如何将语音识别器输入设置为俄语？

Question

我想改变俄语作为输入语言，但它不起作用。你知道我怎么做吗？

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Intent i5 = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
       	
    	   i5.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "ru-RU");
    	      i5.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak");
  	        startActivityForResult(i5, check);

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