Files
packages_apps_Settings/src/com/android/settings/widget/ValidatedEditTextPreference.java
Antony Sargent 9be8c3fbfe Fix focus behavior of ValidatedEditTextPreference
The bug report was that the cursor is set to the beginning of the
EditText for wifi hotspot password field, instead of at the end (or
having the entire field selected). This fix makes it so that all
ValidatedEditTextPreference's will put the cursor at the end of the
EditText.

Bug: 65413206
Test: make RunSettingsRoboTests
Change-Id: I23f3bb1b3f1b49b2f193c0ae2e103eae5c1a1019
2017-09-11 10:12:05 -07:00

115 lines
3.7 KiB
Java

/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.widget;
import android.app.AlertDialog;
import android.content.Context;
import android.support.annotation.VisibleForTesting;
import android.text.Editable;
import android.text.InputType;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import com.android.settingslib.CustomEditTextPreference;
/**
* {@code EditTextPreference} that supports input validation.
*/
public class ValidatedEditTextPreference extends CustomEditTextPreference {
public interface Validator {
boolean isTextValid(String value);
}
private final EditTextWatcher mTextWatcher = new EditTextWatcher();
private Validator mValidator;
private boolean mIsPassword;
public ValidatedEditTextPreference(Context context, AttributeSet attrs,
int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
public ValidatedEditTextPreference(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public ValidatedEditTextPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ValidatedEditTextPreference(Context context) {
super(context);
}
@Override
protected void onBindDialogView(View view) {
super.onBindDialogView(view);
final EditText editText = view.findViewById(android.R.id.edit);
if (editText != null && !TextUtils.isEmpty(editText.getText())) {
editText.setSelection(editText.getText().length());
}
if (mValidator != null && editText != null) {
editText.removeTextChangedListener(mTextWatcher);
if (mIsPassword) {
editText.setInputType(
InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
editText.setMaxLines(1);
}
editText.addTextChangedListener(mTextWatcher);
}
}
public void setIsPassword(boolean isPassword) {
mIsPassword = isPassword;
}
@VisibleForTesting(otherwise = VisibleForTesting.NONE)
public boolean isPassword() {
return mIsPassword;
}
public void setValidator(Validator validator) {
mValidator = validator;
}
private class EditTextWatcher implements TextWatcher {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void beforeTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
final EditText editText = getEditText();
if (mValidator != null && editText != null) {
final AlertDialog dialog = (AlertDialog) getDialog();
final boolean valid = mValidator.isTextValid(editText.getText().toString());
dialog.getButton(AlertDialog.BUTTON_POSITIVE).setEnabled(valid);
}
}
}
}