在使用WP-Statistics统计插件的时候,提示GeoIP需要 php-curl扩展。搜索了一下,安装方式如下:
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$ sudo apt-get install php5-curl |
安装完成后,需要重启Apache2
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$ sudo service apache2 restart |
在使用WP-Statistics统计插件的时候,提示GeoIP需要 php-curl扩展。搜索了一下,安装方式如下:
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$ sudo apt-get install php5-curl |
安装完成后,需要重启Apache2
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$ sudo service apache2 restart |
之前在webkit上开发一个滚动控件,需要完成的是一段文字,上下键可以滚动,且自定义滚动条。第一想法就是浏览器原生overflow:scroll,且webkit支持自定义滚动条样式:
webkit自定义滚动条样式:
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/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/ ::-webkit-scrollbar { width: 0.05rem; height:1rem; background-color: transparent; } /*定义滚动条轨道 内阴影+圆角*/ ::-webkit-scrollbar-track { background-color: transparent; } /*定义滑块 内阴影+圆角*/ ::-webkit-scrollbar-thumb { border-radius: 0.1rem; /*-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,.3);*/ background-color: rgba(255,255,255,0.6); } |
后来换了个引擎,发现其他引擎不支持自定义滚动条,那就满足不了UED的要求了。来同事推荐使用IScroll,用了一下,确实比较方便,与平台无关,可操作的属性还有性能都很理想,记录一下:
首先看官方文档 https://iiunknown.gitbooks.io/iscroll-5-api-cn/content/versions.html
github地址:https://github.com/cubiq/iscroll
demo:http://cubiq.org/dropbox/iscroll4/examples/simple/
直接拿demo中的iscroll.js套到自己的工程上,一个段落就是一个li,new 一下就完事了,滚动拖动也很happy。然后发现,我按上下方向键没有响应。
IScroll按键事件绑定:
查源码看iscroll的事件处理,都在handleEvent函数里面
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handleEvent: function (e) { var that = this; switch(e.type) { case START_EV: if (!hasTouch && e.button !== 0) return; that._start(e); break; case MOVE_EV: that._move(e); break; case END_EV: case CANCEL_EV: that._end(e); break; case RESIZE_EV: that._resize(); break; case WHEEL_EV: that._wheel(e); break; case 'mouseout': that._mouseout(e); break; case TRNEND_EV: that._transitionEnd(e); break; } } |
根本就没有keyEvent,看来偷懒是不行的,官方文档看一下,原来iscroll有5个版本,各自平台都是不一样的,demo中这个估计是移动平台用的iscroll-lite版本,移动平台根本不鸟方向键的。
去github上down下来源码,找了找,build目录下,5个版本都有。用最原始的common版本,这个版本的handleEvent就丰富多了:
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handleEvent: function (e) { switch ( e.type ) { case 'touchstart': case 'pointerdown': case 'MSPointerDown': case 'mousedown': this._start(e); break; case 'touchmove': case 'pointermove': case 'MSPointerMove': case 'mousemove': this._move(e); break; case 'touchend': case 'pointerup': case 'MSPointerUp': case 'mouseup': case 'touchcancel': case 'pointercancel': case 'MSPointerCancel': case 'mousecancel': this._end(e); break; case 'orientationchange': case 'resize': this._resize(); break; case 'transitionend': case 'webkitTransitionEnd': case 'oTransitionEnd': case 'MSTransitionEnd': this._transitionEnd(e); break; case 'wheel': case 'DOMMouseScroll': case 'mousewheel': this._wheel(e); break; case 'keydown': this._key(e); break; case 'click': if ( !e._constructed ) { e.preventDefault(); e.stopPropagation(); } break; } } |
然后套用上去,可以支持方向键了。中间遇到两个小问题,第一个是按键一直没反应,检查下是z-index太小,keyEvent被上层元素拿走了;第二个是只有在#warpper拿到focus的时候才响应按键,但我用的引擎不支持focus,这个也不难,页面强行绑定handleEvent:
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document.addEventListener("keydown", function(evt) { if (evt.keyCode === keyCodes.ENTER) { } else { myScroll && myScroll.handleEvent(evt); } }, false); |
然后整个页面随便按什么键,都可以响应了。接下来就是滚动条样式的问题了,这个也简单,跟着官方文档&样例走就行
http://lab.cubiq.org/iscroll5/demos/styled-scrollbars/
关键步骤有三个:
1.option
