android.widget.EditText#getText ( )源码实例Demo

private void markdownNumberedList() {
    final EditText et = mContentET;
    Editable editable = et.getText();
    int start = et.getSelectionStart();
    String list = String.format(NUM_LIST, mListIndex);
    int diff = list.length();
    if (et.hasSelection()) {
        int end = et.getSelectionEnd();
        editable.insert(end, ENTER);
        editable.insert(start, list);
        et.setSelection(start + diff, end + diff);
    } else {
        editable.insert(start, list);
        et.setSelection(start + diff);
    }
}
 

public void SaveContact(View v) {

        EditText phoneNumberField = (EditText) findViewById(R.id.inputField);
        if (phoneNumberField.getText().toString().isEmpty()) {
            Alert_Dialog_Blank_Input();
        } else {
            Intent intent = new Intent(ContactsContract.Intents.Insert.ACTION);
            intent.setType(ContactsContract.RawContacts.CONTENT_TYPE);
            mPhoneNumber = (EditText) findViewById(R.id.inputField);

            CountryCodePicker cpp = (CountryCodePicker) findViewById(R.id.cpp);
            String mNo = cpp.getFullNumberWithPlus() + mPhoneNumber.getText();
            intent.putExtra(ContactsContract.Intents.Insert.PHONE, mNo);

            startActivity(intent);
        }

    }
 

/**
 * Invoke this when you want to validate the contained {@code EditText} input text against the
 * provided {@link Validator}. For validating multiple {@code ValidatingTextInputLayout}
 * objects at once, call {@link Validators#validate(ValidatingTextInputLayout...)}. Throws an
 * {@code IllegalStateException} if either no validator has been set or an error is triggered
 * and no error label is set.
 */
public boolean validate() {
    if (validator == null) {
        throw new IllegalStateException("A Validator must be set; call setValidator first.");
    }

    CharSequence input = "";
    EditText editText = getEditText();
    if (editText != null) {
        input = editText.getText();
    }

    boolean valid = validator.isValid(input.toString());
    if (valid) {
        setError(null);
    } else {
        if (errorLabel == null) {
            throw new IllegalStateException("An error label must be set when validating an " +
                    "invalid input; call setErrorLabel or app:errorLabel first.");
        }
        setError(errorLabel);
    }

    return valid;
}
 

/**
 * Called when the user wants to append an entry to the history.
 */
public void updateHistory(View view) {
    // Get the text to add and timestamp.
    EditText editText = (EditText) view.getRootView().findViewById(R.id.editText);
    CharSequence textToAdd = editText.getText();
    long timestamp = System.currentTimeMillis();

    // Show it back to the user.
    appendEntryToView(textToAdd.toString(), timestamp);

    // Update the history.
    mLogHistory.addEntry(textToAdd.toString(), timestamp);

    // Reset the EditText.
    editText.setText("");
}
 

@Override
public boolean validateExpiredDate(EditText creditCardExpiredDate, boolean update) {

    String expiredDate;
    boolean validExpiredDate = false;

    if (creditCardExpiredDate.getText() != null && !TextUtils.isEmpty(
            expiredDate = creditCardExpiredDate.getText().toString())) {

        expiredDate = expiredDate.trim().replace(" ", "");
        if ((validExpiredDate = isValidExpiredDate(expiredDate)) && update) {
            creditCardExpiredDate.setText(expiredDate);
        }
    }

    return validExpiredDate;

}
 

private void markdownCode() {
    final EditText et = mContentET;
    Editable editable = et.getText();
    int start = et.getSelectionStart();
    if (et.hasSelection()) {
        int end = et.getSelectionEnd();
        editable.insert(end, CODE);
        editable.insert(start, CODE);
        et.setSelection(start + 1, end + 1);
    } else {
        editable.insert(start, CODE2);
        et.setSelection(start + 1);
    }
}
 

private char[] getEnteredPassphrase(final EditText editText) {
  int len = editText.length();
  char[] passphrase = new char[len];
  if (editText.getText() != null) {
    editText.getText().getChars(0, len, passphrase, 0);
  }
  return passphrase;
}
 

/**
 * 判断edittext是否null
 */
public static String checkEditText(EditText editText) {
	if (editText != null && editText.getText() != null
			&& !(editText.getText().toString().trim().equals(""))) {
		return editText.getText().toString().trim();
	} else {
		return "";
	}
}
 

/**
 * This method is called when the order button is clicked.
 */
public void submitOrder(View view) {
    // Get user's name
    EditText nameField = (EditText) findViewById(R.id.name_field);
    Editable nameEditable = nameField.getText();
    String name = nameEditable.toString();

    // Figure out if the user wants whipped cream topping
    CheckBox whippedCreamCheckBox = (CheckBox) findViewById(R.id.whipped_cream_checkbox);
    boolean hasWhippedCream = whippedCreamCheckBox.isChecked();

