Android中Dialog对话框的调用及监听

Android中经常会需要在Android界面上弹出一些对话框提示用户，比如App的退出的时候都会有各种框来挽留你的心，支付宝的时候输入密码的密码框，非常常见及其实用的功能，类似于JS中的alter，C#中C/S中常用MessgeBox，总而言之就是一个功能弹，弹，弹，本文就简单的叙述一下Dialog的各种弹框使用及监听，顺便写了一个简单的自定义弹框，接下来请看正文:

一般对话框

先看下整个App页面:

看下一般对话框的结果:

具体代码的实现，其中定义了两个按钮，一个是确定（PositiveButton）按钮，一个是取消（NegativeButton）按钮:

	builder = new AlertDialog.Builder(this);
			builder.setTitle("亲,你真的要离开吗?");
			// 相当于确定
			builder.setPositiveButton("退出",
					new DialogInterface.OnClickListener() {
						@Override
						public void onClick(DialogInterface dialog, int which) {
							// TODO Auto-generated method stub
							Toast.makeText(MainActivity.this, "是的，哥要走了",
									Toast.LENGTH_SHORT).show();
						}
					});
			// 相当于取消
			builder.setNegativeButton("再看看",
					new DialogInterface.OnClickListener() {

						@Override
						public void onClick(DialogInterface dialog, int which) {
							// TODO Auto-generated method stub
							Toast.makeText(MainActivity.this, "行，哥再看会",
									Toast.LENGTH_SHORT).show();
						}
					});

			builder.show();

　ICON对话框

上面只是用到了两个按钮，其实还有一个是中立按钮，另外发现每次都写一个监听事件感觉太麻烦了，可以单独写一个监听事件去判断哪个事件被触发了:

单独定义个DialogClickListener:

	private DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {

		@Override
		public void onClick(DialogInterface dialog, int which) {
			// TODO Auto-generated method stub
			switch (which) {
			case DialogInterface.BUTTON_POSITIVE:
				Toast.makeText(MainActivity.this, "强烈支持" + which,
						Toast.LENGTH_SHORT).show();
				break;
			case DialogInterface.BUTTON_NEUTRAL:
				Toast.makeText(MainActivity.this, "跟我无关，我是中立的" + which,
						Toast.LENGTH_SHORT).show();
				break;
			case DialogInterface.BUTTON_NEGATIVE:
				Toast.makeText(MainActivity.this, "强烈反对" + which,
						Toast.LENGTH_SHORT).show();
				break;
			default:
				break;
			}
		}
	};

　　按钮事件的调用:

	builder = new AlertDialog.Builder(this);
			builder.setTitle("XX视频");
			builder.setIcon(android.R.drawable.btn_star);
			builder.setMessage("如何看待香港占中事件?");
			builder.setPositiveButton("支持", dialogClickListener);
			builder.setNegativeButton("反对", dialogClickListener);
			// 中立
			builder.setNeutralButton("中立", dialogClickListener);
			builder.show();

列表对话框

看下效果图:

代码实现:

		builder = new AlertDialog.Builder(this);
			builder.setTitle("NBA幻觉");
			builder.setIcon(android.R.drawable.btn_star);
			final String[] nameArrStrings = new String[] { "马刺很老", "小牛很弱",
					"火箭很强" };
			builder.setItems(nameArrStrings, new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, nameArrStrings[which],
							Toast.LENGTH_SHORT).show();
				}
			});
			builder.setPositiveButton("确定", new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub

				}
			});
			builder.setNegativeButton("取消", new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub

				}
			});
			builder.show();

　　单选对话框

效果图：

代码实现:

	builder = new AlertDialog.Builder(this);
			builder.setTitle("NBA球队");
			builder.setIcon(android.R.drawable.btn_radio);
			final String[] ballArr = new String[] { "骑士", "热火", "凯尔特人" };
			builder.setSingleChoiceItems(ballArr, 1, new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, ballArr[which],
							Toast.LENGTH_SHORT).show();
				}
			});
			builder.setPositiveButton("确定", new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub

				}
			});
			builder.setNegativeButton("取消", new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub

				}
			});
			builder.show();

　　多选对话框

效果图:

