android Dialog官方demo

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");