update: images

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Danil Pavlov 2023-04-06 12:56:18 +02:00
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README.md
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@ -5,13 +5,13 @@
> Compose Multiplatform is in Alpha. It may change incompatibly and require manual migration in the future.
You can use this template to start developing your own [Compose Multiplatform](https://github.com/JetBrains/compose-multiplatform) application.
The result will be a Kotlin Multiplatform project targeting Android and iOS.
The result will be a Kotlin Multiplatform project targeting Android and iOS.
![](readme_images/banner.png)
## Set up an environment
> **Important**. You will need a Mac with macOS to write and run iOS-specific code on simulated or real devices.
> **Important**. You need a Mac with macOS to write and run iOS-specific code on simulated or real devices.
> This is an Apple requirement.
To work with this template, you need the following:
@ -24,7 +24,7 @@ To work with this template, you need the following:
### Check your environment
Before you start, use the [KDoctor](https://github.com/Kotlin/kdoctor) tool to ensure you have all the tools and that your development environment is configured correctly.
When you install all the tools, use the [KDoctor](https://github.com/Kotlin/kdoctor) tool to ensure that your development environment is configured correctly:
1. Install KDoctor with [Homebrew](https://brew.sh/):
@ -38,26 +38,25 @@ Before you start, use the [KDoctor](https://github.com/Kotlin/kdoctor) tool to e
kdoctor
```
If everything is set up correctly, you'll see a valid output:
```text
Environment diagnose (to see all details, use -v option):
[✓] Operation System
[✓] Java
[✓] Android Studio
[✓] Xcode
[✓] Cocoapods
Conclusion:
✓ Your system is ready for Kotlin Multiplatform Mobile Development!
```
Otherwise, KDoctor will highlight which parts of your setup still need configuration and suggest how to fix them.
If everything is set up correctly, you'll see a valid output:
```text
Environment diagnose (to see all details, use -v option):
[✓] Operation System
[✓] Java
[✓] Android Studio
[✓] Xcode
[✓] Cocoapods
Conclusion:
✓ Your system is ready for Kotlin Multiplatform Mobile Development!
```
Otherwise, KDoctor will highlight which parts of your setup still need configuration and suggest how to fix them.
## Examine the project structure
1. Open the project in Android Studio.
2. Switch the project view from **Android** to **Project** to see all the files and targets belonging to the project.
Open the project in Android Studio and switch the view from **Android** to **Project** to see all the files and targets belonging to the project:
<img src="readme_images/open_project_view.png" height="300px">
@ -68,7 +67,7 @@ Your Compose Multiplatform project includes three modules:
This is a Kotlin module that contains the logic common for both Android and iOS applications, the code you share between platforms.
This `shared` module is also where you write your Compose Multiplatform code.
You can find the shared root `@Composable` function for your app in `shared/src/commonMain/kotlin/App.kt`.
In `shared/src/commonMain/kotlin/App.kt`, you can find the shared root `@Composable` function for your app.
It uses Gradle as the build system. You can add dependencies and change settings in `shared/build.gradle.kts`.
The shared module builds into an Android library and an iOS framework.
@ -91,10 +90,11 @@ To run your application on an Android emulator:
1. Create an [Android virtual device](https://developer.android.com/studio/run/managing-avds#createavd).
2. In the list of run configurations, select `androidApp`.
3. Choose your virtual device and click **Run**.
3. Choose your virtual device and click **Run**:
<img src="readme_images/run_on_android.png" height="60px">
<img src="readme_images/android_app_running.png" height="200px">
<img src="readme_images/run_on_android.png" height="60px">
<img src="readme_images/android_app_running.png" height="200px">
<details>
<summary>Alternatively, use Gradle</summary>
@ -105,44 +105,47 @@ To install an Android application on a real device Android device or an emulator
### On iOS
#### Running on an iOS simulator
#### Running on a simulator
Once you have configured your environment correctly,
you can select which iOS simulator to run your application in Android Studio by modifying the `iosApp` run configuration.
