每天一个adb命令：screen 命令详解

2019-11-07 23:20:13

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screen命令分为截屏screencap命令及录制视频screenrecord命令。

screencap命令：

sage: screencap [-hp] [-d display-id] [FILENAME] -h: this message -p: save the file as a png. -d: specify the display id to capture, default 0.If FILENAME ends with .png it will be saved as a png.If FILENAME is not given, the results will be PRinted to stdout.

截屏保存到sd卡：

adb shell screencap -p /sdcard/screen.png

搜了下，截屏可以直接保存到电脑上，

adb shell screencap -p | sed 's//r$//' > screen.png

但是运行后，打开生成的png文件一直是损坏状态，待研究。

但是先迂回用：先保存到手机，再pull到PC的方式。

adb shell screencap -p /sdcard/screen.pngadb pull /sdcard/screen.png ~/Desktop/

或者perl可以直接保存到pc：

adb shell screencap -p | perl -pe 's//x0D/x0A//x0A/g' > screen.png

screenrecord命令

前提：仅支持Android4.4(API level 19)以上仅支持视频格式: mp4

Usage: screenrecord [options] <filename>Android screenrecord v1.2. Records the device's display to a .mp4 file.Options:--size WIDTHxHEIGHT Set the video size, e.g. "1280x720". Default is the device's main display resolution (if supported), 1280x720 if not. For best results, use a size supported by the AVC encoder.--bit-rate RATE Set the video bit rate, in bits per second. Value may be specified as bits or megabits, e.g. '4000000' is equivalent to '4M'. Default 4Mbps.--bugreport Add additional information, such as a timestamp overlay, that is helpful in videos captured to illustrate bugs.--time-limit TIME Set the maximum recording time, in seconds. Default / maximum is 180.--verbose Display interesting information on stdout.--help Show this message.Recording continues until Ctrl-C is hit or the time limit is reached.

将录制视频保存到sdcard，默认录制时间180s，按下command+c结束录制。

adb shell screenrecord sdcard/record.mp4

录制10s，分辨率为1280*720的视频：

adb shell screenrecord --time-limit 10 --size 1280x720 /sdcard/demo.mp4

注意：尺寸使用英文字母x，不是*,否则会提示“Invalid size ‘1280*720’, must be width x height”

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