new DatePickerDialog(this, callBack,
					year, month, day);
			return dateDialog;

		case 40:
			OnTimeSetListener callBacks = new OnTimeSetListener() {
				@Override
				public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
					Toast.makeText(MainActivity.this, hourOfDay + "" + minute,
							Toast.LENGTH_SHORT).show();
				}
			};
			Calendar calendertime = Calendar.getInstance();// 获得时间
			int hour = calendertime.get(Calendar.HOUR_OF_DAY);
			int minute = calendertime.get(Calendar.MINUTE);
			TimePickerDialog timeDialog = new TimePickerDialog(this, callBacks,
					hour, minute, true);
			return timeDialog;

		}

		return null;
	}

	// 条用已经创建的对话框的方法
	@Override
	protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
		switch (id) {
		case 10:
			ProgressDialog dialog2 = (ProgressDialog) dialog;
			new ProThread(dialog2).start();
			break;

		case 20:
			ProgressDialog dialog3 = (ProgressDialog) dialog;
			new ProThread2(dialog3).start();
			break;
		case 30:
			// 将对话框转成时间对话框
			DatePickerDialog dialogdate = (DatePickerDialog) dialog;
			// 获得系统的日期时间
			Calendar calender = Calendar.getInstance();// 获得系统的日期
			// 获得日期
			int year = calender.get(Calendar.YEAR);
			int month = calender.get(Calendar.MONTH);
			int day = calender.get(Calendar.DAY_OF_MONTH);
			// 还原系统的日期
			dialogdate.getDatePicker().init(year, month, day, dialogdate);
			break;
		}

	}
	
	//系统默认的进度条
	class ProThread2 extends Thread{
		private ProgressDialog dialog;
		public ProThread2(ProgressDialog dialog) {
			this.dialog =dialog;
		}

		public void run(){
			int num=0;
			while(num<20){
				try {
					++num;
					Thread.sleep(100);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
			dialog.dismiss();//消失;
		}
		
	}

	// 进度条的线程
	class ProThread extends Thread {
		ProgressDialog dialog2;

		public ProThread(ProgressDialog dialog2) {
			this.dialog2 = dialog2;
		}

		public void run() {
			dialog2.incrementProgressBy(-dialog2.getProgress());
			int max = dialog2.getMax();
			while (dialog2.getProgress() < max) {
				try {
					dialog2.incrementProgressBy(1);
					Thread.sleep(100);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

			}
			dialog2.dismiss();// 关闭对话框
		}
	}
}