To run your application on an iOS simulator in Android Studio, modify the `iosApp` run configuration:
In the list of run configurations, select **Edit Configurations** and navigate to **iOS Application** | **iosApp**.
In the **Execution target** list, select your target device.
1. In the list of run configurations, select **Edit Configurations**:
<img src="readme_images/edit_run_config.png" height="200px">
<img src="readme_images/target_device.png">
<img src="readme_images/edit_run_config.png" height="200px">
Press the **Run** button to run your Compose Multiplatform app on the iOS simulator.
2. Navigate to **iOS Application** | **iosApp**.
3. In the **Execution target** list, select your target device. Click **OK**:
<img src="readme_images/target_device.png">
4. The `iosApp` run configuration is now available. Click **Run** next to your virtual device:
<img src="readme_images/hello_world_ios.png" height="200px">
#### Running on a real iOS device
#### Running on a real device
You can run your Compose Multiplatform application on a real device. To do that, you'll need the following:
You can run your Compose Multiplatform application on a real iOS device.
To do that, you'll need the following:
* `TEAM_ID` associated with your [Apple ID](https://support.apple.com/en-us/HT204316)
* The iOS device registered in Xcode
Before you continue, we suggest creating a simple "Hello, world!" project in Xcode to ensure you can successfully run apps on your device.
You can follow the instructions below or watch this [this Standford CS193P lecture recording](https://youtu.be/bqu6BquVi2M?start=716&end=1399).
<details>
<summary>How to create and run a simple project in Xcode</summary>
1. On the Xcode welcome screen, select **Create a new project in Xcode**.
2. On the **iOS** tab, choose the **App** template. Click **Next**.
3. Specify the product name and keep other settings default. Click **Next**.
4. Select where to store the project on your computer and click **Create**. You'll see an app that displays "Hello, world!" on the device screen.
5. At the top of your Xcode screen, click on a device name near the **Run** button.
6. Plug in your device to the computer. You'll see this device in the list of run options.
7. Choose your device and click **Run**.
</details>
> Before you continue, we suggest creating a simple "Hello, world!" project in Xcode to ensure you can successfully run apps on your device.
> You can follow the instructions below or watch this [this Standford CS193P lecture recording](https://youtu.be/bqu6BquVi2M?start=716&end=1399).
>
> <details>
>
> <summary>How to create and run a simple project in Xcode</summary>
>
> 1. On the Xcode welcome screen, select **Create a new project in Xcode**.
> 2. On the **iOS** tab, choose the **App** template. Click **Next**.
> 3. Specify the product name and keep other settings default. Click **Next**.
> 4. Select where to store the project on your computer and click **Create**. You'll see an app that displays "Hello, world!" on the device screen.
> 5. At the top of your Xcode screen, click on a device name near the **Run** button.
> 6. Plug in your device to the computer. You'll see this device in the list of run options.
> 7. Choose your device and click **Run**.
>
> </details>
##### Finding your Team ID
@ -170,7 +173,7 @@ If KDoctor doesn't work for you, try this alternative method:
</details>
To run the application, set the `TEAM_ID` associated with your Apple ID:
To run the application, set the `TEAM_ID`:
1. In the template, navigate to the `iosApp/Configuration/Config.xcconfig` file.
2. Set your `TEAM_ID`.
@ -178,66 +181,67 @@ To run the application, set the `TEAM_ID` associated with your Apple ID:
## Make your first changes
In Android Studio, navigate to the `shared/src/commonMain/kotlin/App.kt` file.
It's the common entry point for your Compose Multiplatform app.
Here, you see the code responsible for rendering the "Hello, World!" button and the animated Compose Multiplatform logo:
1. In Android Studio, navigate to the `shared/src/commonMain/kotlin/App.kt` file.
It's the common entry point for your Compose Multiplatform app.