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myScroll = new IScroll(document.getElementById('wrapper'), { keyBindings: true, // 绑定按键事件 scrollbars: 'custom', // 自定义样式 resizeScrollbars: false // 是否自动缩放滚动条 }); |
设置了scrollbars: 'custom',在页面的Elements就可以找到
<div class="iScrollVerticalScrollbar iScrollLoneScrollbar" ></div>
里面还包含了
<div class="iScrollIndicator" ></div>
第一个是滚动区域,第二个是滚动条。拿到Element就好办了,css给定样式:
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.iScrollVerticalScrollbar { position: absolute; z-index: 9999; width: 0.1rem; bottom: 2px; top: 2px; right: 0; overflow: hidden; } .iScrollIndicator { position: absolute; width: 0.08rem; height: 0.3rem; background: rgba(255,255,255,0.6); border-radius: 0.1rem; } |
大功告成!
当然,IScroll不止这点功能,官方文档后面还有无限滚动等高级用法,以后用到再添加。
WordPress的使用很方便,但是文章的点击浏览量默认是没有的,本文介绍用WP-PostViews实现网站上显示文章的浏览量的功能。效果如下图所示:
在插件界面中安装WP-PostViews插件,并且启用插件。
修改content.php,找到如下代码:
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<div class="entry-meta"> <?php if ( 'post' == get_post_type() ) twentyfourteen_posted_on(); if ( ! post_password_required() && ( comments_open() || get_comments_number() ) ) : ?> <span class="comments-link"><?php comments_popup_link( __( 'Leave a comment', 'twentyfourteen' ), __( '1 Comment', 'twentyfourteen' ), __( '% Comments', 'twentyfourteen' ) ); ?></span> <?php endif; edit_post_link( __( 'Edit', 'twentyfourteen' ), '<span class="edit-link">', '</span>' ); ?> </div><!-- .entry-meta --> |
在后面添加:
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<?php /*View Counter for wp-postviews*/ if(function_exists('the_views')) { the_views(); } ?> |
修改后的结果如下:
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<div class="entry-meta"> <?php if ( 'post' == get_post_type() ) twentyfourteen_posted_on(); if ( ! post_password_required() && ( comments_open() || get_comments_number() ) ) : ?> <span class="comments-link"><?php comments_popup_link( __( 'Leave a comment', 'twentyfourteen' ), __( '1 Comment', 'twentyfourteen' ), __( '% Comments', 'twentyfourteen' ) ); ?></span> <?php endif; edit_post_link( __( 'Edit', 'twentyfourteen' ), '<span class="edit-link">', '</span>' ); ?> <?php /*View Counter for wp-postviews*/ if(function_exists('the_views')) { the_views(); } ?> </div><!-- .entry-meta --> |
修改content.php,找到如下代码:
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<footer class="entry-footer"> <?php twentyfifteen_entry_meta(); ?> <?php edit_post_link( __( 'Edit', 'twentyfifteen' ), '<span class="edit-link">', '</span>' ); ?> </footer><!-- .entry-footer --> |
在后面添加:
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<?php /*View Counter for wp-postviews*/ if(function_exists('the_views')) { the_views(); } ?> |
修改后的结果如下:
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<footer class="entry-footer"> <?php twentyfifteen_entry_meta(); ?> <?php edit_post_link( __( 'Edit', 'twentyfifteen' ), '<span class="edit-link">', '</span>' ); ?> <?php /*View Counter for wp-postviews*/ if(function_exists('the_views')) { the_views(); } ?> </footer><!-- .entry-footer --> |
LMbench是个可移植的,用于评价系统综合性能的多平台开源benchmark,能够测试包括文档读写、内存操作、进程创建销毁开销、网络等性能。通过以下步骤操作,即可将LMbench移植到Android上。
下载地址http://sourceforge.net/projects/lmbench/
也可在本站下载
1.解压缩到指定的目录,保证最终的目录如下:
├── lmbench3/
│ ├── jni/
│ ├── doc/
│ ├── result/
│ ├── scripts/
│ ├── src/
│ ├── ACKNOWLEDGEMENTS
│ ├── CHANGES
│ ├── COPYING
│ ├── COPYING-2
│ ├── hbench-REBUTTAL
│ ├── Makefile
│ ├── README
2.修改“src/bench.h”的38行,40行,注释掉“#include <rpc/rpc.h>”,“#include <rpc/types.h>”,然后添加如下定义
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#ifndef S_IREAD #define S_IREAD S_IRUSR #endif #ifndef S_IWRITE #define S_IWRITE S_IWUSR #endif |
