Launcher知识的demo，手机管家小伙家与悬浮窗
Launcher知识的demo。主要仿的手机管家小伙家与悬浮窗的效果。东西比較简单。直接贴代码
主要用到了windowManager 中的更新updateViewLayout(view，params),和 加入windowManager.addView（）和删除windowManager.removeView()
移动launcher主要是updateViewLayout(view，params),中的params来实现
贴几个主要类，所有源代码请自己下载
package com.pzf.flow; import java.util.Timer;
import java.util.TimerTask; import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;
/**
* 开启服务。用来推断是否是主页面。假设在主页面则显示悬浮窗。否则隐藏悬浮框
* @author pangzf
* @time 2014年10月11日 上午11:19:42
*/
public class MyService extends Service {
private Timer timer;
private Handler mHandler = new Handler(); public MyService() {
} @Override
public IBinder onBind(Intent intent) {
return null;
} @Override
public void onCreate() { super.onCreate();
} @Override
public int onStartCommand(Intent intent, int flags, int startId) {
// 开启定时器
// 推断是否在主页面，假设在主页面同事small没有显示，则显示small
// 开启定时器，每隔0.5秒刷新一次
if (timer == null) {
timer = new Timer();
timer.scheduleAtFixedRate(new MyTimerTask(), 0, 500);
}
return super.onStartCommand(intent, flags, startId);
} private class MyTimerTask extends TimerTask { @Override
public void run() {
showWindow();
} } /**
* 推断是否在主页面，假设在主页面同事small没有显示。则显示small
*/
private void showWindow() {
if (MyWindowManager.isHome(getApplicationContext()) && !MyWindowManager.isWindowShowing()) {
mHandler.post(new Runnable() { @Override
public void run() {
MyWindowManager.createSmallWindow(getApplicationContext());
}
}); } else if (!MyWindowManager.isHome(getApplicationContext()) && MyWindowManager.isWindowShowing()) {
// 假设不是主页，可是已经有窗体了，关掉之前的窗体
mHandler.post(new Runnable() { @Override
public void run() {
MyWindowManager.removeSmallWindow(getApplicationContext()); }
});
} else if (MyWindowManager.isHome(getApplicationContext()) && MyWindowManager.isWindowShowing()) {
mHandler.post(new Runnable() { @Override
public void run() {
MyWindowManager.updatePercent(getApplicationContext());
}
});
}
} @Override
public void onDestroy() {
if (timer != null) {
timer.cancel();
timer = null;
}
super.onDestroy();
} }
package com.pzf.flow; import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List; import android.app.ActivityManager;
import android.app.ActivityManager.MemoryInfo;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.PixelFormat;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
import android.widget.TextView;
/**
* 管理类。1.用来创建launcher 2.删除launcher 3.更新launcher 4.改变火箭发射台的背景图 5.推断是否主页 6.界面是否存在悬浮框 7。 获得执行内存等
* @author pangzf
* @time 2014年10月11日 上午11:20:37
*/
public class MyWindowManager {
private static WindowManager mWindowManager;
private static LayoutInflater mInflater;
private static SmallView smallWindow;
private static WindowManager.LayoutParams smallWindowParams;
static int screenWidth;
static int screenHeight;
private static ActivityManager mActivityManager;
private static BigView bigView;
private static LayoutParams bigWindowParams;
private static RocketLauncher mRocketLauncher;
private static LayoutParams mRocketWindowParams; public MyWindowManager(Context context) {
mWindowManager = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
mInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } /**
* 推断是否是主页面
*/
public static boolean isHome(Context context) {
ActivityManager activityManager = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> runningTasks = activityManager.getRunningTasks(1);
return getHome(context).contains(
runningTasks.get(0).topActivity.getPackageName());
} /***
* 获得主页面
*
* @return
*/
private static List<String> getHome(Context context) {
PackageManager packageManager = context.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
List<String> names = new ArrayList<String>();
List<ResolveInfo> list = packageManager.queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
if (list != null) {
for (ResolveInfo info : list) {
names.add(info.activityInfo.packageName);
}
}
return names;
} /**
* 是否有窗体在屏幕上显示
*
* @return
*/
public static boolean isWindowShowing() {
return smallWindow != null || bigView != null;
} public static void removeSmallWindow(Context context) {
if (smallWindow != null) {
WindowManager windowManager = getWindowManager(context);
windowManager.removeView(smallWindow);
smallWindow = null;
}
} /**
* 创建小的window
*/
// public void createSmallWindow() {
// mWindowManager=getWindowManager(mContext);
// screenWidth = mWindowManager.getDefaultDisplay().getWidth();
// screenHeight = mWindowManager.getDefaultDisplay().getHeight();
