How can I determine available space in iOS?

To determine available space in iOS, you can use various tools and techniques provided by Xcode. Here are some relevant steps and tools mentioned in the WWDC sessions:

1. Xcode Memory Report: This tool shows an application's memory footprint over time, which includes more than just the heap. It can help identify large memory issues and provide some recent history of memory usage. However, it won't tell you why memory use is growing, so you'll need other tools for deeper analysis.

2. Allocations Instrument: This is part of the Instruments tool in Xcode. It helps profile your app's heap memory usage. You can use it to track allocations and virtual memory usage, which can help you understand how much memory your app is using and identify any spikes or patterns in memory growth.

3. Memory Graph Debugger: This tool captures memory graphs, which are snapshots of all allocations and the references between them. It includes backtraces for each allocation if Malloc stack logging is enabled. This can help you focus on specific allocations and understand why they are still in memory.

4. Malloc Stack Logging: This can be enabled in Xcode's scheme diagnostics tab. It helps track memory usage by providing backtraces for each allocation, which can be useful for identifying memory leaks and understanding memory growth patterns.

For more detailed steps and examples, you can refer to the session "Analyze heap memory" which covers tools for inspecting heap memory issues and provides a comprehensive overview of how to measure and analyze heap memory.

Relevant Sessions

• Analyze heap memory
• Analyze heap memory