3.添加根目录下面Android.mk,jni/目录下面内容如下:
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# Copyright (C) 2008 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. BUILD_LMBENCH := true include $(call all-subdir-makefiles) |
4.添加根目录下面Android.mk,jni/src目录下面内容如下:
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# Copyright (C) 2008 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. ifeq ($(BUILD_LMBENCH),true) LOCAL_PATH := $(call my-dir) COMMON_CFLAGS := -DANDROID -DHAVE_uint COMMON_LIBS := lmbench_lib ANDROID_LMBENCH := true # Build lmbench_lib include $(CLEAR_VARS) LOCAL_SRC_FILES := lib_unix.c lib_timing.c \ lib_mem.c lib_stats.c lib_debug.c getopt.c lib_sched.c ifneq ($(ANDROID_LMBENCH),true) LOCAL_SRC_FILES := $(LOCAL_SRC_FILES) lib_tcp.c lib_udp.c endif LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lmbench_lib include $(BUILD_STATIC_LIBRARY) # # Build mhz on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= mhz.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := mhz include $(BUILD_EXECUTABLE) # # Build bw_file_rd on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= bw_file_rd.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := bw_file_rd include $(BUILD_EXECUTABLE) # # Build bw_mem on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= bw_mem.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := bw_mem include $(BUILD_EXECUTABLE) # # Build bw_mmap_rd on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= bw_mmap_rd.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := bw_mmap_rd include $(BUILD_EXECUTABLE) # # Build bw_pipe on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= bw_pipe.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := bw_pipe include $(BUILD_EXECUTABLE) ifneq ($(ANDROID_LMBENCH),true) # # Build bw_tcp on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= bw_tcp.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := bw_tcp include $(BUILD_EXECUTABLE) endif # # Build bw_unix on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= bw_unix.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := bw_unix include $(BUILD_EXECUTABLE) # # Build lat_cmd on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_cmd.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_cmd include $(BUILD_EXECUTABLE) ifneq ($(ANDROID_LMBENCH),true) # # Build lat_connect on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_connect.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_connect include $(BUILD_EXECUTABLE) endif # # Build lat_ctx on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_ctx.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_ctx include $(BUILD_EXECUTABLE) # # Build lat_fcntl on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_fcntl.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_fcntl include $(BUILD_EXECUTABLE) # # Build lat_fs on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_fs.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_fs include $(BUILD_EXECUTABLE) # # Build lat_mem_rd on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_mem_rd.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_mem_rd include $(BUILD_EXECUTABLE) # # Build lat_mmap on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_mmap.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_mmap include $(BUILD_EXECUTABLE) # # Build lat_ops on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_ops.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_ops include $(BUILD_EXECUTABLE) # # Build lat_pipe on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_pipe.