我的代码结构如下所示;
InputActivity，有开销按钮，收听按钮，语音按钮（此东西属于InputActivity）和片段部分。
如果单击开销按钮，则片段部分将更改为expensefragment，如果单击earningbutton，则片段部分将更改为earningfragment。
每个片段都有一个EditText - 费用，解释。
如果单击“语音”按钮，则会启动SpeechToText API。
我想要做的是向每个片段发送一个语音结果。我尝试了很多东西，但我找不到让它发挥作用的方法。
我的代码如下;
public class InputActivity extends FragmentActivity implements OnClickListener {
private final int GOOGLE_STT = 1000;
final String TAG = "InputActivity";
int mCurrentFragmentIndex;
private ArrayList<String> mResult;
private TextView mResultTextView01;
private TextView mResultTextView02;
public final static int FRAGMENT_ONE = 0;
public final static int FRAGMENT_TWO = 1;
public final static int FRAGMENT_THREE = 2;
public final static int FRAGMENT_FOUR = 3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_input);
Button bt_oneFragment = (Button) findViewById(R.id.bt_oneFragment);
Button bt_twoFragment = (Button) findViewById(R.id.bt_twoFragment);
Button bt_threeFragment = (Button) findViewById(R.id.bt_threeFragment);
Button bt_fourFragment = (Button) findViewById(R.id.bt_fourFragment);
Button bt_voice = (Button) findViewById(R.id.bt_Voice);
bt_oneFragment.setOnClickListener(this);
bt_twoFragment.setOnClickListener(this);
bt_threeFragment.setOnClickListener(this);
bt_fourFragment.setOnClickListener(this);
bt_voice.setOnClickListener(this);
mResultTextView01 = (EditText)findViewById(R.id.cost); // I know it is not working
mResultTextView02 = (EditText)findViewById(R.id.explanation); //
mCurrentFragmentIndex = FRAGMENT_ONE;
fragmentReplace(mCurrentFragmentIndex);
}
public void fragmentReplace(int reqNewFragmentIndex) {
Fragment newFragment = null;
newFragment = getFragment(reqNewFragmentIndex);
// replace fragment
final FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.display_fragment, newFragment);
// Commit the transaction
transaction.commit();
}
private Fragment getFragment(int idx) {
Fragment newFragment = null;
switch (idx) {
case FRAGMENT_ONE:
newFragment = new ExpenseCashFragment();
break;
case FRAGMENT_TWO:
newFragment = new ExpenseAccountFragment();
break;
case FRAGMENT_THREE:
newFragment = new EarningCashFragment();
break;
case FRAGMENT_FOUR:
newFragment = new EarningAccountFragment();
break;
default:
Log.d(TAG, "Unhandle case");
}
return newFragment;
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.bt_oneFragment:
mCurrentFragmentIndex = FRAGMENT_ONE;
fragmentReplace(mCurrentFragmentIndex);
break;
case R.id.bt_twoFragment:
mCurrentFragmentIndex = FRAGMENT_TWO;
fragmentReplace(mCurrentFragmentIndex);
break;
case R.id.bt_threeFragment:
mCurrentFragmentIndex = FRAGMENT_THREE;
fragmentReplace(mCurrentFragmentIndex);
break;
case R.id.bt_fourFragment:
mCurrentFragmentIndex = FRAGMENT_FOUR;
fragmentReplace(mCurrentFragmentIndex);
break;
default:
}
if (v.getId() == R.id.bt_Voice){
Intent i = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
i.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, getPackageName());
i.putExtra(RecognizerIntent.EXTRA_LANGUAGE, "ko-KR");
i.putExtra(RecognizerIntent.EXTRA_PROMPT, "speak.");
startActivityForResult(i, GOOGLE_STT);;
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data){
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.display_fragment);
fragment.onActivityResult(requestCode, resultCode, data);
if( resultCode == RESULT_OK ){
showResult(requestCode, data);
}
else{
String msg = null;
switch(resultCode){
case SpeechRecognizer.ERROR_AUDIO:
msg = "";
break;
case SpeechRecognizer.ERROR_CLIENT:
msg = "";
break;
case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
msg = "";
break;
