Android 4.4 KitKat : All you need to know

Android Kitkat

Android 4.4 is designed to run fast, smooth, and responsively on a much broader range of devices than ever before — including on millions of entry-level devices around the world that have as little as 512MB RAM.

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KitKat streamlines every major component to reduce memory use and introduces new APIs and tools to help you create innovative, responsive, memory-efficient applications.

For developers, Android 4.4 helps you deliver apps that are efficient and responsive on all devices. A new API, ActivityManager.isLowRamDevice(), lets you tune your app’s behavior to match the device’s memory configuration. You can modify or disable large-memory features as needed, depending on the use-cases you want to support on entry-level devices.

Here’s a list of all things new:

New NFC capabilities through Host Card Emulation

NFC through Host Card Emulation

NFC through Host Card Emulation

Printing framework

Printing

Printing Framework

 

Full-screen Immersive mode

Immersive Mode

Full Screen Immersive Mode

Translucent system UI styling

Translucent System UI

Translucent System UI

 

Loudness enhancer

Loudness Enhancer

Loudness Enhancer

On-device memory status and profiling

Memory Profiling

Memory Profiling

Procstats

Process Stats

Process Stats

Enhanced notification access
Low-power sensors/Sensor batching
SMS provider
Chromium WebView
Screen recording
Resolution switching through adaptive playback
Common Encryption for DASH
HTTP Live Streaming
Audio Tunneling to DSP
Audio monitoring
Audio timestamps for improved AV sync
Wi-Fi CERTIFIED Miracast™
GPU acceleration
RenderScript in the Android NDK
GLES2.0 SurfaceFlinger
New Hardware Composer support for virtual displays
New Bluetooth profiles
IR Blasters
Wi-Fi TDLS support
System-wide settings for closed captioning
Enhanced Accessibility APIs
Drawable mirroring for RTL locales
RTL pseudo-locale
SELinux (enforcing mode)
Improved cryptographic algorithms

KitKat Performance

KitKat Performance

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