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_pipe include $(BUILD_EXECUTABLE) # # Build lat_pagefault on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_pagefault.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_pagefault include $(BUILD_EXECUTABLE) # # Build lat_proc on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_proc.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_proc include $(BUILD_EXECUTABLE) # # Build lat_rand on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_rand.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_rand include $(BUILD_EXECUTABLE) ifneq ($(ANDROID_LMBENCH),true) # # Build lat_tcp on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_tcp.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_tcp include $(BUILD_EXECUTABLE) endif ifneq ($(ANDROID_LMBENCH),true) # # Build lat_sem on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_sem.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_sem include $(BUILD_EXECUTABLE) endif # # Build lat_sig on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_sig.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_sig include $(BUILD_EXECUTABLE) # # Build lat_syscall on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_syscall.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_syscall include $(BUILD_EXECUTABLE) ifneq ($(ANDROID_LMBENCH),true) # # Build lat_udp on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_udp.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_udp include $(BUILD_EXECUTABLE) endif # # Build lat_unix on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_unix.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_unix include $(BUILD_EXECUTABLE) # # Build lat_usleep on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_usleep.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) -DTRUE=1 -DFALSE=0 LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_usleep include $(BUILD_EXECUTABLE) # # Build cache on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= cache.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := cache include $(BUILD_EXECUTABLE) # # Build line on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= line.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := line include $(BUILD_EXECUTABLE) # # Build lmdd on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lmdd.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lmdd include $(BUILD_EXECUTABLE) # # Build tlb on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= tlb.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := tlb include $(BUILD_EXECUTABLE) # # Build stream on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= stream.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lmstream include $(BUILD_EXECUTABLE) # # Build memsize on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= memsize.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := memsize include $(BUILD_EXECUTABLE) ifneq ($(ANDROID_LMBENCH),true) # # Build lat_select on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_select.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_select include $(BUILD_EXECUTABLE) endif # # Build lat_unix_connect on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_unix_connect.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_unix_connect include $(BUILD_EXECUTABLE) # # Build lat_fifo on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_fifo.