# TextDirectionHeuristicsCompat

Artifact: [androidx.core:core](https://developer.android.com/jetpack/androidx/releases/core) [View Source](https://cs.android.com/search?q=file:androidx/core/text/TextDirectionHeuristicsCompat.java+class:androidx.core.text.TextDirectionHeuristicsCompat) Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

*** ** * ** ***


```
public final class TextDirectionHeuristicsCompat
```

<br />

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Some objects that implement TextDirectionHeuristic.

## Summary

| ### Constants |
|---|---|
| `static final https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicCompat` | `https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicsCompat#ANYRTL_LTR()` If the text contains any strong right to left non-format character, determines that the direction is right to left, falling back to left to right if it finds none. |
| `static final https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicCompat` | `https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicsCompat#FIRSTSTRONG_LTR()` Determines the direction based on the first strong directional character, including bidi format chars, falling back to left to right if it finds none. |
| `static final https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicCompat` | `https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicsCompat#FIRSTSTRONG_RTL()` Determines the direction based on the first strong directional character, including bidi format chars, falling back to right to left if it finds none. |
| `static final https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicCompat` | `https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicsCompat#LOCALE()` Force the paragraph direction to the Locale direction. |
| `static final https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicCompat` | `https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicsCompat#LTR()` Always decides that the direction is left to right. |
| `static final https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicCompat` | `https://developer.android.com/reference/androidx/core/text/TextDirectionHeuristicsCompat#RTL()` Always decides that the direction is right to left. |

## Constants

### ANYRTL_LTR

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

```
public static final TextDirectionHeuristicCompat ANYRTL_LTR
```

If the text contains any strong right to left non-format character, determines that the direction is right to left, falling back to left to right if it finds none.

### FIRSTSTRONG_LTR

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

```
public static final TextDirectionHeuristicCompat FIRSTSTRONG_LTR
```

Determines the direction based on the first strong directional character, including bidi format chars, falling back to left to right if it finds none. This is the default behavior of the Unicode Bidirectional Algorithm.

### FIRSTSTRONG_RTL

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

```
public static final TextDirectionHeuristicCompat FIRSTSTRONG_RTL
```

Determines the direction based on the first strong directional character, including bidi format chars, falling back to right to left if it finds none. This is similar to the default behavior of the Unicode Bidirectional Algorithm, just with different fallback behavior.

### LOCALE

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

```
public static final TextDirectionHeuristicCompat LOCALE
```

Force the paragraph direction to the Locale direction. Falls back to left to right.

### LTR

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

```
public static final TextDirectionHeuristicCompat LTR
```

Always decides that the direction is left to right.

### RTL

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/core#1.1.0)

```
public static final TextDirectionHeuristicCompat RTL
```

Always decides that the direction is right to left.