Java tutorial
/* * This is the source code of Telegram for Android v. 3.x.x * It is licensed under GNU GPL v. 2 or later. * You should have received a copy of the license in this archive (see LICENSE). * * Copyright Nikolai Kudashov, 2013-2015. */ package com.goftagram.telegram.ui; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.res.Configuration; import android.graphics.Typeface; import android.os.Build; import android.os.Vibrator; import android.support.v4.hardware.fingerprint.FingerprintManagerCompat; import android.text.Editable; import android.text.InputFilter; import android.text.InputType; import android.text.TextUtils; import android.text.TextWatcher; import android.text.method.DigitsKeyListener; import android.text.method.PasswordTransformationMethod; import android.util.TypedValue; import android.view.ActionMode; import android.view.ContextMenu; import android.view.Gravity; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.ViewTreeObserver; import android.view.inputmethod.EditorInfo; import android.widget.AdapterView; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import com.goftagram.telegram.messenger.AndroidUtilities; import com.goftagram.telegram.messenger.LocaleController; import com.goftagram.telegram.messenger.NotificationCenter; import com.goftagram.telegram.messenger.ApplicationLoader; import com.goftagram.telegram.messenger.FileLog; import com.goftagram.telegram.messenger.R; import com.goftagram.telegram.messenger.UserConfig; import com.goftagram.telegram.messenger.Utilities; import com.goftagram.telegram.ui.ActionBar.ActionBar; import com.goftagram.telegram.ui.ActionBar.ActionBarMenu; import com.goftagram.telegram.ui.ActionBar.ActionBarMenuItem; import com.goftagram.telegram.ui.ActionBar.BaseFragment; import com.goftagram.telegram.ui.Adapters.BaseFragmentAdapter; import com.goftagram.telegram.ui.Cells.TextCheckCell; import com.goftagram.telegram.ui.Cells.TextInfoPrivacyCell; import com.goftagram.telegram.ui.Cells.TextSettingsCell; import com.goftagram.telegram.ui.Components.LayoutHelper; import com.goftagram.telegram.ui.Components.NumberPicker; public class PasscodeActivity extends BaseFragment implements NotificationCenter.NotificationCenterDelegate { private ListAdapter listAdapter; private ListView listView; private TextView titleTextView; private EditText passwordEditText; private TextView dropDown; private ActionBarMenuItem dropDownContainer; private int type; private int currentPasswordType = 0; private int passcodeSetStep = 0; private String firstPassword; private int passcodeRow; private int changePasscodeRow; private int passcodeDetailRow; private int fingerprintRow; private int autoLockRow; private int autoLockDetailRow; private int rowCount; private final static int done_button = 1; private final static int pin_item = 2; private final static int password_item = 3; public PasscodeActivity(int type) { super(); this.type = type; } @Override public boolean onFragmentCreate() { super.onFragmentCreate(); updateRows(); if (type == 0) { NotificationCenter.getInstance().addObserver(this, NotificationCenter.didSetPasscode); } return true; } @Override public void onFragmentDestroy() { super.onFragmentDestroy(); if (type == 0) { NotificationCenter.getInstance().removeObserver(this, NotificationCenter.didSetPasscode); } } @Override public View createView(Context context) { if (type != 3) { actionBar.setBackButtonImage(R.drawable.ic_ab_back); } actionBar.setAllowOverlayTitle(false); actionBar.setActionBarMenuOnItemClick(new ActionBar.ActionBarMenuOnItemClick() { @Override public void onItemClick(int id) { if (id == -1) { finishFragment(); } else if (id == done_button) { if (passcodeSetStep == 0) { processNext(); } else