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_fifo include $(BUILD_EXECUTABLE) ifneq ($(ANDROID_LMBENCH),true) # # Build lat_http on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= lat_http.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := lat_http include $(BUILD_EXECUTABLE) endif # # Build par_mem on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= par_mem.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := par_mem include $(BUILD_EXECUTABLE) # # Build par_ops on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= par_ops.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := par_ops include $(BUILD_EXECUTABLE) # # Build enough on target # include $(CLEAR_VARS) LOCAL_SRC_FILES:= enough.c LOCAL_STATIC_LIBRARIES := $(COMMON_LIBS) LOCAL_C_INCLUDES := $(common_target_c_includes) LOCAL_CFLAGS := $(COMMON_CFLAGS) $(common_target_cflags) LOCAL_MODULE_TAGS := eng LOCAL_MODULE := enough include $(BUILD_EXECUTABLE) endif |
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ndk-build NDK_PROJECT_PATH=/lmbench3 |
编译完成后的文件存放在“lmbench3\libs\armeabi”目录下面。
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./bw_mem 16M rdwr |
更详细的命令参数,参考bw_mem
目前VirtualBox只能用命令行来建立磁盘才可以使用物理硬盘。
我们假定VirtualBox安装在“D:\Program Files\Oracle\VirtualBox”这个目录下面,要在“D:\Users\VirtualBox VMs\Ubuntu\”目录下面生成文件,则执行如下命令:
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"D:\Program Files\Oracle\VirtualBox\VBoxManage.exe" internalcommands createrawvmdk -filename "D:\Users\VirtualBox VMs\Ubuntu\Ubuntu.vmdk" -rawdisk \\.\PhysicalDrive1 |
\\.\PhysicalDrive1 表示机器上的第二块硬盘,\\.\PhysicalDrive0是第一块,\\.\PhysicalDrive2是第三块,以此类推。
在Windows 的磁盘管理中能看到硬盘的分区路径。如下图所示:
然后新建虚拟机,选择"使用已有的虚拟硬盘文件",找到刚刚创建的 Ubuntu.vmdk 即可。
对于Windows 8.1/10系统,以上的命令需要以管理员启动命令行的方式下启动并执行,否则会报告找不到磁盘。另外启动Virtual Box的时候,同样需要以管理员的身份运行,否则会出现VERR_ACCESS_DENIED
错误,如下图所示:
grunt是node环境下一个压缩、合并 js、css代码的工具,还可以做一下代码美化等。体验了一下压缩合并,还是不错的,大概流程如下:
在工程下建一个grunt目录,写两个文件 package.json-工程依赖Gruntfile.js-压缩任务
package.jsn:
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{ "name": "xxx", "version": "v0.1.0", "devDependencies": { "grunt": "^0.4.5", "grunt-contrib-concat": "~0.5.1", "grunt-contrib-cssmin": "~0.12.3", "grunt-contrib-jshint": "~0.10.0", "grunt-contrib-nodeunit": "~0.4.1", "grunt-contrib-uglify": "~0.5.0", "grunt-htmlhint": "~0.9.2" } } |
Gruntfile.js:
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module.exports = function(grunt) { // 配置参数 grunt.initConfig({ pkg:grunt.file.readJSON('package.json'), // 代码合并 concat:{ options:{ separator: ";", stripBanners: true }, dist:{ src:[ "../focusManager/base.js", "../focusManager/tween.js", "../focusManager/widget.js", "../focusManager/yunos.js" ], dest: "dest/focusManager.js" } }, // 代码压缩 uglify:{ options:{ }, dist:{ files:{ "dest/focusManager-min.js" : "dest/focusManager.js" } } }, // css压缩 cssmin: { options: { keepSpecialComments: 0 }, compress:{ files:{ "dest/default.css": [ "../focusManager/base.css", "../focusManager/reset.css" ] } } } }); // 载入concat、uglify、cssmin插件,进行压缩 grunt.loadNpmTasks('grunt-contrib-concat'); grunt.loadNpmTasks('grunt-contrib-uglify'); grunt.loadNpmTasks('grunt-contrib-cssmin'); // 注册任务 grunt.registerTask('default', ['concat', 'uglify', 'cssmin']); }; |
这个Gruntfile很容易理解,想要压缩的文件以及目标文件写好就行,还有另一种自动化的写法,后面再说。
之后运行命令,grunt
出现了一个错误,网上解释
Note that installing grunt-cli does not install the grunt task runner! The job of the grunt CLI is simple: run the version of grunt which has been installed next to a Gruntfile. This allows multiple versions of grunt to be installed on the same machine simultaneously.