Here, you see the code responsible for rendering the "Hello, World!" button and the animated Compose Multiplatform logo:
```kotlin
@OptIn(ExperimentalResourceApi::class)
@Composable
internal fun App() {
MaterialTheme {
var greetingText by remember { mutableStateOf("Hello, World!") }
var showImage by remember { mutableStateOf(false) }
Column(Modifier.fillMaxWidth(), horizontalAlignment = Alignment.CenterHorizontally) {
Button(onClick = {
greetingText = "Hello, ${getPlatformName()}"
showImage = !showImage
}) {
Text(greetingText)
}
AnimatedVisibility(showImage) {
Image(
painterResource("compose-multiplatform.xml"),
null
)
}
}
}
}
```
```kotlin
@OptIn(ExperimentalResourceApi::class)
@Composable
internal fun App() {
MaterialTheme {
var greetingText by remember { mutableStateOf("Hello, World!") }
var showImage by remember { mutableStateOf(false) }
Column(Modifier.fillMaxWidth(), horizontalAlignment = Alignment.CenterHorizontally) {
Button(onClick = {
greetingText = "Hello, ${getPlatformName()}"
showImage = !showImage
}) {
Text(greetingText)
}
AnimatedVisibility(showImage) {
Image(
painterResource("compose-multiplatform.xml"),
null
)
}
}
}
}
```
Update the shared code by adding a text field that will update the name displayed on the button:
2. Update the shared code by adding a text field that will update the name displayed on the button:
```diff
@OptIn(ExperimentalResourceApi::class)
@Composable
internal fun App() {
MaterialTheme {
var greetingText by remember { mutableStateOf("Hello, World!") }
var showImage by remember { mutableStateOf(false) }
Column(Modifier.fillMaxWidth(), horizontalAlignment = Alignment.CenterHorizontally) {
Button(onClick = {
greetingText = "Hello, ${getPlatformName()}"
showImage = !showImage
}) {
Text(greetingText)
}
+ TextField(greetingText, onValueChange = { greetingText = it })
AnimatedVisibility(showImage) {
Image(
painterResource("compose-multiplatform.xml"),
null
)
}
}
}
}
```
```diff
@OptIn(ExperimentalResourceApi::class)
@Composable
internal fun App() {
MaterialTheme {
var greetingText by remember { mutableStateOf("Hello, World!") }
var showImage by remember { mutableStateOf(false) }
Column(Modifier.fillMaxWidth(), horizontalAlignment = Alignment.CenterHorizontally) {
Button(onClick = {
greetingText = "Hello, ${getPlatformName()}"
showImage = !showImage
}) {
Text(greetingText)
}
+ TextField(greetingText, onValueChange = { greetingText = it })
AnimatedVisibility(showImage) {
Image(
painterResource("compose-multiplatform.xml"),
null
)
}
}
}
}
```
You'll see this change reflected on both the Android and iOS apps:
3. Re-run both `androidApp` and `iosApp` configurations. You'll see this change reflected on both the Android and iOS apps:
<img src="readme_images/text_field_added.png" height="200px">
<img src="readme_images/text_field_added.png" height="200px">
## How to configure the iOS application
@ -245,7 +249,7 @@ You can further configure the basic properties of your iOS app using this templa
In Android Studio, navigate to the `iosApp/Configuration/Config.xcconfig` configuration file. It contains:
* `APP_NAME`, a target executable and an application bundle name
* `BUNDLE_ID` that [uniquely identifies the app throughout the system](https://developer.apple.com/documentation/bundleresources/information_property_list/cfbundleidentifier#discussion)
* `BUNDLE_ID` that [uniquely identifies the app throughout the system](https://developer.apple.com/documentation/bundleresources/information_property_list/cfbundleidentifier#discussion)
* `TEAM_ID`, [a unique identifier generated by Apple that's assigned to your team](https://developer.apple.com/help/account/manage-your-team/locate-your-team-id/#:~:text=A%20Team%20ID%20is%20a,developer%20in%20App%20Store%20Connect)
To configure the `APP_NAME` option, open `Config.xcconfig` in any text editor *before opening* the project in Android Studio, and set the desired name.

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