各类Dialog的创建方式

Dialog在开发中比较常用，下面随便写了几个常见的创建方式，都是基于Android原生的样式创建。当然完全可以自定义实现自己想要的效果，而且实现也是相当简单，自定义实现不是本篇博客的主旨，循序渐进，下篇呈现~

switch (v.getId()) {    case R.id.btn1://确定取消对话框        //1获取一个对话框的创建器        AlertDialog.Builder builder=new Builder(MainActivity.this);        //2所有builder设置一些参数        builder.setTitle("对话框标题");        builder.setMessage("提示是否退出");        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this, "确定按钮被点击",1).show();            }        });        builder.setNeutralButton("取消",new DialogInterface.OnClickListener() {            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this, "取消按钮被点击",1).show();            }        });        builder.create().show();        break;    case R.id.btn2://pick对话框        AlertDialog.Builder builder2=new Builder(MainActivity.this);        builder2.setTitle("选择一个人");        final String[] arr=new String[]{"张三","李四","王五"};        builder2.setItems(arr, new DialogInterface.OnClickListener() {            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this, arr[which], 1).show();            }        });         builder2.create().show();        break;    case R.id.btn3://带选择的单选按钮的对话框        AlertDialog.Builder builder3=new Builder(MainActivity.this);        builder3.setTitle("选择一个颜色");        final String[] items=new String[]{"蓝色","黄色","红色"};        builder3.setSingleChoiceItems(items, 1, new DialogInterface.OnClickListener() {            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this, items[which], 1).show();            }        });        builder3.create().show();        dialog3.dismiss();        break;    case R.id.btn4://带选择的多选按钮的对话框        AlertDialog.Builder builder4=new Builder(MainActivity.this);        builder4.setTitle("选择若干个颜色");        final String[] items4=new String[]{"蓝色","黄色","红色"};        builder4.setMultiChoiceItems(items4, new boolean[]{false,false,false}, new DialogInterface.OnMultiChoiceClickListener() {            public void onClick(DialogInterface dialog, int which, boolean isChecked) {                Toast.makeText(MainActivity.this, items4[which]+"选择状态"+isChecked, 1).show();            }        });        builder4.setPositiveButton("确定",new DialogInterface.OnClickListener() {            public void onClick(DialogInterface dialog, int which) {            }        });        dialog3=builder4.create();        dialog3.show();        break;    case R.id.btn5://进度条的对话框        ProgressDialog pd=new ProgressDialog(this);        pd.setTitle("提示");        pd.setMessage("正在加载中，请稍后...");        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);//设置带进度条的        pd.setMax(100);        pd.show();        pd.setProgress(50);        break;}