    // Figure out if the user wants choclate topping
    CheckBox chocolateCheckBox = (CheckBox) findViewById(R.id.chocolate_checkbox);
    boolean hasChocolate = chocolateCheckBox.isChecked();

    // Calculate the price
    int price = calculatePrice(hasWhippedCream, hasChocolate);

    // Display the order summary on the screen
    String message = createOrderSummary(name, price, hasWhippedCream, hasChocolate);

    // Use an intent to launch an email app.
    // Send the order summary in the email body.
    Intent intent = new Intent(Intent.ACTION_SENDTO);
    intent.setData(Uri.parse("mailto:")); // only email apps should handle this
    intent.putExtra(Intent.EXTRA_SUBJECT,
            getString(R.string.order_summary_email_subject, name));
    intent.putExtra(Intent.EXTRA_TEXT, message);

    if (intent.resolveActivity(getPackageManager()) != null) {
        startActivity(intent);
    }
}
 

private long getLongValue(EditText editText) {
    CharSequence text = editText.getText();
    if (TextUtils.isEmpty(text)) {
        return 0L;
    }
    return Long.parseLong(text.toString());
}
 

private void markdownUpload() {
    final EditText et = mContentET;
    Editable editable = et.getText();
    mUploadSelection = new Selection(et);
    CharSequence des = null;
    if (!mUploadSelection.isEmpty()) {
        des = editable.subSequence(mUploadSelection.start, mUploadSelection.end);
    }
    AddLinkFragment.newInstance(des, AddLinkFragment.MD_IMG).show(getChildFragmentManager(), "add_link_tag");
}
 

private void markdownLink() {
    final EditText et = mContentET;
    Editable editable = et.getText();
    mLinkSelection = new Selection(et);
    CharSequence des = null;
    if (!mLinkSelection.isEmpty()) {
        des = editable.subSequence(mLinkSelection.start, mLinkSelection.end);
    }
    AddLinkFragment.newInstance(des).show(getChildFragmentManager(), "add_link_tag");
}
 

private void onSendFeedBack(EditText feedback)
{
    if (feedback.getText() == null || "".equals(feedback.getText().toString()))
    {
        feedback.setError("Please write your feedback here!");
    } else
    {
        Intent intent = new Intent(Intent.ACTION_SENDTO);
        intent.setData(Uri.parse("mailto:[email protected]"));
        intent.putExtra(Intent.EXTRA_SUBJECT, "CodePolitan Feedback");
        intent.putExtra(Intent.EXTRA_TEXT, feedback.getText() + "\n\nSent from CodePolitan Apps.");
        startActivity(intent);
    }
}
 

private void setViewEnabledState() {
    boolean enabledState = true;
    for (EditText editText : toWatch) {
        CharSequence text = editText.getText();
        if (text == null || text.toString().trim().length() == 0) {
            enabledState = false;
            break;
        }
    }
    toEnable.setEnabled(enabledState);
}
 

/**
 * Performs formatting.
 */
private static void format(EditText editText, TextWatcher mainWatcher, TextWatcher[] otherWatchers ) {

    Editable text = editText.getText();
    CharSequence formatted = WhatsappViewCompat.extractFlagsForEditText(text);
    removeTextChangedListener(editText,mainWatcher);
    int selectionEnd = editText.getSelectionEnd();
    int selectionStart = editText.getSelectionStart();
    editText.setText(formatted);
    editText.setSelection(selectionStart, selectionEnd);
    Editable formattedEditableText = editText.getText();
    sendAfterTextChanged(otherWatchers, formattedEditableText);
    addTextChangedListener(editText, mainWatcher);
}
 

public static boolean isEmpty(EditText value) {
  return value == null || value.getText() == null || TextUtils.isEmpty(value.getText().toString());
}
 

public PerformEdit(@NonNull EditText editText) {
    CheckNull(editText, "EditText不能为空");
    this.editable = editText.getText();
    this.editText = editText;
    editText.addTextChangedListener(new Watcher());
}
 

Editable getText(EditText editText) {
    return editText.getText();
}
 

@Override
public boolean validateSecurityCode(IssuerCode issuerCode, EditText creditCardSecurityCode, boolean update) {

    String value;
    boolean result = false;

    if (creditCardSecurityCode.getText() != null && !TextUtils.isEmpty(
            value = creditCardSecurityCode.getText().toString())) {

        value = value.trim().replace(" ", "");

        int minDigits = issuerCode == IssuerCode.AMEX ? 4 : 3;

        if ((result = value.length() == minDigits && TextUtils.isDigitsOnly(value)) && update) {
            creditCardSecurityCode.setText(value);
        }
    }

    return result;

}
 

public VMEditor(@NonNull EditText editText) {
    CheckNull(editText, "EditText不能为空");
    this.editable = editText.getText();
    this.editText = editText;
    editText.addTextChangedListener(new Watcher());
}