Android惯用ProgressDialog设置

public static ProgressDialog initDialog(Context context) {		ProgressDialog progressDialog = new ProgressDialog(context);		progressDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);		progressDialog.setCanceledOnTouchOutside(false);		progressDialog.setMessage("loading...");		//使其按下Back键无用		progressDialog.setCancelable(false);		//使其点击对话框以外的地方不起作用		progressDialog.setCanceledOnTouchOutside(false);		//使其按下Search键无用		progressDialog.setOnKeyListener(new OnKeyListener() {			@Override			public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {				if (keyCode==KeyEvent.KEYCODE_SEARCH) {					return true;				}				return false;			}		});		return progressDialog;	}