Android 对话框

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1.确定取消对话框

对话框中有2个按钮通过调用 setPositiveButton 方法和 setNegativeButton 方法可以设置按钮的显示内容以及按钮的监听事件。

我们使用AlerDialog 创建对话框

AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);   使用builder设置对话框的title button icon 等等view plainbuilder.setIcon(R.drawable.icon);         builder.setTitle("你确定要离开吗？");         builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {             public void onClick(DialogInterface dialog, int whichButton) {                 //这里添加点击确定后的逻辑                 showDialog("你选择了确定");             }         });         builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {             public void onClick(DialogInterface dialog, int whichButton) {                 //这里添加点击确定后的逻辑                 showDialog("你选择了取消");             }         });         builder.create().show();    这个dialog用于现实onClick后监听的内容信息view plainprivate void showDialog(String str) {  w AlertDialog.Builder(MainDialog.this)       .setMessage(str)       .show();  }

2.多个按钮信息框

builder.setIcon(R.drawable.icon);  builder.setTitle("投票");  builder.setMessage("您认为什么样的内容能吸引您？");  builder.setPositiveButton("有趣味的", new DialogInterface.OnClickListener() {      public void onClick(DialogInterface dialog, int whichButton) {          showDialog("你选择了有趣味的");      }  });  builder.setNeutralButton("有思想的", new DialogInterface.OnClickListener() {      public void onClick(DialogInterface dialog, int whichButton) {          showDialog("你选择了有思想的");                          }  });  builder.setNegativeButton("主题强的", new DialogInterface.OnClickListener() {      public void onClick(DialogInterface dialog, int whichButton) {          showDialog("你选择了主题强的");        }  });  builder.create().show();

3.列表框

这个数组用于列表选择

final String[] mItems = {"item0","item1","itme2","item3","itme4","item5","item6"};  view plainAlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);           builder.setTitle("列表选择框");          builder.setItems(mItems, new DialogInterface.OnClickListener() {              public void onClick(DialogInterface dialog, int which) {                  //点击后弹出窗口选择了第几项                  showDialog("你选择的id为" + which + " , " + mItems[which]);              }          });          builder.create().show();

4.单项选择列表框

mSingleChoice 用于记录单选中的ID

int mSingleChoiceID = -1;  view plainAlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);   mSingleChoiceID = -1;  builder.setIcon(R.drawable.icon);      builder.setTitle("单项选择");      builder.setSingleChoiceItems(mItems, 0, new DialogInterface.OnClickListener() {          public void onClick(DialogInterface dialog, int whichButton) {                  mSingleChoiceID = whichButton;                  showDialog("你选择的id为" + whichButton + " , " + mItems[whichButton]);          }      });      builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {          public void onClick(DialogInterface dialog, int whichButton) {              if(mSingleChoiceID > 0) {              showDialog("你选择的是" + mSingleChoiceID);              }          }      });      builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {          public void onClick(DialogInterface dialog, int whichButton) {          }      });     builder.create().show();

5.进度条框

点击进度条框按钮后开启一个线程计算读取的进度假设读取结束为 100
Progress在小于100的时候一直在线程中做循环++ 只到读取结束后，停止线程。

     mProgressDialog = new ProgressDialog(MainDialog.this);       mProgressDialog.setIcon(R.drawable.icon);       mProgressDialog.setTitle("进度条窗口");       mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);       mProgressDialog.setMax(MAX_PROGRESS);       mProgressDialog.setButton("确定", new DialogInterface.OnClickListener() {           public void onClick(DialogInterface dialog, int whichButton) {               //这里添加点击后的逻辑           }       });       mProgressDialog.setButton2("取消", new DialogInterface.OnClickListener() {           public void onClick(DialogInterface dialog, int whichButton) {               //这里添加点击后的逻辑           }       });       mProgressDialog.show();       new Thread(this).start();  ic void run() {  int Progress = 0;  while(Progress < MAX_PROGRESS) {  try {      Thread.sleep(100);      Progress++;        mProgressDialog.incrementProgressBy(1);  } catch (InterruptedException e) {      // TODO Auto-generated catch block      e.printStackTrace();  }     }