So in your project folder, you will need to install (preferably) the latest grunt version:
也就是说,之前装的grunt-cli只是grunt的运行环境,在工程目录下,还需要装一下grunt,运行一下命令:
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$npm install grunt --save-dev Option --save-dev will add grunt as a dev-dependency to your package.json. This makes it easy to reinstall dependencies. |
之后再次运行grunt命令,又出现错误:
好吧,没有装这三个插件?原来是grunt一样,也要在工程下装,分别运行 npm install装一下,运行,成功:
工程复杂之后,肯定不会一个一个手动填文件,grunt也可以通过逻辑自动压缩js css文件,Gruntfile.js写法:
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module.exports = function(grunt) { // 任务配置 grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), // 压缩JS uglify: { // 文件头部输出信息 options: { banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n' }, my_target: { files: [ { expand: true, // 相对路径 cwd: '../focusManager', src: ['*.js', '**/*.js'], // src:['**/*.js', '!**/*.min.js'] 多个src的写法以及不包括哪些js dest: 'dest/js/', rename: function (dest, src) { var folder = src.substring(0, src.lastIndexOf('/')); var filename = src.substring(src.lastIndexOf('/'), src.length); filename = filename.substring(0, filename.lastIndexOf('.')); var resultname = dest + folder + filename + '-min.js'; grunt.log.writeln("正在处理文件:" + src + " 处理后文件:" + resultname); return resultname; } } ] } }, // 压缩css cssmin: { // 文件头部输出信息 options: { banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n', // 美化代码 beautify: { // 防止乱码 ascii_only: true } }, my_target: { files: [ { expand: true, // 相对路径 cwd: '../focusManager', src: '*.css', // src:['**/*.js', '!**/*.min.js'] 多个src的写法以及不包括哪些js dest: 'dest/css/', rename: function (dest, src) { var folder = src.substring(0, src.lastIndexOf('/')); var filename = src.substring(src.lastIndexOf('/'), src.length); filename = filename.substring(0, filename.lastIndexOf('.')); var resultname = dest + folder + filename + '-min.css'; grunt.log.writeln("正在处理文件:" + src + " 处理后文件:" + resultname); return resultname; } } ] } } }); // 加载模块 grunt.loadNpmTasks('grunt-contrib-uglify'); grunt.loadNpmTasks('grunt-contrib-cssmin'); grunt.registerTask('default', ['uglify', 'cssmin']); }; |
逻辑也很简单,就是把src里面的文件,压缩,生成文件会经过rename函数处理。
这里面需要注意的地方有
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src: ['*.js', '**/*.js'], |
如果只写一个*.js,是不会递归cwd目录下的所有文件的,要递归几级写到数组中就可以了,如果不想添加什么文件,加!符号-‘!*.min.js’。
当然,这次也没有一帆风顺,运行的时候遇到错误:
报错在 最后一句,
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grunt.registerTask('default', ['uglify', 'cssmin']); |
查了半天也没找到这里有什么错误,网上搜了一下,大多数是 中括号里的uglify没有引号,跟我的情况也不一样。后来仔细检查了一下代码,发现了两处拼写错误,改了后就运行通过了,也就是说,其他错误都会报到最后一句。
做了一个小小的试验,写一个空模块
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(function(){ // for test })(); |
压缩后是这样的:
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对,什么都没了。
最近有新的需求,压缩不同版本的文件,就需要开多个contact uglify任务,琢磨了一会,搞出来了,同时对grunt有了进一步的认识。
配置多任务是这么写的
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module.exports = function(grunt) { // 配置参数 grunt.initConfig({ pkg:grunt.file.readJSON('package.json'), // 代码合并 concat:{ options:{ separator: ";", stripBanners: true }, 123456: { src:[ "../../system/123.js", "../../system/456.js", "../../system/network/789.js" ], dest: "out/123456789.js" }, all: { src:[ "../../system/blitz.js", "../../system/base.js", "../../system/**/*.js", ], dest: "out/test_all.js" } }, uglify:{ 123456: { files: [ { "out/123456789.min.js" : "out/123456789.js" } ] }, all: { files: [ { "out/test_all.min.js" : "out/test_all.js" } ] }, every: { // 文件头部输出信息 //options: { // banner: '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n' //}, files: [ { expand: true, // 相对路径 cwd: '../../system', // 这里写三层,如果还有更多的再说 src: ['*.js', '**/*.js', '**/**/*.js'], // src:['**/*.js', '!