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1. Print the log:

LOGT, enter: auto generate static tag:

privatestaticfinal"MainActivity";

LOGD Enter
Loge Enter
Automatically generate print log

If you want to print parameters: Logm Enter

Auto Import Package: The package will not be imported automatically when you enter it, you need to set it up:

Under the setting:

2. Common shortcut keys

Code hint shortcut:ctrl+alt+ space

Move up and down one line of code:Ctrl+shift+up/down

Copy one line of code:ctrl+d

Delete one line of code:ctrl+y

Quick move between methods:Alt+up/down

Quickly select one or more lines of code:ctrl+w (try multiple times)

This is enough to write code.

Quick Find Open a class:Ctrl + N

Quickly find a file (such as XML):ctrl+shift+n

To quickly find a method in a class:ctrl+shift+alt+n

Show all methods in a class (fast switching method):ctrl+f12////////////

To view the parent class of a class:ctrl+u

See where a method is called: in the implementation of the method:ctrl+alt+h

See the implementation of a method (before you know it):ctrl+shift+i

Show class structure diagram:ctrl+h

Code return shortcut key:ctrl+alt+left

Switch between multiple windows:alt+left/right//////////////

Code folding and unwinding:ctrl++/-/////////////

Collapse Expand left panel:alt+1///////////

Overwrite the parent class method:ctrl+o///////////

Fast locating curly braces (one method is long):ctrl+{/}/////////

Select a statement to quickly add statements such as If,for,try catch:ctrl+alt+t//////

3. Generate code automatically

A shortcut key:ctrl+j

Then we write something:

Like what:

1. Null Judgment: Ifn/inn:

Enter:

     if (data == null) {        }

2.for Loop: For

3.findviewbyid:fbc

4.setvisibility:visible

.setVisibility(View.VISIBLE);

5. Print Toast:toast

 Toast.makeText(MainActivity.this"", Toast.LENGTH_SHORT).show();

Summary: Ctrl+j is still very powerful, there are many features, to explore their own.

4. Code Lookup Replace formatting

Search:ctrl+f

Replacement:ctrl+r

Recent files:ctrl+e

format Code :ctrl+alt+l(as if and QQ lock repeat, turn off QQ or change QQ shortcut key)

5.Debug

1. First you need to add a breakpoint.

2. Run the program

3. F8 Single Step

4. F7 Entering method interior

5. Skip to Next breakpoint:Shift+f8

6. View variable information without modifying the source code, such as forgetting to add a log statement during the debug process, as follows:
   

But I want to see the value of I, you can right-click on the breakpoint:

After clicking More, add the output statement:

Then you can see the value of the console output I in one step, or it is very convenient.

7. Cancel breakpoint: Click on the breakpoint directly.

6. Summary

There are many shortcut keys, in the setting directory:

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