Android Studio often uses the manual

• • Use small operations frequently
    • Word selection
    • Files that show recent action changes
    • File Lookup
    • Operation Record
    • Move Line
    • Find method call at
    • Methods of follow-up
    • Show the parameters of the method
    • High-speed operation of the line
    • Multi-line operation
    • High-Speed completion complete
    • Code hints
    • High-speed operation of variables
    • Code Folding
    • Preview method definition
    • Paste Board Management
    • Split form
    • Variable naming style
    • View outline
    • Bookmark
  • High-speed reconfiguration
    • Refactoring Portal
    • Surround With
    • Extract
    • Code templates
  • Code Analysis
    • Inspect Code Code Cleanup
    • Dependencies
    • Method Call Stack
  • Breakpoint Debugging
    • High-speed breakpoints
  • Shortcut key Lookup table

Often use small-action word selection

The General IDE through the OPTION + arrow key around (win for Ctrl + LEFT and RIGHT arrow keys) on the cursor to the beating of words, but because we use the camel name more, the default will result in a number of words of the hump-style jump. Fortunately as is able to set this style.

Default effect

The effect after the change

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Change steps

Open Preferences Slice settings

Although the word is jumping, but when you want to copy the variable name double-click. Only one word in the variable name is copied. Instead of a complete string like a space cut that would have been copied on both sides. Anyway, I used a little less than a day to switch back to the original style.
But option + left and RIGHT arrow keys this little trick is cooked, than deliberately with the mouse point, or the cursor down to move to the target location will be very efficient very much.

Show recent actions, changes to the file

For example: I opened the main_activity.xml layout file and then closed the page. This time command + E, will be shown below for example the previous action file.

So suppose you want to see the previously changed files, Command + Shift + E. Ability to switch to high-speed interface with control + TAB.

Shortcut keys

Recent operations
Command + E (MAC)
CTRL + E (WIN)
Recent Changes
Command + Shift + E (MAC)
CTRL + SHIFT + E (Win)

File Lookup

Search Everywhere

Global Find feature file feature in Project

Find class file

Command + O (MAC)
CTRL + N (Win)

The default is simply to find the class file in your project code, assuming you need to find the relevant class in the SDK or class library. Press the shortcut key again, or tick the option to search for the global class file

Find Files

This level is wider than the one above. Contains all files, such as XML.

command + shift + o (mac)ctrl + shift + n (win)

If you need to search for a class library or source code, either press the shortcut key once, or tick the Find class to give the option in the diagram.

Operation Record

When browsing the code structure, there are often many classes that are always followed up, assuming that you want to go back to the point of view. Then you have to remember this shortcut.

• Command + Option + left\right or COMMAND + [, COMMAND +] (MAC)
• CTRL + ALT + Left\right (win)

Move Line

This does not have too much introduction, is the whole line of moving up and down.

Option + shift + 方向键上\方向键下 (mac)alt + shift + 方向键上\方向键下 (win)

Find method call at

Scenario: Find out where a method is called, or where an ID is referenced. Select this method to right-click on find usages.

Shortcut keys:

option + F7 (mac)alt + F7 (win)

Methods of follow-up

Methods are always accompanied by a twist, and we always look at the details inside the method. The usual way to do this is to hold command and click on the method name.

It is also possible to conduct internal follow-up of the method directly at the cursor location via command + B.

Command + B (mac)ctrl + alt + B (win)

Show the parameters of the method

When we use a method, we show the full number of references at the beginning of the start. But it may not exist in a while. At this point, let's say you want to know what the next parameter is, or see the full number of references.

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Shortcut keys:

command + P (mac)ctrl + P (win)

Suppose you also want to look at the document of the method, do not follow the source code, directly F1 the key to display the document.

