第二个活动中的输出不起作用

时间:2018-06-20 08:55:32

标签: java android android-activity

我正在Android Studio上进行语音识别。

MainActivity.java:

public class MainActivity extends AppCompatActivity {

    private TextView voiceInput;
    private TextView speakButton;
    private final int REQ_CODE_SPEECH_INPUT = 100;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        voiceInput = (TextView) findViewById(R.id.voiceInput);
        speakButton = (TextView) findViewById(R.id.btnSpeak);

        speakButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                askSpeechInput();
            }
        });
    }

    // Showing google speech input dialog

    private void askSpeechInput() {
        Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
        intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
                "Hi speak something");
        try {
            startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
        } catch (ActivityNotFoundException a) {

        }
    }

    // Receiving speech input

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

        switch (requestCode) {
            case REQ_CODE_SPEECH_INPUT: {
                if (resultCode == RESULT_OK && null != data) {
                    ArrayList<String> result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                    voiceInput.setText(result.get(0));
                }
                break;
            }
        }
    }
}

您可以看到最后一部分是输出的 负责任

    // Receiving speech input


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
        case REQ_CODE_SPEECH_INPUT: {
            if (resultCode == RESULT_OK && null != data) {
                ArrayList<String> result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                voiceInput.setText(result.get(0));
            }
            break;
        }
    }
}

我的问题
现在,我创建了第二个活动,并希望在那里接收输出,因此我在上面复制了这些代码块并将其粘贴。它没有用。
如何让语音输入的输出出现在第二个活动中?
如果您需要更多信息,请让我知道,对于这个愚蠢的问题,我感到抱歉,我认为解决方案非常简单,但我无法对其进行罚款!

2 个答案:

答案 0 :(得分:0)

尝试将结果数据发送到第二个活动中,如下面的代码。

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
        case REQ_CODE_SPEECH_INPUT: {
            if (resultCode == RESULT_OK && null != data) {

                ArrayList<String> result = data
                        .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
                voiceInput.setText(result.get(0));
                Intent intent=new Intent(this,SecondActivity.class);
                intent.putStringArrayListExtra("result",result);
                startActivity(intent);
            }
            break;
        }

    }
}

onCreate方法中的第二个活动,在下面的行中调用以获取结果。

result_list = getIntent().getStringArrayListExtra("result");

之后,result_list数据将显示到textview和其他视图中。

确保两个活动都定义到android清单文件中。

答案 1 :(得分:0)

You can pass an ArrayList<E> to Your SecondActivity.

示例:

ArrayList<String> yourList = new ArrayList<String>();
intent.putExtra("yourlist", yourList);

在另一个活动中:

ArrayList<String> yourList = (ArrayList<String>) 
getIntent().getSerializableExtra("yourlist");