public interface ViewWithActivity {
// Using android-gradle-plugin 3.0, which has the desugar step for default methods on interfaces
default Activity getActivity() {
// https://android.googlesource.com/platform/frameworks/support/+/03e0f3daf3c97ee95cd78b2f07bc9c1be05d43db/v7/mediarouter/src/android/support/v7/app/MediaRouteButton.java#276
Context context = getContext();
while (context instanceof ContextWrapper) {
if (context instanceof Activity) {
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* An [Observer] for [Event]s, simplifying the pattern of checking if the [Event]'s content has | |
* already been handled. | |
* | |
* [onEventUnhandledContent] is *only* called if the [Event]'s contents has not been handled. | |
*/ | |
class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> { | |
override fun onChanged(event: Event<T>?) { | |
event?.getContentIfNotHandled()?.let { value -> | |
onEventUnhandledContent(value) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* Used as a wrapper for data that is exposed via a LiveData that represents an event. | |
*/ | |
open class Event<out T>(private val content: T) { | |
var hasBeenHandled = false | |
private set // Allow external read but not write | |
/** | |
* Returns the content and prevents its use again. |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* Typedef annotation listing all permissions | |
* available in the latest SDK. | |
* Using this on a method parameter | |
* or on a method with {@link String} return value | |
* will trigger value lookup in Android Studio. | |
* | |
* @version SDK23 | |
* @author jmarkovic | |
*/ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// GSON can parse the data. | |
// | |
// Deserialization: | |
// Note there is a bug in GSON 2.3.1 that can cause it to StackOverflow when working with RealmObjects. | |
// To work around this, use the ExclusionStrategy below or downgrade to 1.7.1 | |
// See more here: https://code.google.com/p/google-gson/issues/detail?id=440 | |
// | |
// Serialization: | |
// <Type>RealmProxy objects are created by the Realm annotation processor. They are used to control | |
// access to the actual data instead of storing them in fields and it is therefore them we need to register a |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Unless specified otherwise, all of the below tinting applies to both Lollipop and pre-Lollipop using AppCompat v21. | |
To use the support version of these attributes, remove the android namespace. | |
For instance, "android:colorControlNormal" becomes "colorControlNormal". | |
These attributes will be propagated to their corresponding attributes within the android namespace | |
for devices running Lollipop. Any exceptions to this will be noted by including the "android:" prefix. | |
All Clickable Views: | |
----------- |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import android.view.View; | |
import android.widget.AbsListView; | |
public abstract class OnVerticalScrollDirectionListener implements AbsListView.OnScrollListener { | |
/** | |
* TODO: Make it changeable | |
*/ | |
public static final int DEFAULT_SCROLL_OFFSET_THRESHOLD = 6; /* In pixels */ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?xml version="1.0" encoding="utf-8"?> | |
<resources> | |
<!-- google's material design colours from | |
http://www.google.com/design/spec/style/color.html#color-ui-color-palette --> | |
<!--reds--> | |
<color name="md_red_50">#FFEBEE</color> | |
<color name="md_red_100">#FFCDD2</color> | |
<color name="md_red_200">#EF9A9A</color> |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
People
:bowtie: |
😄 :smile: |
😆 :laughing: |
---|---|---|
😊 :blush: |
😃 :smiley: |
:relaxed: |
😏 :smirk: |
😍 :heart_eyes: |
😘 :kissing_heart: |
😚 :kissing_closed_eyes: |
😳 :flushed: |
😌 :relieved: |
😆 :satisfied: |
😁 :grin: |
😉 :wink: |
😜 :stuck_out_tongue_winking_eye: |
😝 :stuck_out_tongue_closed_eyes: |
😀 :grinning: |
😗 :kissing: |
😙 :kissing_smiling_eyes: |
😛 :stuck_out_tongue: |
NewerOlder