Android Studio Keyboard Shortcuts

Keyboard Shortcuts

Android Studio includes keyboard shortcuts for many common actions. Table 1 shows the default keyboard shortcuts by operating system.

Table 1. Default keyboard shortcuts for Windows/Linux and Mac operating systems.

Description	Windows/Linux	Mac
General
Save all	Control + S	Command + S
Synchronize	Control + Alt + Y	Command + Option + Y
Maximize/minimize editor	Control + Shift + F12	Control + Command + F12
Add to favorites	Alt + Shift + F	Option + Shift + F
Inspect current file with current profile	Alt + Shift + I	Option + Shift + I
Quick switch scheme	Control + ` (backquote)	Control + ` (backquote)
Open settings dialogue	Control + Alt + S	Command + , (comma)
Open project structure dialog	Control + Alt + Shift + S	Command + ; (semicolon)
Switch between tabs and tool window	Control + Tab	Control + Tab
Navigating and Searching Within Studio
Search everything (including code and menus)	Press Shift twice	Press Shift twice
Find	Control + F	Command + F
Find next	F3	Command + G
Find previous	Shift + F3	Command + Shift + G
Replace	Control + R	Command + R
Find action	Control + Shift + A	Command + Shift + A
Search by symbol name	Control + Alt + Shift + N	Command + Option + O
Find class	Control + N	Command + O
Find file (instead of class)	Control + Shift + N	Command + Shift + O
Find in path	Control + Shift + F	Command + Shift + F
Open file structure pop-up	Control + F12	Command + F12
Navigate between open editor tabs	Alt + Right/Left Arrow	Control + Right/Left Arrow
Jump to source	F4 / Control + Enter	F4 / Command + Down Arrow
Open current editor tab in new window	Shift + F4	Shift + F4
Recently opened files pop-up	Control + E	Command + E
Recently edited files pop-up	Control + Shift + E	Command + Shift + E
Go to last edit location	Control + Shift + Backspace	Command + Shift + Backspace
Close active editor tab	Control + F4	Command + W
Return to editor window from a tool window	Esc	Esc
Hide active or last active tool window	Shift + Esc	Shift + Esc
Go to line	Control + G	Command + L
Open type hierarchy	Control + H	Control + H
Open method hierarchy	Control + Shift + H	Command + Shift + H
Open call hierarchy	Control + Alt + H	Control + Option + H
Writing Code
Generate code (getters, setters, constructors, hashCode/equals, toString, new file, new class)	Alt + Insert	Command + N
Override methods	Control + O	Control + O
Implement methods	Control + I	Control + I
Surround with (if...else / try...catch / etc.)	Control + Alt + T	Command + Option + T
Delete line at caret	Control + Y	Command + Backspace
Collapse/expand current code block	Control + minus/plus	Command + minus/plus
Collapse/expand all code blocks	Control + Shift + minus/plus	Command + Shift + minus/plus
Duplicate current line or selection	Control + D	Command + D
Basic code completion	Control + Space	Control + Space
Smart code completion (filters the list of methods and variables by expected type)	Control + Shift + Space	Control + Shift + Space
Complete statement	Control + Shift + Enter	Command + Shift + Enter
Quick documentation lookup	Control + Q	Control + J
Show parameters for selected method	Control + P	Command + P
Go to declaration (directly)	Control + B or Control + Click	Command + B or Command + Click
Go to implementations	Control + Alt + B	Command + Alt + B
Go to super-method/super-class	Control + U	Command + U
Open quick definition lookup	Control + Shift + I	Command + Y
Toggle project tool window visibility	Alt + 1	Command + 1
Toggle bookmark	F11	F3
Toggle bookmark with mnemonic	Control + F11	Option + F3
Comment/uncomment with line comment	Control + /	Command + /
Comment/uncomment with block comment	Control + Shift + /	Command + Shift + /
Select successively increasing code blocks	Control + W	Option + Up
Decrease current selection to previous state	Control + Shift + W	Option + Down
Move to code block start	Control + [	Option + Command + [
Move to code block end	Control + ]	Option + Command + ]
Select to the code block start	Control + Shift + [	Option + Command + Shift + [
Select to the code block end	Control + Shift + ]	Option + Command + Shift + ]
Delete to end of word	Control + Delete	Option + Delete
Delete to start of word	Control + Backspace	Option + Backspace
Optimize imports	Control + Alt + O	Control + Option + O
Project quick fix (show intention actions and quick fixes)	Alt + Enter	Option + Enter
Reformat code	Control + Alt + L	Command + Option + L
Auto-indent lines	Control + Alt + I	Control + Option + I
Indent/unindent lines	Tab/Shift + Tab	Tab/Shift + Tab
Smart line join	Control + Shift + J	Control + Shift + J
Smart line split	Control + Enter	Command + Enter
Start new line	Shift + Enter	Shift + Enter
Next/previous highlighted error	F2 / Shift + F2	F2 / Shift + F2
Build and Run
Build	Control + F9	Command + F9
Build and run	Shift + F10	Control + R
Apply changes (with Instant Run)	Control + F10	Control + Command + R
Debugging
Debug	Shift + F9	Control + D
Step over	F8	F8
Step into	F7	F7
Smart step into	Shift + F7	Shift + F7
Step out	Shift + F8	Shift + F8
Run to cursor	Alt + F9	Option + F9
Evaluate expression	Alt + F8	Option + F8
Resume program	F9	Command + Option + R
Toggle breakpoint	Control + F8	Command + F8
View breakpoints	Control + Shift + F8	Command + Shift + F8
Refactoring
Copy	F5	F5
Move	F6	F6
Safe delete	Alt + Delete	Command + Delete
Rename	Shift + F6	Shift + F6
Change signature	Control + F6	Command + F6
Inline	Control + Alt + N	Command + Option + N
Extract method	Control + Alt + M	Command + Option + M
Extract variable	Control + Alt + V	Command + Option + V
Extract field	Control + Alt + F	Command + Option + F
Extract constant	Control + Alt + C	Command + Option + C
Extract parameter	Control + Alt + P	Command + Option + P
Version Control / Local History
Commit project to VCS	Control + K	Command + K
Update project from VCS	Control + T	Command + T
View recent changes	Alt + Shift + C	Option + Shift + C
Open VCS popup	Alt + ` (backquote)	Control + V

