root

问题 I have a text file that has values and I want to put them into a 2D vector. I can do it with arrays but I don't know how to do it with vectors. The vector size should be like vector2D[nColumns][nLines] that I don't know in advance. At the most I can have in the text file the number of columns, but not the number of lines. The number of columns could be different, from one .txt file to another. .txt example: 189.53 -1.6700 58.550 33.780 58.867 190.13 -3.4700 56.970 42.190 75.546 190.73 -1.3000

问题 In an android terminal emulator I can type the following commands: > su > echo $(</sys/class/power_supply/battery/charge_rate) and depending on how the phone is charging the output will be "None", "Normal" or "Turbo". I would like to be able to retrieve this output and store it as a string value in my program. So I've done a little bit of research into this and the code I came up with is as follows: String chargeRate = "None"; try { Runtime rt = Runtime.getRuntime(); Process process = rt.exec

问题 In an android terminal emulator I can type the following commands: > su > echo $(</sys/class/power_supply/battery/charge_rate) and depending on how the phone is charging the output will be "None", "Normal" or "Turbo". I would like to be able to retrieve this output and store it as a string value in my program. So I've done a little bit of research into this and the code I came up with is as follows: String chargeRate = "None"; try { Runtime rt = Runtime.getRuntime(); Process process = rt.exec

问题 I am using Virtual Tree View. Is there a reliable way to know if a node is root or not? I try to use if not Assigned(Node.Parent) then Output('This is root') else Output('This is not root') But does not work. I try to use if Node = tvItems.RootNode then Output('This is root') else Output('This is not root') But does not work either. 回答1: The ultimate root node in VTV (or VST ) is a special invisible node, which acts as parent for all user created root nodes (nodes created with parent = nil ).

问题 I have a text file that has values and I want to put them into a 2D vector. I can do it with arrays but I don't know how to do it with vectors. The vector size should be like vector2D[nColumns][nLines] that I don't know in advance. At the most I can have in the text file the number of columns, but not the number of lines. The number of columns could be different, from one .txt file to another. .txt example: 189.53 -1.6700 58.550 33.780 58.867 190.13 -3.4700 56.970 42.190 75.546 190.73 -1.3000

问题 I have a text file that has values and I want to put them into a 2D vector. I can do it with arrays but I don't know how to do it with vectors. The vector size should be like vector2D[nColumns][nLines] that I don't know in advance. At the most I can have in the text file the number of columns, but not the number of lines. The number of columns could be different, from one .txt file to another. .txt example: 189.53 -1.6700 58.550 33.780 58.867 190.13 -3.4700 56.970 42.190 75.546 190.73 -1.3000

问题 I can't read the file from the root directory. How to do it? I use the command for reading Java.Lang.Process suProcess = Java.Lang.Runtime.GetRuntime().Exec(new string[] { "su", "-c", "cat /data/misc/vpn/state" }); but how do I get an answer? 回答1: The Java.Lang.Process class has some interesting Streams you will need to read from. InputStream and ErrorStream . First of all, after you have created your process, you will need to wait for it. This can be done nicely with .WaitForAsync() . This

问题 App.apk programatcially runs the command: Runtime.getRuntime().exec("screenrecord", "--time-limit 5", "/sdcard/demo1.mp4") To do so, It requires permission, which also requires rooting the phone to give this app permissions. The problem is rooting puts the phone at both malfunctioning and security risks. Note: This app is not to be published, but used by one normal user. The question: Is It possible to: 1- Root the phone, then 2- Give the app this permission, then 3- Unroot the phone In other

问题 App.apk programatcially runs the command: Runtime.getRuntime().exec("screenrecord", "--time-limit 5", "/sdcard/demo1.mp4") To do so, It requires permission, which also requires rooting the phone to give this app permissions. The problem is rooting puts the phone at both malfunctioning and security risks. Note: This app is not to be published, but used by one normal user. The question: Is It possible to: 1- Root the phone, then 2- Give the app this permission, then 3- Unroot the phone In other

问题 App.apk programatcially runs the command: Runtime.getRuntime().exec("screenrecord", "--time-limit 5", "/sdcard/demo1.mp4") To do so, It requires permission, which also requires rooting the phone to give this app permissions. The problem is rooting puts the phone at both malfunctioning and security risks. Note: This app is not to be published, but used by one normal user. The question: Is It possible to: 1- Root the phone, then 2- Give the app this permission, then 3- Unroot the phone In other