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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();

  当然还有很多自定义的各种弹框,完全是根据业务需要自己实现,本文中没有对代码没有详细解释,基本的调用方法都一样,也没有太难的地方,如果疑问,可以评论我或私信我;

Android中Dialog对话框的调用及监听