如何在文本视图中获取文本语言？

Question

我的 android 消息传递应用程序中有一个文本视图我收到 android phone 的消息并在文本视图中显示它们我想将 layout_gravity 设置为右侧如果文本是波斯语，那么如何检测从 uri 下方获取的文本语言？

Uri uri = Uri.parse("content://sms/");

Answer 1

有 Bidi class. This class has getBaseLevel() 方法 returns 0 如果您的文本是 left-to-right 否则 1 （如果 right-to-left）。

示例：

@Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder holder;

        Bidi bidi = new Bidi(userList.get(position).getName(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
        if(bidi.getBaseLevel() == 0)
            convertView = myInflater.inflate(R.layout.list_add_friends_row, null);
        else
            convertView = myInflater.inflate(R.layout.list_add_friends_row_mirror, null);

还有另一种方法，baseIsLeftToRight() 可能更适合在 if 语句中使用。结果同上。

Bidi bidi = new Bidi(userList.get(position).getName(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
if(bidi.baseIsLeftToRight())
                convertView = myInflater.inflate(R.layout.list_add_friends_row, null);
            else
                convertView = myInflater.inflate(R.layout.list_add_friends_row_mirror, null);

SRC：

public final class Bidi
extends Object

This class implements the Unicode Bidirectional Algorithm.

A Bidi object provides information on the bidirectional reordering of the text used to create it. This is required, for example, to properly display Arabic or Hebrew text. These languages are inherently mixed directional, as they order numbers from left-to-right while ordering most other text from right-to-left.

Once created, a Bidi object can be queried to see if the text it represents is all left-to-right or all right-to-left. Such objects are very lightweight and this text is relatively easy to process.

If there are multiple runs of text, information about the runs can be accessed by indexing to get the start, limit, and level of a run. The level represents both the direction and the 'nesting level' of a directional run. Odd levels are right-to-left, while even levels are left-to-right. So for example level 0 represents left-to-right text, while level 1 represents right-to-left text, and level 2 represents left-to-right text embedded in a right-to-left run.

如何在文本视图中获取文本语言？

how to get language of text in a textview?

sms

android

persian

detection