Configure Custom Keymaps

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You can choose from a number of preset keymaps or modify a preset keymap to create a new custom keymap in the keymap settings for Android Studio.

To open the keymap settings, click File > Settings > Keymap (on Mac, File > Properties > Keymap).

Figure 1. The Android Studio keymap settings window.

1. Keymaps dropdown: Delect the desired keymap from this menu to switch between preset keymaps.
2. Actions list: Right click on an action to modify it. You can add additional keyboard shortcuts for the action, add mouse shortcuts to associate an action with a mouse click, or remove current shortcuts. If you are using a preset keymap, modifying an action’s shortcuts will automatically create a copy of the keymap and add your modifications to the copy.
3. Copy button: Select a keymap from the dropdown menu to use as a starting point, and click Copy to create a new custom keymap. You can modify the keymap name and shortcuts.
4. Reset button: Select a keymap from the dropdown menu and click Reset to revert it to its original configuration.
5. Search box: Type here to search for a keyboard shortcut by the action name.
6. Search by Shortcut: Click Find Actions by Shortcut and type a shortcut to search for actions by shortcut.

Android TV - Dialog

Android TV - Dialog

The leanback library for Android TV introduced the concept of guided step fragments. These have an intuitive way of presenting prompts to a user. I made a simple class that uses a GuidedStepFragment to create a simple yes/no dialog for TV. check out the code for this below:

Add declaration of this Activity to AndroidManifest.

<activity  

android:name="ATVDialog"  

android:theme="@style/Theme.Example.Leanback.GuidedStep" />

So we can start implementing GuidedStepFragment from here. Before real implementation, I will tell you basic structure of this GuidedStepFragment in brief :

GuidedStepFragment – Structure

As mentioned in official_doc, It is composed of a guidance view on the left and a view on the right containing a list of possible actions.

Overriding Method

To use GuidedStepFragment, we need to override at least these 3 methods.

• onCreateGuidance(Bundle) – To create guidance view (left side).  – Attributes of guidance (title, description etc) are specified here.

• onCreateActions(List, Bundle) – To define list of possible actions (right side). – Attributes of action are specified here.

• onGuidedActionClicked(GuidedAction) – This is onClick listener. – Behaviors after clicking action buttons can be specified here.

At least if you know this, you can use GuidedStepFragment. But you may want to modify the design layout of this Guidance. You can use “Theme” & “Stylist” to customize visual styling

Implementation (Overriding method)

To attach instance of GuidedStepFragment, we can use GuidedStepFragment.add function. Here instance of ConfirmationStepFragment class, which is a subclass of GuidedStepFragment, is added at onCreate of ATVDialog.

Please also check the sample implementation of 3 overriding methods such as, onCreateGuidance, onCreateActions and onGuidedActionClicked.

public class ATVDialog extends Activity {

    private static final int CONTINUE = 0;
    private static final int BACK = 1;
   
    @Override  

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if (null == savedInstanceState) {
           
                GuidedStepFragment.addAsRoot(this, new ConfirmationStepFragment(),

             android.R.id.content);
           
        }
    
    }

    private static void addAction(List<GuidedAction> actions, long id, 

     String title, String desc) {
        actions.add(new GuidedAction.Builder()
                .id(id)
                .title(title)
                .description(desc)
                .build());
    }

public static class ConfirmationStepFragment extends GuidedStepFragment {

        @Override

        @NonNull     

        public Guidance onCreateGuidance(@NonNull Bundle savedInstanceState) {
            String title = "Confirm";
            String description = "Dialog description message";
            return new Guidance(title, description, null, null);
        }

        @Override       

      public void onCreateActions(@NonNull List<GuidedAction> actions,

          Bundle savedInstanceState) {
            addAction(actions, CONTINUE,
                    "Confirm",
                    null);
            addAction(actions, BACK,
                    "Cancel",
                    null);
        }

        @Override   

        public void onGuidedActionClicked(GuidedAction action) {
            FragmentManager fm = getFragmentManager();
            if (action.getId() == CONTINUE) {
               //Do action on confirm Click
            } else {
                getActivity().finish();
                  }
        }

}

}