if (passcodeSetStep == 1) { processDone(); } } else if (id == pin_item) { currentPasswordType = 0; updateDropDownTextView(); } else if (id == password_item) { currentPasswordType = 1; updateDropDownTextView(); } } }); fragmentView = new FrameLayout(context); FrameLayout frameLayout = (FrameLayout) fragmentView; if (type != 0) { ActionBarMenu menu = actionBar.createMenu(); menu.addItemWithWidth(done_button, R.drawable.ic_done, AndroidUtilities.dp(56)); titleTextView = new TextView(context); titleTextView.setTextColor(0xff757575); if (type == 1) { if (UserConfig.passcodeHash.length() != 0) { titleTextView .setText(LocaleController.getString("EnterNewPasscode", R.string.EnterNewPasscode)); } else { titleTextView.setText( LocaleController.getString("EnterNewFirstPasscode", R.string.EnterNewFirstPasscode)); } } else { titleTextView .setText(LocaleController.getString("EnterCurrentPasscode", R.string.EnterCurrentPasscode)); } titleTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18); titleTextView.setGravity(Gravity.CENTER_HORIZONTAL); frameLayout.addView(titleTextView); FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) titleTextView.getLayoutParams(); layoutParams.width = LayoutHelper.WRAP_CONTENT; layoutParams.height = LayoutHelper.WRAP_CONTENT; layoutParams.gravity = Gravity.CENTER_HORIZONTAL; layoutParams.topMargin = AndroidUtilities.dp(38); titleTextView.setLayoutParams(layoutParams); passwordEditText = new EditText(context); passwordEditText.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 20); passwordEditText.setTextColor(0xff000000); passwordEditText.setMaxLines(1); passwordEditText.setLines(1); passwordEditText.setGravity(Gravity.CENTER_HORIZONTAL); passwordEditText.setSingleLine(true); if (type == 1) { passcodeSetStep = 0; passwordEditText.setImeOptions(EditorInfo.IME_ACTION_NEXT); } else { passcodeSetStep = 1; passwordEditText.setImeOptions(EditorInfo.IME_ACTION_DONE); } passwordEditText.setTransformationMethod(PasswordTransformationMethod.getInstance()); passwordEditText.setTypeface(Typeface.DEFAULT); AndroidUtilities.clearCursorDrawable(passwordEditText); frameLayout.addView(passwordEditText); layoutParams = (FrameLayout.LayoutParams) passwordEditText.getLayoutParams(); layoutParams.topMargin = AndroidUtilities.dp(90); layoutParams.height = AndroidUtilities.dp(36); layoutParams.leftMargin = AndroidUtilities.dp(40); layoutParams.gravity = Gravity.TOP | Gravity.LEFT; layoutParams.rightMargin = AndroidUtilities.dp(40); layoutParams.width = LayoutHelper.MATCH_PARENT; passwordEditText.setLayoutParams(layoutParams); passwordEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() { @Override public boolean onEditorAction(TextView textView, int i, KeyEvent keyEvent) { if (passcodeSetStep == 0) { processNext(); return true; } else if (passcodeSetStep == 1) { processDone(); return true; } return false; } }); passwordEditText.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { if (passwordEditText.length() == 4) { if (type == 2 && UserConfig.passcodeType == 0) { processDone(); } else if (type == 1 && currentPasswordType == 0) { if (passcodeSetStep == 0) { processNext(); } else if (passcodeSetStep == 1) { processDone(); } } } } }); if (android.os.Build.VERSION.SDK_INT < 11) { passwordEditText.setOnCreateContextMenuListener(new View.OnCreateContextMenuListener() { public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) { menu.clear(); } }); } else { passwordEditText.setCustomSelectionActionModeCallback(new ActionMode.Callback() { public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; } public void onDestroyActionMode(ActionMode mode) { } public boolean onCreateActionMode(ActionMode mode, Menu menu) { return false; } public