代码实现:

	builder = new AlertDialog.Builder(this);
			builder.setTitle("NBA球星");
			builder.setIcon(android.R.drawable.btn_radio);
			final String[] ballstartArr = new String[] { "邓肯", "诺维斯基", "莱昂纳德",
					"科比" };
			final boolean[] multiCheckedArrStrings = new boolean[] { true,
					false, true, false };
			builder.setMultiChoiceItems(ballstartArr, multiCheckedArrStrings,
					new OnMultiChoiceClickListener() {

						@Override
						public void onClick(DialogInterface dialog, int which,
								boolean isChecked) {
							// TODO Auto-generated method stub
							StringBuffer buffer = new StringBuffer();
							for (int i = 0; i < multiCheckedArrStrings.length; i++) {
								if (multiCheckedArrStrings[i]) {
									buffer.append(ballstartArr[i] + ",");
								}
							}
							buffer.deleteCharAt(buffer.length() - 1);
							Toast.makeText(MainActivity.this, buffer,
									Toast.LENGTH_SHORT).show();
						}
					});

			builder.setPositiveButton("确定", new OnClickListener() {

				@Override
				public void onClick(DialogInterface dialog, int which) {
					// TODO Auto-generated method stub

				}
			});
			builder.show();

　　文本对话框

比如说支付宝，转账的时候你需要输入密码，弹出一个密码输入框，效果如图:

代码实现,，这个时候你需要给builder中的view赋值:

		builder = new AlertDialog.Builder(this);
			builder.setTitle("输入密码");
			builder.setIcon(android.R.drawable.btn_star);
			final EditText editText = new EditText(MainActivity.this);
			builder.setView(editText);
			builder.setPositiveButton("确定",
					new DialogInterface.OnClickListener() {
						@Override
						public void onClick(DialogInterface dialog, int which) {
							// TODO Auto-generated method stub
							Toast.makeText(MainActivity.this,
									"输入的密码是：" + editText.getText(),
									Toast.LENGTH_SHORT).show();
						}
					});
			builder.setNegativeButton("取消",
					new DialogInterface.OnClickListener() {

						@Override
						public void onClick(DialogInterface dialog, int which) {
							// TODO Auto-generated method stub
							Toast.makeText(MainActivity.this, "取消",
									Toast.LENGTH_SHORT).show();
						}
					});

			builder.show();

　　自定义对话框

上面的那个EditText是创建的，其实可以自定义一个布局，然后通过填充进去,效果如下:

自定义一个dialog_text.xml文件:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="密码:" />

    <EditText
        android:id="@+id/edit_password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>

　　代码实现:

		builder = new AlertDialog.Builder(this);
			builder.setTitle("输入密码");
			builder.setIcon(android.R.drawable.btn_star);
			final EditText editText = new EditText(MainActivity.this);
			builder.setView(editText);
			builder.setPositiveButton("确定",
					new DialogInterface.OnClickListener() {
						@Override
						public void onClick(DialogInterface dialog, int which) {
							// TODO Auto-generated method stub
							Toast.makeText(MainActivity.this,
									"输入的密码是：" + editText.getText(),
									Toast.LENGTH_SHORT).show();
						}
					});
			builder.setNegativeButton("取消",
					new DialogInterface.OnClickListener() {

						@Override
						public void onClick(DialogInterface dialog, int which) {
							// TODO Auto-generated method stub
							Toast.makeText(MainActivity.this, "取消",
									Toast.LENGTH_SHORT).show();
						}
					});

			builder.show();

------------2015.11.15更新---忘记写了，还有一种是进度条对话框，简单的进度对话框和带进度的对话框-----

代码如下:

	ProgressDialog  progressDialog=new  ProgressDialog(this);
			progressDialog.setTitle("XX助手");
			progressDialog.setMessage("XX正在更新。。。");
			progressDialog.show();

显示进度的对话框:

代码如下:

		final ProgressDialog  precentDialog=new  ProgressDialog(this);
			precentDialog.setTitle("XX下载");
			precentDialog.setMessage("XX正在更新。。。");
			precentDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
			precentDialog.setMax(100);
			precentDialog.show();
			new Thread(){
				public void run() {
					for (int i = 0; i < 100; i++) {
						try {
							Thread.sleep(50);
						} catch (InterruptedException e) {
							e.printStackTrace();
						}
						precentDialog.setProgress(i);
					}
					precentDialog.dismiss();
				};
			}.start();