**/*.min.js'] 多个src的写法以及不包括哪些js dest: './out/all/', rename: function (dest, src) { var folder = src.substring(0, src.lastIndexOf('/')); var filename = src.substring(src.lastIndexOf('/'), src.length); filename = filename.substring(0, filename.lastIndexOf('.')); var resultname = dest + folder + filename + '.min.js'; grunt.log.writeln("正在处理文件:" + src + " 处理后文件:" + resultname); return resultname; } } ] } } }); // 载入concat、uglify、cssmin插件,进行压缩 grunt.loadNpmTasks('grunt-contrib-concat'); grunt.loadNpmTasks('grunt-contrib-uglify'); //grunt.loadNpmTasks('grunt-contrib-cssmin'); // 注册任务 grunt.registerTask('default', ['concat', 'uglify']); }; |
r简单看一下配置文件
contact
首先配置了option,option中配置了不同文件中间增加;分隔符。
这个是contact所有任务的全局配置
后面又写了三个合并任务,分别配置下src和dest就可以了。
合并顺序就是 src中配置的顺序,*.js则按照字母排序。
uglify
uglify中配置了三个压缩任务,
压缩contact的文件
压缩所有文件并生成.min.js
最后运行
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grunt.registerTask('default', ['concat', 'uglify']); |
会自动加载contact和uglify中的所有任务。
来源于http://www.haorooms.com/post/qd_grunt_cssjs。
ECMAScript出现了许多有趣的新特性,梳理一下:
1.支持constant声明
ES5中,想实现constant变量必须通过修改var的property实现
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Object.defineProperty(this, "PI", { value: 3.1415926, configurable: false, writable: false }); |
2.支持块作用域声明let,
JS只有函数作用域,没有块作用域,var声明有变量提升的效果,即如果var声明了一个未声明过的变量,会自动将此声明提升到顶端,所以想实现块作用域在ES5中是通过闭包的形式。
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(function(param) {})(i); |
同时ES6也支持了块级作用域的函数
3.一种function的新写法
function中支持this的使用
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nums.forEach(function(v) { return foo(v); }); nums.forEach(v => { foo(v) }); |
4.undefined参数默认配置
ES6:
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function(x, y = 7, z = 10) { return x + y + z; } |
等效于ES5:
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function(x, y, z) { if (y === undefined) { y = 7; } if (z === undefined) { z = 10; } return x + y + z; } |
5.支持剩余参数写法
即...p写法会被解释为
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p.prototype.slice |
ES6:
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function f (x, y, ...a) { return (x + y) * a.length } f(1, 2, "hello", true, 7) === 9 |
ES5:
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function f (x, y) { var a = Array.prototype.slice.call(arguments, 2); return (x + y) * a.length; }; f(1, 2, "hello", true, 7) === 9; |
6.可以直接在字符串中加入${表达式}
即console.log("Error: ${e.toString()}");
7.引用
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//lib/math.js export function sum(x, y) {return x + y}; export var pi = 3.1415926; //app.js import * as math from "lib/math" console.log(math.sum(math.pi, math.pi);); |
8.支持class 继承,setter、getter
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class Shape { constructor (id, x, y) { this.id = id; this.move(x, y); } move (x, y) { this.x = x; this.y = y; } } class Rectangle extends Shape { constructor (id, x, y, width, height) { super(id, x, y); this.width = width; this.height = height; } set width(width) {this.width = width} get width() {return this.width} } class Circle extends Shape { constructor (id, x, y, radius) { super(id, x, y); this.radius = radius; } } |
9.支持Promise Generators(待学习)
10.bufferArray
