AndroidFastScroll

https://github.com/zhanghai/androidfastscroll
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Fast scroll for Android RecyclerView and more
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Snippets:13
Trust Score:8.7
License:Apache-2.0
Update:1 year ago
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### Customizing FastScroller Popup Style

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Provides an example of customizing the appearance of the FastScroller's popup view using setPopupStyle(). A lambda function is used to receive and modify the popup view.

```java
fastScrollerBuilder.setPopupStyle(popupView -> {
    // Customize popupView here
});
```

--------------------------------

### Customizing FastScroller with ViewHelper

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Example of providing a custom ViewHelper to FastScrollerBuilder for advanced view support or specific scrolling calculations. This is useful when the default implementation for LinearLayoutManager or GridLayoutManager is insufficient, especially with variable item heights.

```java
fastScrollerBuilder.setViewHelper(new MyCustomViewHelper());
```

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### Initialize FastScroller for RecyclerView

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

This snippet demonstrates the basic initialization of the FastScroller for a RecyclerView using its builder pattern. It requires a RecyclerView instance as input and returns a configured FastScroller object.

```java
new FastScrollerBuilder(recyclerView).build();
```

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### Using Default and MD2 Styles for FastScroller

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Illustrates the usage of predefined styles for the FastScroller, including useDefaultStyle() and useMd2Style(). These methods set default drawables and popup styles for quick configuration.

```java
fastScrollerBuilder.useDefaultStyle();
fastScrollerBuilder.useMd2Style();
```

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### Enable Java 8 Support (Gradle)

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

This snippet demonstrates how to enable Java 8 bytecode compatibility in your Android project's Gradle configuration. This is a requirement for using the AndroidFastScroll library.

```gradle
android {
    ...
    // For Java projects
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    // For Kotlin projects
    kotlinOptions {
        jvmTarget = JavaVersion.VERSION_1_8.toString()
    }
}
```

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### Configuring FastScroller Animation Helper

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Demonstrates how to inject a custom AnimationHelper into the FastScroller for alternative scrollbar animations. This method is used when the default animation is not desired.

```java
fastScrollerBuilder.setAnimationHelper(new MyCustomAnimationHelper());
```

--------------------------------

### Add AndroidFastScroll Dependency (Gradle)

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

This snippet shows how to add the AndroidFastScroll library to your Android project using Gradle. Ensure you have Java 8 support enabled in your project.

```gradle
implementation 'me.zhanghai.android.fastscroll:library:1.3.0'
```

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### Customizing FastScroller with PopupTextProvider

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Illustrates how to set a custom PopupTextProvider for the FastScroller, typically used when the RecyclerView.Adapter cannot directly implement the PopupTextProvider interface. This allows for custom text display in the scrollbar popup.

```java
fastScrollerBuilder.setPopupTextProvider(new MyCustomPopupTextProvider());
```

--------------------------------

### Setting Custom Padding for FastScroller

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Demonstrates how to apply custom padding to the FastScroller's track and thumb, overriding the default padding derived from the RecyclerView. This allows for fine-grained control over the scrollbar's visual positioning.

```java
fastScrollerBuilder.setPadding(16, 16, 16, 16);
```

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### Handling Touch Listener Conflicts with FixOnItemTouchListenerRecyclerView

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Presents FixOnItemTouchListenerRecyclerView, a solution for conflicts arising from multiple RecyclerView.OnItemTouchListener instances, such as those used by libraries like recyclerview-selection. It ensures proper touch event dispatching and cancellation handling.

```java
public class FixOnItemTouchListenerRecyclerView extends RecyclerView {}
```

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### Applying Custom Drawables to FastScroller

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Shows how to set custom drawables for the FastScroller's track and thumb using setTrackDrawable() and setThumbDrawable(). The drawables need intrinsic dimensions, and the state_pressed attribute can be used for stateful selectors.

```java
fastScrollerBuilder.setTrackDrawable(trackDrawable);
fastScrollerBuilder.setThumbDrawable(thumbDrawable);
```

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### Fixing ItemDecoration Drawing Order with FixItemDecorationRecyclerView

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Introduces FixItemDecorationRecyclerView, a custom RecyclerView designed to resolve drawing order issues when using RecyclerView.ItemDecoration that implements onDrawOver().

```java
public class FixItemDecorationRecyclerView extends RecyclerView {}
```

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### Disabling Auto-Hide Animation for FastScroller

Source: https://github.com/zhanghai/androidfastscroll/blob/master/README.md

Shows how to disable the automatic hiding animation of the scrollbar using disableScrollbarAutoHide(). This implies the use of a DefaultAnimationHelper and keeps the scrollbar visible.

```java
fastScrollerBuilder.disableScrollbarAutoHide();
```
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