小虎的博客

1、SimpleDateFormat 获取日期和星期 Date date = new Date(); SimpleDateFormat sim1 = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss EEEE"); String s = sim1.format(date);结果2021-03-29 09:35:43 星期一2、给定日期获取星期 Date date = new Date(); Simp

1、DatePickerDialog DatePickerDialog dialog1=new DatePickerDialog(Day03_01Activity.this); dialog1.setOnDateSetListener(new DatePickerDialog.OnDateSetListener() { @Override public void onDateSet(DatePicker view, int ye

1、重写viewPage，禁止滑动public class NoViewPager extends ViewPager { public NoViewPager(@NonNull Context context) { super(context); } public NoViewPager(@NonNull Context context, @Nullable AttributeSet attrs) { super(context, attrs

1、图片工具类public class MyImgView extends AppCompatImageView implements View.OnTouchListener, ScaleGestureDetector.OnScaleGestureListener { boolean mboo = true; Matrix matrix = new Matrix(); ScaleGestureDetector scaleGestureDetector; public M

1、布局文件<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_wi

https://blog.youkuaiyun.com/weixin_42462552/article/details/89474337

1、布局<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_widt

1、AlertDialog框的使用对于AlertDialog我经常使用，同时会使用自定义样式2、用法1、创建AlertDialog alertDialog = new AlertDialog.Builder(Bank_48_01Activity.this).create();2、创建一个xml文件 bank_48_adapt01 View view = View.inflate(Bank_48_01Activity.this, R.layout.bank_48_adapt01, null);

1、概述：首先网络连接有1、判断WIFI是否可用2、判断数据流量是否可用 所以判断是否有网络连接至少有上述其一。2、直接判断是否有网络 /* * 判断是否有网络连接 * */ public boolean isNetWorkConnect(Context context){ if (context!=null){ ConnectivityManager cm= (ConnectivityManager) context.getSy

简单二维码的实现1、导入实现二维码的依赖implementation 'com.google.zxing:core:3.3.0'2、布局文件<LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <ImageView andro

SlidingTabLayout的用法1、导入Gradle依赖implementation 'com.flyco.tablayout:FlycoTabLayout_Lib:2.1.2@aar'2、布局 布局采用SlidingTabLayout和ViewPage 配合使用，在ViewPage中添加fragment，从而实现左右滑动 具体代码如下:<?xml version="1.0" encoding="utf-8"?><Linear