// if (smallView == null) {
// smallView = new SmallView(mContext);
//
//
// if (mSamllWindowParams == null) {
// mSamllWindowParams = new LayoutParams();
// mSamllWindowParams.type = LayoutParams.TYPE_PHONE;
// mSamllWindowParams.format = PixelFormat.RGBA_8888;
// mSamllWindowParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE
// | LayoutParams.FLAG_NOT_TOUCH_MODAL;
// mSamllWindowParams.gravity = Gravity.LEFT | Gravity.TOP;
// mSamllWindowParams.width = smallView.getWidth();
// mSamllWindowParams.height = smallView.getHeight();
// mSamllWindowParams.x = screenWidth;
// mSamllWindowParams.y = screenHeight/2;
// }
// smallView.setParams(mSamllWindowParams);
// mWindowManager.addView(smallView, mSamllWindowParams);
// }
//
// }
public static void createSmallWindow(Context context) {
WindowManager windowManager = getWindowManager(context);
int screenWidth = windowManager.getDefaultDisplay().getWidth();
int screenHeight = windowManager.getDefaultDisplay().getHeight();
if (smallWindow == null) {
smallWindow = new SmallView(context);
if (smallWindowParams == null) {
smallWindowParams = new LayoutParams();
smallWindowParams.type = LayoutParams.TYPE_SYSTEM_ALERT;
smallWindowParams.format = PixelFormat.RGBA_8888;
smallWindowParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
| LayoutParams.FLAG_NOT_FOCUSABLE;
smallWindowParams.gravity = Gravity.LEFT | Gravity.TOP;
smallWindowParams.width = smallWindow.viewWidth;
smallWindowParams.height = smallWindow.viewHeight;
smallWindowParams.x = screenWidth;
smallWindowParams.y = screenHeight / 2;
}
smallWindow.setParams(smallWindowParams);
windowManager.addView(smallWindow, smallWindowParams);
}
} private static WindowManager getWindowManager(Context context) {
if (mWindowManager == null) {
mWindowManager = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);
}
return mWindowManager;
} /**
* 计算已使用内存的百分比
*
* @return
*/
public static String getUserPercent(Context context) {
String dir = "/proc/meminfo";
try {
// FileReader fr=new FileReader(dir);
// BufferedReader br = new BufferedReader(fr, 2048);
// String data = br.readLine();
// String subMemoryLine = data.substring(data.indexOf("MemTotal:"));
// br.close();
// long totalMemorySize =
// Integer.parseInt(subMemoryLine.replaceAll("\\D+", ""));
// long avaliableMemory= getAvalibaleMemory(context)/1024;
// int
// percent=(int)((totalMemorySize-avaliableMemory)/((float)totalMemorySize*100));
// return percent+"%";
FileReader fr = new FileReader(dir);
BufferedReader br = new BufferedReader(fr, 2048);
String memoryLine = br.readLine();
String subMemoryLine = memoryLine.substring(memoryLine
.indexOf("MemTotal:"));
br.close();
long totalMemorySize = Integer.parseInt(subMemoryLine.replaceAll(
"\\D+", ""));
long availableSize = getAvalibaleMemory(context) / 1024;
int percent = (int) ((totalMemorySize - availableSize)
/ (float) totalMemorySize * 100);
return percent + "%"; } catch (Exception e) {
e.printStackTrace();
} return "悬浮窗"; } /**
* 返回可用的内存
*
* @param context
* @return
*/
private static long getAvalibaleMemory(Context context) {
MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
getActivityManager(context).getMemoryInfo(memoryInfo);
return memoryInfo.availMem;
} private static ActivityManager getActivityManager(Context context) {
if (mActivityManager == null) {
mActivityManager = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
}
return mActivityManager;
} public static void updatePercent(Context context) {
if (smallWindow != null) {
((TextView) smallWindow.findViewById(R.id.tv_small_percent))
.setText(getUserPercent(context));
}
} public static void createBigView(Context context) {
WindowManager windowManager = getWindowManager(context);
int screenWidth = windowManager.getDefaultDisplay().getWidth();
int screenHeight = windowManager.getDefaultDisplay().getHeight();
if (bigView == null) {
bigView = new BigView(context);
if (bigWindowParams == null) {
bigWindowParams = new LayoutParams();
bigWindowParams.x = screenWidth / 2 - BigView.viewWidth / 2;
bigWindowParams.y = screenHeight / 2 - BigView.viewHeight / 2;
bigWindowParams.type = LayoutParams.TYPE_PHONE;
bigWindowParams.format = PixelFormat.RGBA_8888;
bigWindowParams.gravity = Gravity.LEFT | Gravity.TOP;
bigWindowParams.width = BigView.viewWidth;
bigWindowParams.height = BigView.viewHeight;
}
windowManager.addView(bigView, bigWindowParams);
} } /**
* 将大悬浮窗从屏幕上移除。
*
* @param context
* 必须为应用程序的Context.