High-speed operation of the line

Delete rows at high speed, in fact using the Cut function to command + X

High-speed copy line with COMMAND + DMAC, CTRL + Dwin

Multi-line operation

There may be times when we declare that a series of related variables are of type float, but the real need is the int type. At this point, multiple choices can be made for overall changes. For example, with:

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Press and hold option (Win is ALT) and then mouse over the selection of the area. Then make the appropriate changes to it.

You may think that the above must be a continuous talent enough. So suppose you can set multiple cursor points to meet your problem?

See:

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OPTION + SHIFT + mouse click (MAC)
ALT + SHIFT + mouse click (Win)
You can add an edit cursor. Finally, assume that you don't need to ESC to turn off the extra cursor.

High-Speed completion complete

Creates an object. or Findviewbyid () sometimes need to move the mouse or the cursor to the end of the semicolon to complete the completion. All of these are quick keys to fix. When you use the habit, it will be very convenient and useful.

command + shift + enter(mac)ctrl + shift + enter(win)

Features implemented

• Method body curly braces are added
• Join the line end semicolon
• Take the initiative to format the change operation, etc.

Code hints

Code hints that can be paged out wherever they are.

CONTROL + OPTION +/(not default, Mac defaults to control + space). What we're going to say here is. After the code hints, it is usually OK to enter the key. When you press the ENTER key. The content after the cursor is preserved. When sometimes we don't need to. At this point you will be able to use the table key to select. It will erase the input from the following.

Win Shortcut CTRL + SPACE (win same most and input method conflict, please manually in as settings inside Keymap item Find completion Basic manual change shortcut key)

High-speed generation of variables

For example, in the method body Logi direct high-speed generation of a log log output template, but tag this constant has not been declared. This time use the cursor to move to the tag. You can generate them at high speed by using shortcut key hints.

optionenter(mac)enter(win)

High-speed operation of variables

Two shortcuts were used,

First: Jump to the declaration of a variable

• Command + B (MAC)
• CTRL + B (Win)

Second time: Jumps to the definition of the variable type

• Command + SHIFT + B (MAC)
• CTRL + SHIFT + B (Win)

Code Folding

Collapses and expands a block of code.

• Command + PLUS sign \ Minus (MAC)
• CTRL + PLUS sign \ Minus (win)

Preview method definition

Suppose you just want to understand the definition of a method in general, without the jump display of the source code class where the method resides. Ability to preview with Command + Y (win shortcut key CTRL + SHIFT + I)

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Paste Board Management

For copy-paste. We're used to just a single c+v, so let's say you want to see the copied content that was previously overwritten. As same as have copy pasteboard to manage. Displays recent copies of the content.

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• Command + SHIFT + V (MAC)
• CTRL + SHIFT + V (win)

Split form

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You just need to right-click on the tab page. Select Split Vertical\horizontal.

Variable naming style

For member variables it should start with M. For static members, it is generally the beginning of S. This style can be set in this way.

This way, when you enter the name of a variable, you will be able to make an active complement to M or S. At the same time, when the code is extra, the generated code can be reconstructed on its own initiative according to this rule.

View outline

When a class is very large. You can open the outline interface by command + F12 (win for CTRL + F12). Displays a list of all methods and member variables.

And fuzzy search is supported. To filter the display. Ability to find the set of methods to search at high speed.

Bookmark

When browsing large code, or debugging. Sometimes you may need to remember some key code or methods. You can use bookmarks at this time. To record this critical code. Just click on the line you need to mark and press F3 to make a small tick on the left side. This means that a bookmark has been played.

At the same time in the favorites tag, you can also find the corresponding bookmarks

The bookmark panel can be pulled up by shortcut command + F3 (win for SHIFT + F11), and may be manipulated.

High-speed reconstruction reconstruction Portal

When a code fragment is ready for refactoring. You can use Control + t (win for CTRL + ALT + SHIFT + T) to open the refactoring portal. or right-click to select Refactor to display the refactoring interface.

There are a lot of handy features here. Commission method and so on.

