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Bugfix README.md, first stable release
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# Widget Tree Depth Counter | ||
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## [1.0.0] | ||
#### [@rickypid](https://github.com/rickypid) | ||
- Stable release. | ||
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## [0.0.1-alpha] | ||
#### [@rickypid](https://github.com/rickypid) | ||
- Initial release. |
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#### widget_tree_depth_counter | ||
# Widget Tree Depth Counter | ||
[![Pub Package](https://img.shields.io/pub/v/widget_tree_depth_counter.svg?style=flat-square)](https://pub.dartlang.org/packages/widget_tree_depth_counter) | ||
[![likes](https://badges.bar/widget_tree_depth_counter/likes)](https://pub.dev/packages/widget_tree_depth_counter/score) | ||
[![popularity](https://badges.bar/widget_tree_depth_counter/popularity)](https://pub.dev/packages/widget_tree_depth_counter/score) | ||
[![pub points](https://badges.bar/widget_tree_depth_counter/pub%20points)](https://pub.dev/packages/widget_tree_depth_counter/score) | ||
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[![Package Issue](https://img.shields.io/github/issues/rickypid/widget_tree_depth_counter)](https://github.com/rickypid/widget_tree_depth_counter/issues) | ||
![Package License](https://img.shields.io/github/license/rickypid/widget_tree_depth_counter) | ||
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`WidgetTreeDepthCounter` is a simple widget to count the amount of nested widget tree, useful in the dynamic construction of the interface when it is important to know the depth of widget. | ||
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| ![Image](https://github.com/rickypid/widget_tree_depth_counter/blob/master/doc/.media/example.jpg?raw=true) | | ||
| :------------: | | ||
| **WidgetTreeDepthCounter** | | ||
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## Features | ||
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* count of the depth of the widget with respect to the tree **(all uses of WidgetTreeDepthCounter in the current tree are counted, the other types of widgets are not counted)** | ||
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This widget can be used conveniently in such cases: | ||
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- Dynamically manage the colors of widgets based on their position in the tree | ||
- in an app that manages chapter numbers it is very easy to renumber them in case a chapter is removed. | ||
- ... | ||
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Many other cases where it is very difficult to manage a widget through fixed parameters to be managed based on the construction of the tree. | ||
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| ||
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## Usage | ||
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Make sure to check out the [examples on GitHub](https://github.com/rickypid/widget_tree_depth_counter/tree/master/example). | ||
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| ![Image](https://github.com/rickypid/widget_tree_depth_counter/blob/master/doc/.media/widget_tree_example.jpg?raw=true) | | ||
| :------------: | | ||
| **Example of operation in a widget tree** | | ||
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### Installation | ||
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#### From `pubspec.yaml` | ||
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Add the following line to `pubspec.yaml`: | ||
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```yaml | ||
dependencies: | ||
widget_tree_depth_counter: <last-release> | ||
``` | ||
and | ||
```bash | ||
flutter pub get | ||
``` | ||
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#### From cli | ||
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run following command: | ||
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```bash | ||
flutter pub add widget_tree_depth_counter | ||
``` | ||
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### Basic setup | ||
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*Complete example [available here](https://github.com/rickypid/widget_tree_depth_counter/blob/master/example/lib/main.dart).* | ||
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```dart | ||
ParentWidget( | ||
child: WidgetTreeDepthCounter( | ||
builder: (context, counter) => //counter=0 | ||
Container( | ||
color: Theme.of(context) | ||
.primaryColor | ||
.withOpacity(counter * 0.05 + 0.05), | ||
child: WidgetTreeDepthCounter( | ||
builder: (context, counter) =>//counter=1 | ||
Container( | ||
color: Theme.of(context) | ||
.primaryColor | ||
.withOpacity(counter * 0.05 + 0.05), | ||
), | ||
), | ||
), | ||
), | ||
), | ||
``` | ||
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### WidgetTreeDepthCounter Properties | ||
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* `builder`: Function called at layout time to construct the widget tree, return `Widget`. | ||
* `count`: With this parameter it's possible define or overwrite the current depth count value. | ||
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### Use current `counter` value during build `WidgetTreeDepthCounter` | ||
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`WidgetTreeDepthCounter` uses [Provider](https://pub.dev/packages/provider) library to count the depth, but if it is necessary to access the current value to perform a sum (for example), it is possible to retrieve the count value through the `Provider 'functions: | ||
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```dart | ||
WidgetTreeDepthCounter( | ||
count: context.read<DepthCounter>().value + 2, | ||
builder: (context, counter) => | ||
Text(counter.toString()), | ||
) | ||
``` | ||
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**Obviously to access the value via `context.read<DepthCounter>()` it is necessary that at least one `WidgetTreeDepthCounter` is present in the tree and `provider` package is required.** | ||
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