*/
public static void removeBigWindow(Context context) {
if (bigView != null) {
WindowManager windowManager = getWindowManager(context);
windowManager.removeView(bigView);
bigView = null;
}
} // 火箭---------------
/**
* 创建小火箭
*
* @param context
*/
// public static void createRocketWindow(Context context) {
// WindowManager windowManager = getWindowManager(context);
// int screenWidth = windowManager.getDefaultDisplay().getWidth();
// int screenHeight = windowManager.getDefaultDisplay().getHeight();
// if (mRocketLauncher == null) {
// mRocketLauncher = new RocketLauncher(context);
// if (mRocketWindowParams == null) {
// mRocketWindowParams = new LayoutParams();
// mRocketWindowParams.x = screenWidth / 2 - mRocketLauncher.mRocketWith/2;
// mRocketWindowParams.y = screenHeight - mRocketLauncher.mRocketHeight;
//
// mRocketWindowParams.type = LayoutParams.TYPE_PHONE;
// mRocketWindowParams.format = PixelFormat.RGBA_8888;
// mRocketWindowParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
// | LayoutParams.FLAG_NOT_FOCUSABLE;
// mRocketWindowParams.gravity = Gravity.LEFT | Gravity.TOP;
// mRocketWindowParams.width = mRocketLauncher.mRocketWith;
// mRocketWindowParams.height = mRocketLauncher.mRocketHeight;
// }
// windowManager.addView(mRocketLauncher, mRocketWindowParams);
// }
// }
//
/**
* 创建一个火箭发射台，位置为屏幕底部。 */
public static void createRocketWindow(Context context) {
WindowManager windowManager = getWindowManager(context);
int screenWidth = windowManager.getDefaultDisplay().getWidth();
int screenHeight = windowManager.getDefaultDisplay().getHeight();
if (mRocketLauncher == null) {
mRocketLauncher = new RocketLauncher(context);
if (mRocketWindowParams == null) {
mRocketWindowParams = new LayoutParams();
mRocketWindowParams.x = screenWidth / 2 - RocketLauncher.mRocketWith / 2;
mRocketWindowParams.y = screenHeight - RocketLauncher.mRocketHeight;
mRocketWindowParams.type = LayoutParams.TYPE_PHONE;
mRocketWindowParams.format = PixelFormat.RGBA_8888;
mRocketWindowParams.gravity = Gravity.LEFT | Gravity.TOP;
mRocketWindowParams.width = RocketLauncher.mRocketWith;
mRocketWindowParams.height = RocketLauncher.mRocketHeight;
}
windowManager.addView(mRocketLauncher, mRocketWindowParams);
}
} /**
* 移除小火箭l
*
* @param context
*/
public static void removeRocketWindow(Context context) {
WindowManager windowManager = getWindowManager(context);
if (mRocketLauncher != null) {
windowManager.removeView(mRocketLauncher);
mRocketLauncher = null;
}
} /**
* 更新火箭发射台的显示状态。 */
public static void updateLauncher() {
if (mRocketLauncher != null) {
mRocketLauncher.updateRocketLaucher(isReadyToLaunch());
}
} /**
* 推断小火箭是否准备好发射了。 *
* @return 当火箭被发到发射台上返回true，否则返回false。
*/
public static boolean isReadyToLaunch() {
if ((smallWindowParams.x > mRocketWindowParams.x && smallWindowParams.x
+ smallWindowParams.width < mRocketWindowParams.x
+ mRocketWindowParams.width)
&& (smallWindowParams.y + smallWindowParams.height > mRocketWindowParams.y)) {
return true;
}
return false;
} }
package com.pzf.flow; import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
/**
