Mobile build (Android/iOS) in Unity - Step-by-Step Execution

Concept Flow - Mobile build (Android/iOS)

Open Unity Project

↓

Configure Build Settings

↓

Select Platform: Android or iOS

↓

Switch Platform

↓

Set Player Settings

↓

Build & Run

↓

Unity compiles and packages

↓

App installed on device or emulator

↓

Test and Debug

↓

END

This flow shows the steps to build a Unity project for Android or iOS devices, from opening the project to testing the app on a device.

Execution Sample

Unity

1. Open Unity Editor
2. File > Build Settings
3. Select Android or iOS
4. Click Switch Platform
5. Configure Player Settings
6. Click Build & Run

This sequence builds and runs the Unity project on a mobile device or emulator.

Execution Table

Step	Action	Unity Response	Result
1	Open Unity Project	Project loads in Editor	Ready for build
2	Open Build Settings	Build Settings window opens	Choose platform
3	Select Android or iOS	Platform selected	Platform ready to switch
4	Click Switch Platform	Unity switches build target	Assets reimported if needed
5	Configure Player Settings	Settings window opens	Set app name, icons, permissions
6	Click Build & Run	Unity compiles and packages app	App installed on device/emulator
7	Test app on device	App launches	Check functionality and debug
8	END	Build process complete	App ready for release or further testing

💡 Build completes after app is installed and launched on device or emulator.

Variable Tracker

Variable	Start	After Step 3	After Step 4	After Step 6	Final
Selected Platform	None	Android or iOS	Android or iOS (active)	Android or iOS (active)	Android or iOS (active)
Build Settings	Default	Platform selected	Platform switched	Build started	Build complete
Player Settings	Default	Default	Configured	Configured	Configured
Build Output	None	None	None	App package created	App installed on device

Key Moments - 3 Insights

Why do we need to 'Switch Platform' before building?

Switching platform tells Unity to prepare assets and settings for the chosen mobile OS, as shown in execution_table step 4 where Unity reimports assets for Android or iOS.

What happens if Player Settings are not configured properly?

Incorrect Player Settings can cause build errors or app issues on device, as seen in step 5 where settings like app name and permissions must be set before building.

Why does the build process take time after clicking 'Build & Run'?

Unity compiles scripts, packages assets, and installs the app on the device, which involves multiple steps shown in step 6 and 7 of the execution_table.

Visual Quiz - 3 Questions

Look at the execution_table, at which step does Unity reimport assets for the selected platform?

A Step 4

B Step 5

C Step 3

D Step 6

💡 Hint

Check the 'Unity Response' column for asset reimporting in step 4.

According to variable_tracker, what is the state of 'Build Output' after Step 6?

A App installed on device

B None

C App package created

D Build started

💡 Hint

Look at the 'Build Output' row under 'After Step 6' column.

If you skip configuring Player Settings, what problem might you face according to key_moments?

A Build will be faster

B Build errors or app issues on device

C App might not install on device

D Unity will automatically fix settings

💡 Hint

Refer to key_moments about Player Settings importance.

Concept Snapshot

Mobile build in Unity:
1. Open Build Settings
2. Select Android or iOS platform
3. Switch Platform to prepare assets
4. Configure Player Settings (app name, icons, permissions)
5. Click Build & Run to compile and install app
6. Test app on device or emulator

Full Transcript

To build a mobile app in Unity, first open your project and go to Build Settings. Choose Android or iOS as your platform and click Switch Platform to prepare assets. Then configure Player Settings to set app details and permissions. Finally, click Build & Run to compile the app and install it on your device or emulator. Test the app to ensure it works correctly. This process involves switching platforms, configuring settings, building, and testing.