boolean onActionItemClicked(ActionMode mode, MenuItem item) { return false; } }); } if (type == 1) { dropDownContainer = new ActionBarMenuItem(context, menu, R.drawable.bar_selector); dropDownContainer.setSubMenuOpenSide(1); dropDownContainer.addSubItem(pin_item, LocaleController.getString("PasscodePIN", R.string.PasscodePIN), 0); dropDownContainer.addSubItem(password_item, LocaleController.getString("PasscodePassword", R.string.PasscodePassword), 0); actionBar.addView(dropDownContainer); layoutParams = (FrameLayout.LayoutParams) dropDownContainer.getLayoutParams(); layoutParams.height = LayoutHelper.MATCH_PARENT; layoutParams.width = LayoutHelper.WRAP_CONTENT; layoutParams.rightMargin = AndroidUtilities.dp(40); layoutParams.leftMargin = AndroidUtilities.isTablet() ? AndroidUtilities.dp(64) : AndroidUtilities.dp(56); layoutParams.gravity = Gravity.TOP | Gravity.LEFT; dropDownContainer.setLayoutParams(layoutParams); dropDownContainer.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { dropDownContainer.toggleSubMenu(); } }); dropDown = new TextView(context); dropDown.setGravity(Gravity.LEFT); dropDown.setSingleLine(true); dropDown.setLines(1); dropDown.setMaxLines(1); dropDown.setEllipsize(TextUtils.TruncateAt.END); dropDown.setTextColor(0xffffffff); dropDown.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf")); dropDown.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_arrow_drop_down, 0); dropDown.setCompoundDrawablePadding(AndroidUtilities.dp(4)); dropDown.setPadding(0, 0, AndroidUtilities.dp(10), 0); dropDownContainer.addView(dropDown); layoutParams = (FrameLayout.LayoutParams) dropDown.getLayoutParams(); layoutParams.width = LayoutHelper.WRAP_CONTENT; layoutParams.height = LayoutHelper.WRAP_CONTENT; layoutParams.leftMargin = AndroidUtilities.dp(16); layoutParams.gravity = Gravity.CENTER_VERTICAL; layoutParams.bottomMargin = AndroidUtilities.dp(1); dropDown.setLayoutParams(layoutParams); } else { actionBar.setTitle(LocaleController.getString("Passcode", R.string.Passcode)); } updateDropDownTextView(); } else { actionBar.setTitle(LocaleController.getString("Passcode", R.string.Passcode)); frameLayout.setBackgroundColor(0xfff0f0f0); listView = new ListView(context); listView.setDivider(null); listView.setDividerHeight(0); listView.setVerticalScrollBarEnabled(false); listView.setDrawSelectorOnTop(true); frameLayout.addView(listView); FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) listView.getLayoutParams(); layoutParams.width = LayoutHelper.MATCH_PARENT; layoutParams.height = LayoutHelper.MATCH_PARENT; layoutParams.gravity = Gravity.TOP; listView.setLayoutParams(layoutParams); listView.setAdapter(listAdapter = new ListAdapter(context)); listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, final int i, long l) { if (i == changePasscodeRow) { presentFragment(new PasscodeActivity(1)); } else if (i == passcodeRow) { TextCheckCell cell = (TextCheckCell) view; if (UserConfig.passcodeHash.length() != 0) { UserConfig.passcodeHash = ""; UserConfig.appLocked = false; UserConfig.saveConfig(false); int count = listView.getChildCount(); for (int a = 0; a < count; a++) { View child = listView.getChildAt(a); if (child instanceof TextSettingsCell) { TextSettingsCell textCell = (TextSettingsCell) child; textCell.setTextColor(0xffc6c6c6); break; } } cell.setChecked(UserConfig.passcodeHash.length() != 0); NotificationCenter.getInstance() .postNotificationName(NotificationCenter.didSetPasscode); } else { presentFragment(new PasscodeActivity(1)); } } else if (i == autoLockRow) { if (getParentActivity() == null) { return; } AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity()); builder.setTitle(LocaleController.getString("AutoLock", R.string.AutoLock)); final