* 小火箭的launcer的布局类。此处须要注意mRocketWith。mRocketHeight这两个字段须要public供外界使用，由于在你移动悬浮框的时候须要显示小火箭。这时候须要小火箭的宽和高
* @author pangzf
* @time 2014年10月11日 上午11:22:32
*/
public class RocketLauncher extends LinearLayout { public static int mRocketWith;
public static int mRocketHeight;
private ImageView mRocket; public RocketLauncher(Context context) {
super(context);
LayoutInflater.from(context).inflate(R.layout.launcher, this);
mRocket = (ImageView) findViewById(R.id.launcher_img);
mRocketWith = mRocket.getLayoutParams().width;
mRocketHeight = mRocket.getLayoutParams().height;
}
/**
* 是否是发射状态
* @param isReadyLaunch
*/
public void updateRocketLaucher(boolean isReadyLaunch){
mRocket.setImageResource(isReadyLaunch?R.drawable.launcher_bg_fire:R.drawable.launcher_bg_hold);
} }
package com.pzf.flow; import java.lang.reflect.Field; import android.content.Context;
import android.os.AsyncTask;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
* 悬浮框类
* 1.显示内存使用情况
* 2.移动悬浮框，位置改变 OnTouch();
* 3.移动小悬浮框，变成小火箭 updateView() updateStatus();
* 4.移动到发射台，小火箭发射 LaunchTask
* @author pangzf
* @time 2014年10月11日 上午11:23:48
*/
public class SmallView extends LinearLayout { private Context mContext;
private int statusBarHeight;
private float mXInView;
private float mYInView;
private float mXDownInScreen;
private float mYDownInScreen;
private float mXInScreen;
private float mYInScreen;
/**
* 小悬浮窗的參数
*/
private WindowManager.LayoutParams mParams;
public int viewWidth;
public int viewHeight;
private WindowManager mWindowManager;
private LinearLayout view;
private boolean isPressed;
private ImageView mIvRocket;
private int rocketWidth;
private int rocketHeight; public SmallView(Context context) {
super(context);
this.mContext=context;
mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
LayoutInflater.from(context).inflate(R.layout.small, this);
view = (LinearLayout) findViewById(R.id.ll_small_main);
viewWidth = view.getLayoutParams().width;
viewHeight = view.getLayoutParams().height; mIvRocket = (ImageView) findViewById(R.id.rocket_img);
rocketWidth = mIvRocket.getLayoutParams().width;
rocketHeight = mIvRocket.getLayoutParams().height; TextView mTvPercent = (TextView) view
.findViewById(R.id.tv_small_percent);
mTvPercent.setText(MyWindowManager.getUserPercent(context));
} /**
* 将小悬浮窗的參数传入，用于更新小悬浮窗的位置。 *
* @param params
* 小悬浮窗的參数
*/
public void setParams(WindowManager.LayoutParams params) {
mParams = params;
} // 做单击处理和移动small位置
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: isPressed=true;
mXInView = event.getX();
mYInView = event.getY();
mXDownInScreen = event.getRawX();
mYDownInScreen = event.getRawY() - getStatusBarHeight();
mXInScreen = event.getRawX();
mYInScreen = event.getRawY()-getStatusBarHeight();
break;
case MotionEvent.ACTION_MOVE:
//移动small
mXInScreen=event.getRawX();
mYInScreen=event.getRawY() - getStatusBarHeight();
updateStatus();
updateView();
break;
case MotionEvent.ACTION_UP:
isPressed=false;
if(MyWindowManager.isReadyToLaunch()){
//发射小火箭
launchRocket();
}else{
updateStatus();
//推断点击事件
if(mXDownInScreen==mXInScreen&&mYDownInScreen==mYInScreen){
//打开big
openBigWindow();
}
} break; default:
break;
}
return true;
}
/**
