chongyun3595-优快云博客

转载 rxjava2 lazyFromIterable 顺序订阅 lazy 发射数据

昨天找了一天没找到合适的操作符.写了一个扩展方法.具体情况: 需要请求一批url大概1000个左右服务器限制不能并行请求,不能请求过快.所以想要做的就是等到上一个请求完成后再开始下一个请求扩展方法fun <T, R> Observable<List<T&g...

2018-06-25 12:33:00 312

转载 SwipeRefreshLayout_避免和内部view 手势冲突

class SwipeRefreshLayout_ @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) : SwipeRefreshLayout(context, attrs) { overr...

2018-06-24 13:52:00 192

转载 rxjava 优雅的取消订阅。（kotlin）

使用kotlin的扩展方法。封装 (前面是rxbus的单例对象，实际基本不使用)val processor = PublishProcessor.create<Any>().toSerialized()private val map = WeakHashMap<S...

2018-06-17 16:09:00 327

转载安卓生命周期方法回调顺序

04-02 12:46:59.313 5549-5549/sjj.fiction I/Log:onAttachFragment(BaseActivity.kt:56): onAttachFragment sjj.fiction.main.MainActivity@c0775ad Report...

2018-04-02 12:49:00 239

转载 Android 线程池工具类

java public final class Pool { private Pool() { } public static Disposable submit(@NonNull Scheduler scheduler, @NonNull final Runna...

2017-09-11 10:23:00 191

转载 windows 使用 eclipse 开发 C++

安装JDKJDK环境配置安装 eclipse c++下载免安装版本解压就可以使用安装MinGWMinGW 安装教程按照教程说明配置环境变量即可eclipse 创建C++项目项目上右键-> build project 项目右键 -> run as ...

2017-08-23 11:01:00 81

转载 Android 权限动态获取

PermissionUtilAndroid 权限动态获取dependencies{compile 'com.sjianjun:permissionUtil:1.0.0'} PermissionUtil.requestPermissions(this, new String[]{Ma...

2017-07-30 22:57:00 102

转载 scheduleAtFixedRate 与 scheduleWithFixedDelay 的区别

ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor(); scheduledExecutorService.scheduleAtFixedR...

2017-04-10 22:25:00 102

转载 Android 获取 manifest 中声明的权限

try { PackageInfo packageInfo = getPackageManager().getPackageInfo(getPackageName(), PackageManager.GET_PERMISSIONS); Str...

2017-04-10 22:06:00 986

转载 ALog

使用 1、添加依赖 compile 'com.sjianjun:aLog:1.1.3' Config config = new Config(); config.enable = true; config.hold = true; ...

2017-04-03 21:12:00 249

转载 DialogWrapper

package sjj.notes.module.general;import android.app.Activity;import android.content.DialogInterface;import android.support.v7.app.AlertDialog;...

2017-03-26 12:53:00 1228

转载经纬度与距离转换

private static final double EARTH_RADIUS = 6378137;/** * 根据维度与弧度值计算经度差 * * @param latitude 纬度 * @param distance 距离，纬度方向弧线长度 * @return 返回经度值...

2017-03-10 15:49:00 312

转载 public void onCreate(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentStat

在Activity注册时如果没有写 android:persistableMode="persistAcrossReboots" 不会调用 public void onCreate(@Nullable Bundle savedInstanceState, @Nullable Persis...

2017-03-07 13:39:00 546

转载文件目录

ALog.i(Environment.getDataDirectory());I/onCreate(MainActivity.java:15): /dataALog.d(Environment.getDownloadCacheDirectory());D/onCreate(MainAc...

2017-03-05 11:49:00 114

转载 DrawerLayout 从下方弹出的菜单控件

public class DrawerLayout extends FrameLayout { private ViewDragHelper mDragHelper; private Status mStatus = Status.Close; private Status target...

2017-02-14 16:36:00 879

转载 CheckableImageView

public class CheckableImageView extends ImageView implements Checkable { private static final int[] CHECKED_STATE_SET = { android.R.attr.state_che...

2017-02-14 16:35:00 178

转载 SelectHelper 支持单击选中双击选中多选连续多选

public class SelectHelper { private Context context; private AbsListView mObj; private int listCount = -1; public void setListCount(int listCo...

2017-02-14 16:34:00 420

转载 SuperRefreshLayout

public class SuperRefreshLayout extends SwipeRefreshLayout { private Rect mTouchFrame; private int x; private int y; public Supe...

2017-02-14 16:31:00 156

转载 RefreshListView

public class RefreshListView extends ListView { private HeaderHelper mHeaderHelper; private float lastY; private float lastX; private FooterHel...

2017-02-14 16:30:00 182

转载 WebView截图

private void captureWebView(WebView webView) { int webViewHeight = (int) (webView.getContentHeight() * webView .getScale()); Bitmap bmp = B...

2017-02-14 16:22:00 69

转载 PopupWindowFragment

public class PopupWindowFragment extends Fragment implements PopupWindow.OnDismissListener { private PopupWindow popupWindow; private View...

2017-02-14 16:22:00 240

转载统计代码行数

package test;import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import ...

2017-02-14 16:20:00 62

转载切割图片

public static List<ImagePiece> split(Bitmap bitmap, int xPiece, int yPiece) { List<ImagePiece> pieces = new ArrayLis...

2017-02-14 16:19:00 68

转载 android studio 快捷键

alt + insert 生成通用方法 get set 构造函数等deng ctrl + o 重写方法 ctrl + i 重写接口方法 ctrl + shift + ↑/↓ 移动一行代码 ctrl + alt + m 提取方法 ctrl + alt + b 查看实现类方法 ...

2017-02-14 16:08:00 66

转载 HttpURLConnection 下载图片

private Bitmap downloadBitmap(String url) { HttpURLConnection conn = null; try { conn = (HttpURLConnection) new URL(url).openConnec...

2017-02-13 17:30:00 136

转载 Android L Ripple的使用

<ripple xmlns:android="http://schemas.android.com/apk/res/android" android:color="@color/gray_press" > <item> <sele...

2017-02-13 17:06:00 146

转载 android:Theme.Material

2017-02-13 16:49:00 308

转载 Dialog 大小设置，背景透明

设置dialog 大小 DisplayMetrics dm = new DisplayMetrics();getActivity().getWindowManager().getDefaultDisplay().getMetrics(dm);dialog.getWindow().set...

2017-02-13 16:45:00 150

转载检查给定View或者内部子View 是否可以向下滑动

private boolean canChildScrollUp(View view) { if(!inRangeOfView(view,x,y))return false; if (view instanceof ViewGroup) { ViewGrou...

2017-02-13 16:41:00 105

转载 android View 边界判断

private boolean inRangeOfView(View view,int x, int y) { Rect frame = mTouchFrame; if (frame == null) { mTouchFrame = new Rect(); ...

2017-02-13 16:38:00 541

转载 Android开发：shape和selector和layer-list的（详细说明）

1.Shape 简介作用：XML中定义的几何形状位置：res/drawable/文件的名称.xml 使用的方法： Java代码中：R.drawable.文件的名称 XML中：Android:background="@drawable/文件的名称" 属性...

2017-02-13 16:32:00 56

转载 android 收起输入法键盘

``` manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); getWindow().setSoftInputMode( WindowMan...

2017-02-13 16:18:00 171

转载 android 手势控制支持平移缩放

public class MultiTouchGestures implements OnTouchListener { private GesturesL mGesturesL; private int mTouchSlop; private SparseArray&...

2017-02-13 15:22:00 169