1.普通的Dialog
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("今天下雨了吗？")
.setPositiveButton("yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(Demo7Activity.this,"你点击了yes",Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("no", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(Demo7Activity.this,"你点击了no",Toast.LENGTH_SHORT).show();
}
});
builder.show();
2.单选Dialog
final String []str = {"香蕉","橘子","苹果","橙子","西瓜","凤梨"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("请选择一种水果")
.setItems(str, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(Demo7Activity.this,"你喜欢"+str[which]+"水果",Toast.LENGTH_SHORT).show();
}
});
builder.show();
3.多选Dialog
final String []str = {"香蕉","橘子","苹果","橙子","西瓜","凤梨"};
final ArrayList<String>mSelectedItems = new ArrayList<String>();
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// Set the dialog title
builder.setTitle("请选择一种水果")
// Specify the list array, the items to be selected by default (null for none),
// and the listener through which to receive callbacks when items are selected
.setMultiChoiceItems(str, null,
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which,
boolean isChecked) {
if (isChecked) {
// If the user checked the item, add it to the selected items
mSelectedItems.add(str[which]);
} else if (mSelectedItems.contains(which)) {
// Else, if the item is already in the array, remove it
mSelectedItems.remove(str[which]);
}
}
})
// Set the action buttons
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
if(mSelectedItems.size() <= 0){
Toast.makeText(Demo7Activity.this,"你没有喜欢的水果",Toast.LENGTH_SHORT).show();
return;
}
StringBuffer buffer = new StringBuffer();
for (int i=0;i<mSelectedItems.size();i++){
buffer.append(mSelectedItems.get(i)+" ");
}
Toast.makeText(Demo7Activity.this,"你喜欢的水果有"+buffer.toString(),Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(Demo7Activity.this,"你取消了选择",Toast.LENGTH_SHORT).show();
}
});
builder.show();
4. 自定义Dialog
demo7_custom_alert_view.xml代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:src="@drawable/ic_launcher"
android:layout_width="match_parent"
android:layout_height="64dp"
android:scaleType="center"
android:background="#FFFFBB33"
android:contentDescription="@string/app_name" />
<EditText
android:id="@+id/username"
android:inputType="textEmailAddress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="4dp"
android:hint="请输入用户名" />
<EditText
android:id="@+id/password"
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="16dp"
android:fontFamily="sans-serif"
android:hint="请输入密码"/>
</LinearLayout>
主要代码：
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// Get the layout inflater
LayoutInflater inflater = this.getLayoutInflater(); // Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
builder.setView(inflater.inflate(R.layout.demo7_custom_alert_view, null))
// Add action buttons
.setPositiveButton("登录", new DialogInterface.OnClickListener() { @Override
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(Demo7Activity.this,"登录",Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(Demo7Activity.this,"取消",Toast.LENGTH_SHORT).show();
}
});
builder.show();
与之相对：ProgressDialog
方式一：new Dialog
final ProgressDialog dialog = new ProgressDialog(this);
dialog.show();
方式二：使用静态方式创建并显示，这种进度条只能是圆形条,设置title和Message提示内容
ProgressDialog dialog2 = ProgressDialog.show(this, "提示", "正在登陆中");
// 方式三 使用静态方式创建并显示，这种进度条只能是圆形条,这里最后一个参数boolean indeterminate设置是否是不明确的状态
ProgressDialog dialog3 = ProgressDialog
.show(this, "提示", "正在登陆中", false);
// 方式四 使用静态方式创建并显示，这种进度条只能是圆形条,这里最后一个参数boolean cancelable 设置是否进度条是可以取消的
ProgressDialog dialog4 = ProgressDialog.show(this, "提示", "正在登陆中",
false, true);
// 方式五 使用静态方式创建并显示，这种进度条只能是圆形条,这里最后一个参数 DialogInterface.OnCancelListener
// cancelListener用于监听进度条被取消
ProgressDialog dialog5 = ProgressDialog.show(this, "提示", "正在登陆中", true,
true, cancelListener);
private OnCancelListener cancelListener = new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, "进度条被取消", Toast.LENGTH_LONG)
.show();
}
}; ProgressDialog dialog = new ProgressDialog(this);
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);// 设置进度条的形式为圆形转动的进度条
dialog.setCancelable(true);// 设置是否可以通过点击Back键取消
dialog.setCanceledOnTouchOutside(false);// 设置在点击Dialog外是否取消Dialog进度条
dialog.setIcon(R.drawable.ic_launcher);//
// 设置提示的title的图标，默认是没有的，如果没有设置title的话只设置Icon是不会显示图标的
dialog.setTitle("提示");