Surround With

When a piece of code is carried out, the condition wraps, catches the exception, loops, runnable, etc. Ability to directly use shortcuts without the need to manually generate conditions in the code block copy-paste

Shortcut keys

• Command + OPTION + T (MAC)
• CTRL + ALT + T (win)

Extract

You can often use it to extract a method.

Not only that, you can also extract the same properties for multiple controls in XML as a style

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Isn't that really cool?

This is one of the only possible means for XML to extract style and to extract layout layouts

In the code, you can extract various variables, parameters, and galleries.

Code templates

As has built up a lot of code templates, you can be very recite before the end of the code. For example, the following small

Use the shortcut keys to bring up these code templates

• Command + J (MAC)
• CTRL + J (WIN)

Code Analysis

Google offers a lot of code analysis tools that are concentrated in the analyze of the top menu bar.

Inspect Code & Code cleanup

Inspect code enables the IDE to analyze the entire project. Similar to lint analysis, and will give a general change of opinion, etc.

The Code cleanup feature is capable of doing its own proactive coding repair.

Dependencies

Through several dependencies options in the Analyze. Ability to analyze project dependencies at high speed.

Method Call Stack

For some methods, it is important to look at where it is called and in the order in which it is called. The method call stack can be found by using the control + OPTION + H high speed.

Breakpoint debugging high-speed breakpoint

Conditional breakpoint. Mainly used in the circulation body. A for that loops 10 times. Just want to enter the breakpoint at the 8th time.

Like a normal breakpoint, declare a breakpoint first. Then right-click on the normal breakpoint. In the popup menu, fill in the breakpoint conditions can be. For example, the following:

In the figure above, enable enables you to control whether a breakpoint is enabled or disabled.

A temporary breakpoint. Suppose you need a breakpoint that runs only once. The breakpoint itself is canceled after the run is finished. You can then use the shortcut point to make the current row a temporary breakpoint.

• Command + OPTION + SHIFT + F8
• CTRL + ALT + SHIFT + F8

For the length is not very long, the debugging section is affixed with a very specific post that explains