* 发射小火箭
*/
private void launchRocket() {
MyWindowManager.removeRocketWindow(getContext());
new LuanchTask().execute();
} private class LuanchTask extends AsyncTask<Void, Void, Void>{ @Override
protected Void doInBackground(Void... params) {
while(mParams.y>0){
mParams.y=mParams.y-10;
publishProgress();
SystemClock.sleep(8);
}
return null;
} @Override
protected void onProgressUpdate(Void... values) {
//依据进度更新小火箭的位置，实现发射效果
mWindowManager.updateViewLayout(SmallView.this, mParams);
} @Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// 火箭升空结束后。回归到悬浮窗状态
updateStatus();
mParams.x = (int) (mXDownInScreen - mXInView);
mParams.y = (int) (mYDownInScreen - mYInView);
mWindowManager.updateViewLayout(SmallView.this, mParams); } } /**
* 更改小火箭的状态
*/
private void updateStatus() {
//假设是按下的状态，并且小火箭是不存在的，则显示小火箭。隐藏悬浮框
if(isPressed&&mIvRocket.getVisibility()!=View.VISIBLE){
mParams.width=rocketWidth;
mParams.height=rocketHeight;
mWindowManager.updateViewLayout(this, mParams);
view.setVisibility(View.GONE);
mIvRocket.setVisibility(View.VISIBLE);
MyWindowManager.createRocketWindow(getContext());
}else if(!isPressed){
//显示悬浮框，隐藏小火箭
mParams.width=viewWidth;
mParams.height=viewHeight;
mWindowManager.updateViewLayout(this, mParams);
view.setVisibility(View.VISIBLE);
mIvRocket.setVisibility(View.GONE);
MyWindowManager.removeRocketWindow(getContext());
}
} /**
* 打开大悬浮窗。同一时候关闭小悬浮窗。
*/
private void openBigWindow() {
MyWindowManager.createBigView(getContext());
MyWindowManager.removeSmallWindow(getContext());
} /**
* 移动samll在屏幕上的位置
*/
private void updateView() {
mParams.x=(int) (mXInScreen-mXInView);
mParams.y=(int) (mYInScreen-mYInView);
mWindowManager.updateViewLayout(this, mParams);
MyWindowManager.updateLauncher();
} /**
* 获得状态栏的高度
*
* @return
*/
private float getStatusBarHeight() {
if (statusBarHeight == 0) { try { Class<?> clazz = Class.forName("com.android.internal.R$dimen");
Object o = clazz.newInstance();
Field field = clazz.getField("status_bar_height");
Integer size = (Integer) field.get(o);
statusBarHeight = getResources().getDimensionPixelSize(size);
} catch (Exception e) {
e.printStackTrace();
} }
return statusBarHeight;
} }
效果图
watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcGFuZ3phaWZlaQ==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="">
源代码地址：点击打开链接
个人项目txtreader:已经公布google play，http://blog.csdn.net/pangzaifei/article/details/52756777
有须要的能够联系
Launcher知识的demo，手机管家小伙家与悬浮窗的更多相关文章
- 手机QQ后台清理不掉的秘密——anddroid悬浮窗
问题来自于一篇文章:手机QQ后台为何清不掉?MIUIproject师:全靠1像素的页面保命 出于好奇,想知道这一像素究竟是啥东西,用手机安全管家控制QQ的悬浮窗权限: 关闭QQ的悬浮窗权限,通过后台一 ...
- 简易的可拖动的桌面悬浮窗效果Demo
首先,我们需要知道,悬浮窗分为两种:Activity级别的悬浮窗,系统级别的悬浮窗 Activity级别的悬浮窗跟随所属Activity的生命周期而变化,而系统级别的悬浮窗则可以脱离Activity而 ...
- Android手机安全软件的恶意程序检测靠谱吗--LBE安全大师、腾讯手机管家、360手机卫士恶意软件检测方法研究
转载请注明出处,谢谢. Android系统开放,各大论坛活跃,应用程序分发渠道广泛,这也就为恶意软件的传播提供了良好的环境.好在手机上安装了安全软件,是否能有效的检测出恶意软件呢?下边针对LBE安全大 ...
- 【课程汇总】OpenHarmony全场景Demo数字管家系列课（附链接）
小孩放学了,做作业的时间到,窗帘.护眼灯自动打开,关掉电视和扫地机,给小孩一个安静舒适的学习环境:碰到学习难题,可以随时请求你的远程指导:晚上回家休息了,选择舒适的氛围灯,伴随着睡眠音乐进入梦乡:出门 ...
- 手机管家iPhoneX的适配总结
WeTest 导读 随着苹果发布会的结束,Xcode的GM版也上线了,也意味着iPhoneX适配之旅的开始. 一.设计关注篇 注意设计的基本原则:(苹果呼吁的) 规格原帖:https://develo ...