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class Example { constructor (buffer = new ArrayBuffer(24)) { this.buffer = buffer } set buffer (buffer) { this._buffer = buffer this._id = new Uint32Array (this._buffer, 0, 1) this._username = new Uint8Array (this._buffer, 4, 16) this._amountDue = new Float32Array(this._buffer, 20, 1) } get buffer () { return this._buffer } set id (v) { this._id[0] = v } get id () { return this._id[0] } set username (v) { this._username[0] = v } get username () { return this._username[0] } set amountDue (v) { this._amountDue[0] = v } get amountDue () { return this._amountDue[0] } } let example = new Example() example.id = 7 example.username = "John Doe" example.amountDue = 42.0 |
Android Studio 1.4主工程中使用gradle:1.3.0,编译NDK,其中生成两个文件,一个是.so的动态链接库,另一个是可执行程序,没有扩展名,在最后生成的APK中没有包含非".so"后缀的文件。这个问题纠结了好久,最后追踪到了Android Studio对应的Gradle代码文件中。发现在
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Android Studio\gradle\m2repository\com\android\tools\build\builder\1.3.0\builder-1.3.0-sources.jar!\com\android\builder\internal\packaging\Packager.java |
文件中有一个变量
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private static final Pattern PATTERN_NATIVELIB_EXT = Pattern.compile("^.+\\.so$",Pattern.CASE_INSENSITIVE); |
这个变量决定了最后的打包时候的过滤条件。
具体的代码如下图所示:
最后的解决方案,就是把编译之后的文件重新命名成为“.so”。
这边的build.gradle的配置如下:
(其他配置参考Android Studio 1.2 开发JNI工程)
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task ndkBuild(type: Exec) { def Properties localProps = new Properties() localProps.load(new FileInputStream("local.properties")) def ndk_dir=localProps['ndk.dir'] def ndk_build_cmd = "$ndk_dir/ndk-build" if (Os.isFamily(Os.FAMILY_WINDOWS)) { ndk_build_cmd = "$ndk_dir/ndk-build.cmd" } if(ndkBuild_Debug_Enabled) { commandLine ndk_build_cmd, '-j', Runtime.runtime.availableProcessors(), "NDK_PROJECT_PATH=$rootDir/app/src/main", "NDK_OUT=$buildDir/native/obj", "NDK_DEBUG=1" } else{ commandLine ndk_build_cmd, '-j', Runtime.runtime.availableProcessors(), "NDK_PROJECT_PATH=$rootDir/app/src/main", "NDK_OUT=$buildDir/native/obj" } doLast { /* com.android.build.gradle.tasks.PackageApplication->doFullTaskAction->getBuilder().packageApk *Android Studio\gradle\m2repository\com\android\tools\build\builder\1.3.0\builder-1.3.0-sources.jar!\com\android\builder\internal\packaging\Packager.java *中的过滤变量 private static final Pattern PATTERN_NATIVELIB_EXT = Pattern.compile("^.+\\.so$",Pattern.CASE_INSENSITIVE); * 不能包含名字不是SO的其他文件 */ File file = new File("$rootDir/app/src/main/libs"); File[] files = file.listFiles(new FilenameFilter() { /** * 测试指定文件是否应该包含在某一文件列表中。 * * @param dir * 被找到的文件所在的目录。 * @param name * 文件的名称。 * @return 当且仅当该名称应该包含在文件列表中时返回 true;否则返回 * false。返回true时,该文件将被允许添加到文件列表中,否则不能添加到文件列表中。 */ public boolean accept(File dir, String name) { File f = new File(dir, name); if (f.isDirectory()) { File rf = new File(f.getPath(), "Standalone"); if(rf.exists()){ return true; } return false; } else { return false;// 否则返回false。 } } }); for(File f : files) { File src_file = new File(f.getAbsolutePath(), "Standalone"); File dst_file = new File(f.getAbsolutePath(), "Standalone.so"); dst_file.delete(); src_file.renameTo(dst_file) } } } |
Windows下android-ndk-r10e执行ndk-gdb.py报告“ERROR: Non-debuggable application installed on the target device.”
使用命令:
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#ndk-gdb.py --verbose |
使用apk-tool反编译了一下APK包,AndroidManifest.xml中的“android:debuggable="true"”已经设置了,lib\armeabi目录下面也已经存在gdb.setup,gdbserver。奇怪了!使用pyScripter跟踪ndk-gdb.py,在684行附近发现,脚本找错目录了。
解决方法比较简单,拷贝一份“android-ndk-r10e\prebuilt\android-arm”,并且重新命名成为 “android-ndk-r10e\prebuilt\android-armeabi”即可。
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$DIR='./' $find $DIR -type f -print0 | xargs -0 md5sum > ./md5.txt |