6.多项选择列表框

MultiChoiceID 用于记录多选选中的id号存在ArrayList中
选中后 add 进ArrayList
取消选中后 remove 出ArrayList。

ArrayList <Integer>MultiChoiceID = new ArrayList <Integer>();  AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);   MultiChoiceID.clear();  builder.setIcon(R.drawable.icon);      builder.setTitle("多项选择");      builder.setMultiChoiceItems(mItems,              new boolean[]{false, false, false, false, false, false, false},              new DialogInterface.OnMultiChoiceClickListener() {                  public void onClick(DialogInterface dialog, int whichButton,                          boolean isChecked) {                     if(isChecked) {                         MultiChoiceID.add(whichButton);                         showDialog("你选择的id为" + whichButton + " , " + mItems[whichButton]);                     }else {                         MultiChoiceID.remove(whichButton);                     }                  }              });      builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {          public void onClick(DialogInterface dialog, int whichButton) {              String str = "";              int size = MultiChoiceID.size();              for (int i = 0 ;i < size; i++) {              str+= mItems[MultiChoiceID.get(i)] + ", ";              }              showDialog("你选择的是" + str);          }      });      builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {          public void onClick(DialogInterface dialog, int whichButton) {          }      });     builder.create().show();

7.自定义布局

讲到自定义布局我就得多说一说了，为什么要多说一说呢？
其实自定义布局在Android的开发中非常重要因为它能让开发者做出自己五彩缤纷的Activity 而不用去使用系统枯燥的界面。

自定义dialog有什么好处？

比如我们在开发过长当中要通过介绍系统发送的一个广播弹出一个dialog . 但是dialog必需是基于activity才能呈现出来如果没有activity 的话程序就会崩溃。所以我们可以写一个自定义的 dialog 把它定义成一个activity
这样我们收到一条打开dialog的广播后直接启动这个 activity 程序正常运行~~

这就是自定义dialog的好处。

注明：下面这个例子只是写了自定义dialog 没有把它单独的写在一个activity中如果须要的话可以自己改一下。

AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);    LayoutInflater factory = LayoutInflater.from(this);   final View textEntryView = factory.inflate(R.layout.test, null);       builder.setIcon(R.drawable.icon);       builder.setTitle("自定义输入框");       builder.setView(textEntryView);       builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {           public void onClick(DialogInterface dialog, int whichButton) {           EditText userName = (EditText) textEntryView.findViewById(R.id.etUserName);           EditText password = (EditText) textEntryView.findViewById(R.id.etPassWord);           showDialog("姓名 ："  + userName.getText().toString()  + "密码：" + password.getText().toString() );           }       });       builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {           public void onClick(DialogInterface dialog, int whichButton) {           }       });     builder.create().show();  <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_height="wrap_content"   android:layout_width="wrap_content"  android:orientation="horizontal"  android:id="@+id/dialog">  <LinearLayout  android:layout_height="wrap_content"   android:layout_width="wrap_content"  android:orientation="horizontal"  android:id="@+id/dialogname">  <TextView android:layout_height="wrap_content"     android:layout_width="wrap_content"    android:id="@+id/tvUserName"     android:text="姓名：" />  <EditText android:layout_height="wrap_content"    android:layout_width="wrap_content"     android:id="@+id/etUserName"     android:minWidth="200dip"/>  </LinearLayout>    <LinearLayout  android:layout_height="wrap_content"   android:layout_width="wrap_content"  android:orientation="horizontal"  android:id="@+id/dialognum"   android:layout_below="@+id/dialogname"  >    <TextView android:layout_height="wrap_content"     android:layout_width="wrap_content"    android:id="@+id/tvPassWord"     android:text="密码：" />  <EditText android:layout_height="wrap_content"    android:layout_width="wrap_content"     android:id="@+id/etPassWord"     android:minWidth="200dip"/>   </LinearLayout>      </RelativeLayout></span>

8.读取进度框

显示一个正在转圈的进度条loading

mProgressDialog = new ProgressDialog(this);   mProgressDialog.setTitle("读取ing");   mProgressDialog.setMessage("正在读取中请稍候");   mProgressDialog.setIndeterminate(true);   mProgressDialog.setCancelable(true);   mProgressDialog.show();

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