- Android仿腾讯手机管家实现桌面悬浮窗小火箭发射的动画效果
功能分析: 1.小火箭游离在activity之外,不依附于任何activity,不管activity是否开启,不影响小火箭的代码逻辑,所以小火箭的代码逻辑是要写在服务中: 2.小火箭挂载在手机窗体之上 ...
- android桌面悬浮窗仿QQ手机管家加速效果
主要还是用到了WindowManager对桌面悬浮进行管理. 需要一个火箭的悬浮窗 一个发射台悬浮窗 ,判断火箭是否放到了发射台,如果放上了,则使用AsyTask 慢慢将火箭的图片往上移.结束后., ...
- Android仿360手机卫士悬浮窗效果
请看下图: 首先是一个小的悬浮窗显示的是当前使用了百分之多少的内存,点击一下小悬浮窗,就会弹出一个大的悬浮窗,可以一键加速.好,我们现在就来模拟实现一下 ...
- Android 桌面悬浮窗效果实现，仿360手机卫士悬浮窗效果
首先是一个小的悬浮窗显示的是当前使用了百分之多少的内存,点击一下小悬浮窗,就会弹出一个大的悬浮窗,可以一键加速.好,我们现在就来模拟实现一下类似的效果. 先谈一下基本的实现原理,这种桌面悬浮窗的效果很 ...
随机推荐
- JavaScript系列----面向对象的JavaScript(1)
1.面向对象的编程 1.1.什么是面向对象编程 面向对象编程:即是把能够完成独立完成一部分功能的代码封装在一起,组成一个类. 举个例子来说: 这里有一把枪, 枪的种类很多,有步枪,机关枪,阻击枪... ...
- JS中的循环---最全的循环总结
在讲循环的之前,先知道一下循环结构的执行步骤 1.声明循环变量: 2.判断循环条件; 3.执行循环体操作: 4.更新循环变量: 5.然后循环执行2-4,直到条件不成立,跳出循环. 1while循环 v ...
- 微信小程序入门（前言）
最近接到一个开发微信小程序的任务,由于没有开发过小程序,所以只能查看官方文档.查找相关博文.资料来开发. 微信小程序一开始出现就受到热烈的追捧,因为其"无需安装.用完即走"的理念确 ...
- CLR类型设计之类型之常量和字段
前言 孔子说:温故而知新,可以为师矣.所以对于学习过的知识要多复习,并且每一次复习都要尽可能的去扩展,而不是书本上的几句理论知识.很多人都喜欢分享自己的学习内容,记录下生活的点点滴滴 ...
- Go环境搭建
Linux系统golang环境搭建 1.下载安装包go1.8.linux-amd64.tar golang安装包下载地址:https://golang.org/dl/ ( 有可能被FQ) 2.解 ...
- 关于apidoc文档生成不了的一个原因
前几天在写完API后,写注释文档,然后很习惯的去用apidoc取生成注释文档,但是奇怪的事发生了,没有注释的内容,也没有报错:注释代码如下: /* * @api {get} /applet/:id 根 ...
- 题目1083：特殊乘法-九度oj
题目描述: 写个算法,对2个小于1000000000的输入,求结果. 特殊乘法举例:123 * 45 = 1*4 +1*5 +2*4 +2*5 +3*4+3*5 输入: 两个小于1000000000的 ...
- UEditor1.4.3.3实现图片上传、删除功能
1.下载ueditor1.4.3.3 UTF-8的版本 2.新建一个项目,在项目中添加UEditor,把下载好的插件都放在ueditor这个文件夹中,在进行一些基本的配置 3.在根目录下新建一个为in ...
- JavaScript学习笔记（十五）——对象之Date，RegExp
在学习廖雪峰前辈的JavaScript教程中,遇到了一些需要注意的点,因此作为学习笔记列出来,提醒自己注意! 如果大家有需要,欢迎访问前辈的博客https://www.liaoxuefeng.com/ ...
- Unity3D手机斗地主游戏开发实战（04）_出牌判断大小（已完结）
之前我们实现了叫地主.玩家和电脑自动出牌主要功能,但是还有个问题,出牌的时候,没有有效性检查和比较牌力大小.比如说,出牌3,4,5,目前是可以出牌的,然后下家可以出任何牌如3,6,9. 问题1:出牌检 ...