如何以编程方式启动Google即时语音搜索？

Question

我想在用户按下按钮时启动Google即时语音搜索.但是,我找不到意图在文档中开始搜索.

有人知道如何开始Google Now语音搜索的活动吗？

Answer 1

语音输入的呼叫活动:

/* Call Activity for Voice Input */
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);

intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US");

try {
    startActivityForResult(intent, 1);
} catch (ActivityNotFoundException a) {
    Toast.makeText(context, "Oops! Your device doesn't support Speech to Text",Toast.LENGTH_SHORT).show();
}

从字符串获取输入:

(我在搜索视图中用于设置文本并搜索该值)

/* When Mic activity close */
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
    case 1: {
        if (resultCode == Activity.RESULT_OK && null != data) {
            String yourResult = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS).get(0);
        }
        break;
    }
    }
}

Answer 2

用途ACTION_RECOGNIZE_SPEECH:

private static final int RECOGNIZER_REQ_CODE = 1234;

Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
startActivityForResult(intent, RECOGNIZER_REQ_CODE);

请注意,您必须使用startActivityForResult()为startActivity()不支持.有关详细信息,请参阅上述链接文档.

Answer 3

您需要启动一个仅设置了Action的活动,android.intent.action.VOICE_ASSIST并弹出Google Now语音识别器.使用开发人员工具尝试:

adb shell am start -a android.intent.action.VOICE_ASSIST