NumberPicker numberPicker = new NumberPicker(getParentActivity()); numberPicker.setMinValue(0); numberPicker.setMaxValue(4); if (UserConfig.autoLockIn == 0) { numberPicker.setValue(0); } else if (UserConfig.autoLockIn == 60) { numberPicker.setValue(1); } else if (UserConfig.autoLockIn == 60 * 5) { numberPicker.setValue(2); } else if (UserConfig.autoLockIn == 60 * 60) { numberPicker.setValue(3); } else if (UserConfig.autoLockIn == 60 * 60 * 5) { numberPicker.setValue(4); } numberPicker.setFormatter(new NumberPicker.Formatter() { @Override public String format(int value) { if (value == 0) { return LocaleController.getString("Disabled", R.string.Disabled); } else if (value == 1) { return LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Minutes", 1)); } else if (value == 2) { return LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Minutes", 5)); } else if (value == 3) { return LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Hours", 1)); } else if (value == 4) { return LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Hours", 5)); } return ""; } }); builder.setView(numberPicker); builder.setNegativeButton(LocaleController.getString("Done", R.string.Done), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { which = numberPicker.getValue(); if (which == 0) { UserConfig.autoLockIn = 0; } else if (which == 1) { UserConfig.autoLockIn = 60; } else if (which == 2) { UserConfig.autoLockIn = 60 * 5; } else if (which == 3) { UserConfig.autoLockIn = 60 * 60; } else if (which == 4) { UserConfig.autoLockIn = 60 * 60 * 5; } listView.invalidateViews(); UserConfig.saveConfig(false); } }); showDialog(builder.create()); } else if (i == fingerprintRow) { UserConfig.useFingerprint = !UserConfig.useFingerprint; UserConfig.saveConfig(false); ((TextCheckCell) view).setChecked(UserConfig.useFingerprint); } } }); } return fragmentView; } @Override public void onResume() { super.onResume(); if (listAdapter != null) { listAdapter.notifyDataSetChanged(); } if (type != 0) { AndroidUtilities.runOnUIThread(new Runnable() { @Override public void run() { if (passwordEditText != null) { passwordEditText.requestFocus(); AndroidUtilities.showKeyboard(passwordEditText); } } }, 200); } fixLayoutInternal(); } @Override public void didReceivedNotification(int id, Object... args) { if (id == NotificationCenter.didSetPasscode) { if (type == 0) { updateRows(); if (listAdapter != null) { listAdapter.notifyDataSetChanged(); } } } } private void updateRows() { rowCount = 0; passcodeRow = rowCount++; changePasscodeRow = rowCount++; passcodeDetailRow = rowCount++; if (UserConfig.passcodeHash.length() > 0) { try { if (Build.VERSION.SDK_INT >= 23) { FingerprintManagerCompat fingerprintManager = FingerprintManagerCompat .from(ApplicationLoader.applicationContext); if (fingerprintManager.isHardwareDetected()) { fingerprintRow = rowCount++; } } } catch (Throwable e) { FileLog.e("tmessages", e); } autoLockRow = rowCount++; autoLockDetailRow = rowCount++; } else { fingerprintRow = -1; autoLockRow = -1; autoLockDetailRow = -1; } } @Override public void onConfigurationChanged(android.content.res.Configuration newConfig) { super.onConfigurationChanged(newConfig); if (listView != null) { ViewTreeObserver obs = listView.getViewTreeObserver(); obs.