• Android Studio Code Debugging Daquan

Shortcut key Lookup table

Narrative of functional description	keymap corresponding name	Mac Win	Linux
Tips on how to resolve errors	Show Intention	Actions	OPTION + Enter ALT + ENTER
As Configuration Interface	Preferences	Command +,	Control+alt+s
Project item Configuration Interface	Project Structure COMMAND +;	Control+alt+shift+s
High-speed component code	Code Generate	Command + N ALT + Insert
Code hints	Completion/basic	Control + space (Mac conflicts, manual changes)	CTRL + SPACE (win same most and input method conflict, manual change)
Select View	Select in any view	OPTION + F1	ALT + F1
Add Bookmark ID	Toggle Bookmark	OPTION + F3	CTRL + F11
Move down one line	Move line Down	OPTION + SHIFT + Down	ALT + SHIFT + Down
Move up one line	Move line up	OPTION + SHIFT + up	ALT + SHIFT + UP
Gaze code	Comment with Line Comment	Command +/	CTRL +/
Wrapping code with Code templates	Surround with Live Template	Command + OPTION + J	CTRL + ALT + J
Formatting code	Reformat Code	Command + OPTION + L	CTRL + ALT + L
Copy Reference	Copy Reference	Command + OPTION + SHIFT + C	CTRL + ALT + SHIFT + C
If/try and other parcel codes	Surround with.	Command + OPTION + T Ctrl + ALT + T
View claims	Declaration	Command + B	CTRL + B
Quickly copy rows down	Duplicate Line or Block	Command + D	CTRL + D
Delete Row	Delete Line	Command + DELETE	CTRL + Y
Quick Recent Open	Recent Files	Command + E	CTRL + E
Find	Edit/find/find	Command + F	CTRL + F
File method Structure	File Structure	Command + F12	CTRL + F12
Show bookmarks	Show Bookmarks	Command + F3	SHIFT + F11
Code highlighting down search	Move to Next Occurrence	Command + G F3
Code highlighting up find Move to Previous occurrence command + SHIFT + G SHIFT + F3
Generate code according to template	Insert Live Template	Command + J	CTRL + J
Navigate to Row	Navigate/line	Command + L	CTRL + G
High speed to beginning/end	Move Caret To Line Start/end	Command + left/right	CTRL + Left/right
Code Collapse/Expand	Collapse/expand	Command + minus/Plus	CTRL + Minus/Plus
Find class	Navigate/class	Command + O	CTRL + N
MultiRow Gaze	Code/comment	Command + OPTION +/	CTRL + ALT +/
Formatting code	Reformat Code	Command + OPTION + L	CTRL + ALT + L
Hint type of participation	Parameter Info	Command + P	CTRL + P
Find replacements	Replace	Command + R	CTRL + R
Find command	Find Action	Command + SHIFT + A	CTRL + SHIFT + A
Copy file path	Copy Paths	Command + SHIFT + C	CTRL + SHIFT + C
Moving code blocks	Move Statement Up/down	Command + SHIFT + Down/up	CTRL + SHIFT + Down/up
Code completion	Complete Current Statement	Command + SHIFT + ENTER	CTRL + SHIFT + ENTER
Full path Lookup	Find in Path	Command + SHIFT + F	CTRL + SHIFT + F
Code highlighting	Highlight Usages in File	Command + SHIFT + F7	ALT + J
All code in form collapse/expand	Collapse/expand All	Command + SHIFT + minus/Plus	CTRL + SHIFT + minus/Plus
Find Files	Navigate/file	Command + SHIFT + O	CTRL + SHIFT + N
Replace in full path	Replace in Path	Command + SHIFT + R	CTRL + SHIFT + R
Uppercase and lowercase conversions	Toggle case	Command + SHIFT + U	CTRL + SHIFT + U
Show pasted version history	Paste from the history	Command + SHIFT + V	CTRL + SHIFT + V
High-speed Lookup definition	Command + Space	CTRL + SHIFT + I
Paste	Paste	Command + V	CTRL + V
Copy	Copy	Command + C	CTRL + C
Remove Invalid package references	Optimize Imports	Control + OPTION + O	CTRL + ALT + O
Show class relationship inheritance system	Type Hierarchy	Control + H	CTRL + H
High-Speed Overwrite method	Override Methods	Control + O	CTRL + O
Find the location of the call	Call Hierarchy	Control + OPTION + H	CTRL + ALT + H
Add Bookmark	Toggle Bookmark	F3	F11
Expand Narrow Selection	Extend Selection/shrink Selection	OPTION + Up/down	CTRL + W + SHIFT + W
Jump to Parent class	Super method	Command + U	CTRL + U
Close the current tab tab	Editor Tabs/close	Command + W	CTRL + SHIFT + A
Close the rest of the form except the edit form	Hide all Tool Windows	Command + SHIFT + F12	CTRL + SHIFT + F12
Preview method definition	Quick Definition	Command + Y	CTRL + SHIFT + I
Returns the last edit position of the cursor	Last Edit location	Command + SHIFT + DELETE	CONTROL + SHIFT + Backspace
Transfer to code block header/Tail	Move Caret to Code Block	Option + Command + [or]	control+[or]
Renaming	Rename	SHIFT + F6	SHIFT + F6
Extraction method	Extract Method	Command + OPTION + M	Control+alt+m
Extracting variables	Extract Variable	Command + OPTION + V	Control+alt+v
Extracting fields	Extract Field	Command + OPTION + F	Control+alt+f
Extracting constants	Extract Constant	Command + OPTION + C Control+alt+c
Extract the number of references	Extract Parameter	Command + OPTION + P	Control+alt+p
Refactoring Portal	Refactor this	Control + T	CTRL + ALT + SHIFT + T

Android Studio often uses the manual