allprojects {
    repositories {
	 ...
	 maven { url 'https://jitpack.io' }
    }
}

dependencies {
    //androidX版本
    implementation 'com.github.lzjin:AlipayPassDialog:2.2' 

    //Support  版本
    implementation 'com.github.lzjin:AlipayPassDialog:2.0'
}

    //1 默认方式(推荐)
    private void payDialog() {
        final PayPassDialog dialog=new PayPassDialog(this);
          dialog.getPayViewPass()
                .setRandomNumber(true)
                .setPayClickListener(new PayPassView.OnPayClickListener() {
                    @Override
                    public void onPassFinish(String passContent) {
                        //6位输入完成回调
                    }
                    @Override
                    public void onPayClose() {
                        dialog.dismiss();
                        //关闭弹框
                    }
                    @Override
                    public void onPayForget() {
                        dialog.dismiss();
                        //点击忘记密码回调
                    }
                });
    }

    //2 自定义方式
    private void payDialog2() {
        final PayPassDialog dialog=new PayPassDialog(this,R.style.dialog_pay_theme);
        //弹框自定义配置
        dialog.setAlertDialog(false)
                .setWindowSize(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT,0.4f)
                .setOutColse(false)
                .setGravity(R.style.dialogOpenAnimation, Gravity.BOTTOM);
        //组合控件自定义配置
        dialog.getPayViewPass()
        .setForgetText("忘记支付密码?");
        .setForgetColor(getResources().getColor(R.color.colorAccent));
        .setForgetSize(16);
        .setPayClickListener(new PayPassView.OnPayClickListener() {
            @Override
            public void onPassFinish(String passContent) {
                //6位输入完成回调
                showShort("输入完成回调");
            }
            @Override
            public void onPayClose() {
                dialog.dismiss();
                //关闭回调
            }
            @Override
            public void onPayForget() {
                dialog.dismiss();
                //忘记密码回调
                showShort("忘记密码回调");
            }
        });
    }