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { @Override public boolean onPreDraw() { listView.getViewTreeObserver().removeOnPreDrawListener(this); fixLayoutInternal(); return true; } }); } } @Override public void onTransitionAnimationEnd(boolean isOpen, boolean backward) { if (isOpen && type != 0) { AndroidUtilities.showKeyboard(passwordEditText); } } private void updateDropDownTextView() { if (dropDown != null) { if (currentPasswordType == 0) { dropDown.setText(LocaleController.getString("PasscodePIN", R.string.PasscodePIN)); } else if (currentPasswordType == 1) { dropDown.setText(LocaleController.getString("PasscodePassword", R.string.PasscodePassword)); } } if (type == 1 && currentPasswordType == 0 || type == 2 && UserConfig.passcodeType == 0) { InputFilter[] filterArray = new InputFilter[1]; filterArray[0] = new InputFilter.LengthFilter(4); passwordEditText.setFilters(filterArray); passwordEditText.setInputType(InputType.TYPE_CLASS_PHONE); passwordEditText.setKeyListener(DigitsKeyListener.getInstance("1234567890")); } else if (type == 1 && currentPasswordType == 1 || type == 2 && UserConfig.passcodeType == 1) { passwordEditText.setFilters(new InputFilter[0]); passwordEditText.setKeyListener(null); passwordEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD); } passwordEditText.setTransformationMethod(PasswordTransformationMethod.getInstance()); } private void processNext() { if (passwordEditText.getText().length() == 0 || currentPasswordType == 0 && passwordEditText.getText().length() != 4) { onPasscodeError(); return; } if (currentPasswordType == 0) { actionBar.setTitle(LocaleController.getString("PasscodePIN", R.string.PasscodePIN)); } else { actionBar.setTitle(LocaleController.getString("PasscodePassword", R.string.PasscodePassword)); } dropDownContainer.setVisibility(View.GONE); titleTextView.setText(LocaleController.getString("ReEnterYourPasscode", R.string.ReEnterYourPasscode)); firstPassword = passwordEditText.getText().toString(); passwordEditText.setText(""); passcodeSetStep = 1; } private void processDone() { if (passwordEditText.getText().length() == 0) { onPasscodeError(); return; } if (type == 1) { if (!firstPassword.equals(passwordEditText.getText().toString())) { try { Toast.makeText(getParentActivity(), LocaleController.getString("PasscodeDoNotMatch", R.string.PasscodeDoNotMatch), Toast.LENGTH_SHORT).show(); } catch (Exception e) { FileLog.e("tmessages", e); } AndroidUtilities.shakeView(titleTextView, 2, 0); passwordEditText.setText(""); return; } try { UserConfig.passcodeSalt = new byte[16]; Utilities.random.nextBytes(UserConfig.passcodeSalt); byte[] passcodeBytes = firstPassword.getBytes("UTF-8"); byte[] bytes = new byte[32 + passcodeBytes.length]; System.arraycopy(UserConfig.passcodeSalt, 0, bytes, 0, 16); System.arraycopy(passcodeBytes, 0, bytes, 16, passcodeBytes.length); System.arraycopy(UserConfig.passcodeSalt, 0, bytes, passcodeBytes.length + 16, 16); UserConfig.passcodeHash = Utilities.bytesToHex(Utilities.computeSHA256(bytes, 0, bytes.length)); } catch (Exception e) { FileLog.e("tmessages", e); } UserConfig.passcodeType = currentPasswordType; UserConfig.saveConfig(false); finishFragment(); NotificationCenter.getInstance().postNotificationName(NotificationCenter.didSetPasscode); passwordEditText.clearFocus(); AndroidUtilities.hideKeyboard(passwordEditText); } else if (type == 2) { if (!UserConfig.checkPasscode(passwordEditText.getText().toString())) { passwordEditText.setText(""); onPasscodeError(); return; } passwordEditText.clearFocus(); AndroidUtilities.hideKeyboard(passwordEditText); presentFragment(new PasscodeActivity(0), true); } } private void onPasscodeError() { if (getParentActivity() == null) { return; } Vibrator v = (Vibrator) getParentActivity().getSystemService(Context.VIBRATOR_SERVICE); if (v != null) { v.vibrate(200); } AndroidUtilities.shakeView(titleTextView, 2, 0); } private void fixLayoutInternal() { if (dropDownContainer != null) { if (!AndroidUtilities.isTablet()) { FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) dropDownContainer .getLayoutParams(); layoutParams.topMargin = (Build.VERSION.SDK_INT >= 21 ? AndroidUtilities.statusBarHeight : 0); dropDownContainer.setLayoutParams(layoutParams); } if (!AndroidUtilities.isTablet() && ApplicationLoader.applicationContext.getResources() .getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) { dropDown.setTextSize(18); } else { dropDown.setTextSize(20); } } } private class ListAdapter extends BaseFragmentAdapter { private Context mContext; public ListAdapter(Context context) { mContext = context; } @Override public boolean areAllItemsEnabled() { return false; } @Override public boolean isEnabled(int i) { return i == passcodeRow || i == fingerprintRow || i == autoLockRow || UserConfig.passcodeHash.length() != 0 && i == changePasscodeRow; } @Override public int getCount() { return rowCount; } @Override public Object getItem(int i) { return null; } @Override public long getItemId(int i) { return i; } @Override public boolean hasStableIds() { return false; } @Override public View getView(int i, View view, ViewGroup viewGroup) { int viewType = getItemViewType(i); if (viewType == 0) { if (view == null) { view = new TextCheckCell(mContext); view.setBackgroundColor(0xffffffff); } TextCheckCell textCell = (TextCheckCell) view; if (i == passcodeRow) { textCell.setTextAndCheck(LocaleController.getString("Passcode", R.string.Passcode), UserConfig.passcodeHash.length() > 0, true); } else if (i == fingerprintRow) { textCell.setTextAndCheck( LocaleController.getString("UnlockFingerprint", R.string.UnlockFingerprint), UserConfig.useFingerprint, true); } } else if (viewType == 1) { if (view == null) { view = new TextSettingsCell(mContext); view.setBackgroundColor(0xffffffff); } TextSettingsCell textCell = (TextSettingsCell) view; if (i == changePasscodeRow) { textCell.setText(LocaleController.getString("ChangePasscode", R.string.ChangePasscode), false); textCell.setTextColor(UserConfig.passcodeHash.length() == 0 ? 0xffc6c6c6 : 0xff000000); } else if (i == autoLockRow) { String val; if (UserConfig.autoLockIn == 0) { val = LocaleController.formatString("AutoLockDisabled", R.string.AutoLockDisabled); } else if (UserConfig.autoLockIn < 60 * 60) { val = LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Minutes", UserConfig.autoLockIn / 60)); } else if (UserConfig.autoLockIn < 60 * 60 * 24) { val = LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Hours", (int) Math.ceil(UserConfig.autoLockIn / 60.0f / 60))); } else { val = LocaleController.formatString("AutoLockInTime", R.string.AutoLockInTime, LocaleController.formatPluralString("Days", (int) Math.ceil(UserConfig.autoLockIn / 60.0f / 60 / 24))); } textCell.setTextAndValue(LocaleController.getString("AutoLock", R.string.AutoLock), val, true); textCell.setTextColor(0xff000000); } } else if (viewType == 2) { if (view == null) { view = new TextInfoPrivacyCell(mContext); } if (i == passcodeDetailRow) { ((TextInfoPrivacyCell) view) .setText(LocaleController.getString("ChangePasscodeInfo", R.string.ChangePasscodeInfo)); if (autoLockDetailRow != -1) { view.setBackgroundResource(R.drawable.greydivider); } else { view.setBackgroundResource(R.drawable.greydivider_bottom); } } else if (i == autoLockDetailRow) { ((TextInfoPrivacyCell) view) .setText(LocaleController.getString("AutoLockInfo", R.string.AutoLockInfo)); view.setBackgroundResource(R.drawable.greydivider_bottom); } } return view; } @Override public int getItemViewType(int i) { if (i == passcodeRow || i == fingerprintRow) { return 0; } else if (i == changePasscodeRow || i == autoLockRow) { return 1; } else if (i == passcodeDetailRow || i == autoLockDetailRow) { return 2; } return 0; } @Override public int getViewTypeCount() { return 3; } @Override public boolean isEmpty() { return false; } } }