ANDROID笔记：Dialog的几种用法

package com.example.android_dialog;

import java.util.Calendar;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.PopupWindow;
import android.widget.TimePicker;
import android.widget.Toast;

/**
 * Dialog的几种用法
 * 
 * @author Administrator
 * 
 */
public class MainActivity extends Activity implements OnClickListener {
    TimePickerDialog.OnTimeSetListener timeSetListener;
    DatePickerDialog.OnDateSetListener dateSetListener;

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

        Button button = (Button) findViewById(R.id.btn);
        button.setOnClickListener(this);

        Button button1 = (Button) findViewById(R.id.btn1);
        button1.setOnClickListener(this);
        Button button2 = (Button) findViewById(R.id.btn2);
        button2.setOnClickListener(this);

        Button button3 = (Button) findViewById(R.id.btn3);
        button3.setOnClickListener(this);
        // 日期Dialog的监听类
        dateSetListener = new DatePickerDialog.OnDateSetListener() {

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

            }
        };
        // 时间Dialog的监听类
        timeSetListener = new TimePickerDialog.OnTimeSetListener() {

            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                Toast.makeText(getApplicationContext(),
                        hourOfDay + ":" + minute, Toast.LENGTH_SHORT).show();
            }
        };
    }

    @Override
    public void onClick(View v) {
        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
        Calendar calendar = Calendar.getInstance();

        final AlertDialog dialog;
        switch (v.getId()) {
        // 普通Dialog界面
        case R.id.btn:
            dialog = builder.create();
            dialog.setTitle("提醒");
            dialog.setIcon(R.drawable.ic_launcher);
            dialog.setMessage("登录失败");
            dialog.show();
            break;
        // 自定Dialog自定义界面
        case R.id.btn1: {
            dialog = builder.create();
            dialog.setTitle("提醒");
            dialog.setIcon(R.drawable.ic_launcher);
            // 加载界面
            LayoutInflater inflater = LayoutInflater.from(MainActivity.this);
            View view = inflater.inflate(R.layout.dialogtest, null);
            final EditText editText = (EditText) view
                    .findViewById(R.id.editText1);
            final EditText editText2 = (EditText) view
                    .findViewById(R.id.editText2);
            Button button = (Button) view.findViewById(R.id.okbtn);
            button.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    Toast.makeText(
                            getApplicationContext(),
                            editText.getText().toString() + "-----"
                                    + editText2.getText().toString(),
                            Toast.LENGTH_SHORT).show();
                    dialog.dismiss();
                }
            });
            // dialog加载界面
            dialog.setView(view);
            dialog.show();
        }
            break;
        case R.id.btn2:
            // 日期Dialog
            DatePickerDialog datePickerDialog = new DatePickerDialog(
                    MainActivity.this, dateSetListener,
                    calendar.get(calendar.YEAR), calendar.get(calendar.MONTH),
                    calendar.get(calendar.DAY_OF_MONTH));
            // 时间Dialog
            TimePickerDialog timePickerDialog = new TimePickerDialog(
                    MainActivity.this, timeSetListener,
                    calendar.get(calendar.HOUR_OF_DAY),
                    calendar.get(calendar.MINUTE), true);
            datePickerDialog.show();

            break;
        case R.id.btn3: {
            // PopupWindow
            LayoutInflater inflater = LayoutInflater.from(MainActivity.this);
            View view = inflater.inflate(R.layout.dialogtest, null);
            final PopupWindow popupWindow = new PopupWindow(view, 320, 320);
            Button button = (Button) view.findViewById(R.id.okbtn);
            button.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    // popupWindow消失
                    popupWindow.dismiss();

                }
            });
            // 在屏幕底部显示
            popupWindow.showAtLocation(v, Gravity.BOTTOM, 0, 0);
        }
            break;
        }

    }
}