case SpeechRecognizer.ERROR_NETWORK:
case SpeechRecognizer.ERROR_NETWORK_TIMEOUT:
msg = ".";
break;
case SpeechRecognizer.ERROR_NO_MATCH:
msg = ".";
break;
case SpeechRecognizer.ERROR_RECOGNIZER_BUSY:
msg = ".";
break;
case SpeechRecognizer.ERROR_SERVER:
msg = ".";
break;
case SpeechRecognizer.ERROR_SPEECH_TIMEOUT:
msg = ".";
break;
}
if(msg != null)
Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_SHORT).show();
}
} private void showResult(int requestCode, Intent data){
String key = "";
if(requestCode == GOOGLE_STT)
key = RecognizerIntent.EXTRA_RESULTS;
mResult = data.getStringArrayListExtra(key);
String[] result = new String[mResult.size()];
mResult.toArray(result);
String i = result[0];
String[] count = i.split(" ");
mResultTextView01.setText(""+count[0]);
mResultTextView02.setText(""+count[1]);
}
}
，其中一个片段代码如下所示
public class ExpenseCashFragment extends Fragment implements OnClickListener, AdapterView.OnItemSelectedListener
{
DatePicker datepicker;
Spinner spinner;
Button button;
EditText cost, explanation;
DBAdapter dbAdapter;
String st; // Just for transferring the category data
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.expensecashfragment, container, false);
spinner = (Spinner) view.findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getActivity(),
R.array.expenseCategory, android.R.layout.simple_spinner_item);
// Specify the layout to use when the list of choices appears
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Apply the adapter to the spinner
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
datepicker = (DatePicker)view.findViewById(R.id.datepicker);
//If you want to use this in Activity in the Fragment use getActivity() instead
openDB();
return view;
}
@Override
public void onDestroy()
{
closeDB();
}
private void openDB() {
dbAdapter = new DBAdapter(getActivity());
dbAdapter.openW();
}
public void enterData()
{
String date = setDate();
if(cost.getText().toString() == null)
return;
int cost_value = Integer.parseInt(cost.getText().toString());
String explanation_value = explanation.getText().toString();
//Message.message(getActivity(), date + " " + st + " " + cost_value + " " + explanation_value );
//category string is in the st
CashExpenseTable ce = new CashExpenseTable(date, st, cost_value, explanation_value);
long id = dbAdapter.addCashExpense(ce);
if(id > 0)
{
Message.message(getActivity(), "Successfully inserted a row " + id);
}
else
{
Message.message(getActivity(), "Unsuccessful");
}
startActivity(new Intent(this.getActivity(), MainActivity.class));
}
private void closeDB()
{
dbAdapter.close();
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position,long id) {
TextView myText = (TextView) view;
Toast.makeText(getActivity(), "You selected " + myText.getText(), Toast.LENGTH_SHORT).show();
st = (String) myText.getText();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
///////////////////////////////////////////////////////// For the datePicker
public String setDate()
{
int day = datepicker.getDayOfMonth();
int month = datepicker.getMonth() + 1;
int year = datepicker.getYear();
//Toast.makeText(getActivity(), "Today : " + year + "/" + month + "/" + day, Toast.LENGTH_LONG).show();
return year + "-" + month + "-" + day;
}
@Override
public void onClick(View v)
{
switch (v.getId()) {
case R.id.enterButton:
//Toast.makeText(getActivity(), "Input completed", Toast.LENGTH_SHORT).show();
enterData();
break;
default:
}
}
}
我甚至尝试将语音识别代码放入片段中，但我无法使其工作。
答案 0 :(得分：1)
您的Fragment需要为onActivityResult()方法提供覆盖。您目前正在查找有效的Fragment并调用该方法，但您的Fragment并未提供实施。