| # Circular progress & activity indicator |
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| Material Design progress indicators display the length of a process or express an unspecified wait |
| time. There are two styles of progress indicators: linear and circular. |
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| This component only provides the circular implementation. See |
| [Progress View](../../ProgressView) for the linear implementation. |
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| <img src="assets/activityindicator.gif" alt="An animation showing a determinate and indeterminate activity indicator." width="115"> |
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| ## Related components |
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| * [ProgressView](../../ProgressView) |
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| ## Overview |
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| `MDCActivityIndicator` is a view that has two modes: indeterminate and determinate. Indeterminate |
| indicators express an unspecified wait time, while determinate indicators represent the length of a |
| process. Activity indicators are indeterminate by default. |
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| ## Installation |
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| - [Typical installation](../../../docs/component-installation.md) |
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| ## Usage |
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| - [Typical use: Indeterminate](typical-use-indeterminate.md) |
| - [Typical use: Determinate](typical-use-determinate.md) |
| - [Showing multiple indeterminate colors](multiple-colors.md) |
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| ## Extensions |
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| - [Color Theming](color-theming.md) |
