Java tutorial
/* * LockProgress.java * * Copyright (c) 2016 Auth0 (http://auth0.com) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.auth0.android.lock.views; import android.content.Context; import android.content.res.ColorStateList; import android.graphics.drawable.ColorDrawable; import android.graphics.drawable.Drawable; import android.graphics.drawable.RippleDrawable; import android.graphics.drawable.StateListDrawable; import android.support.annotation.StringRes; import android.support.v4.content.ContextCompat; import android.util.Log; import android.view.View; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ProgressBar; import android.widget.TextView; import com.auth0.android.lock.R; import com.auth0.android.lock.internal.configuration.Theme; public class ActionButton extends FrameLayout { private static final String TAG = ActionButton.class.getSimpleName(); private ProgressBar progress; private ImageView icon; private LinearLayout labeledLayout; private TextView title; private boolean shouldShowLabel; public ActionButton(Context context, Theme lockTheme) { super(context); init(lockTheme); } private void init(Theme lockTheme) { inflate(getContext(), R.layout.com_auth0_lock_action_button, this); progress = (ProgressBar) findViewById(R.id.com_auth0_lock_progress); progress.setVisibility(View.GONE); icon = (ImageView) findViewById(R.id.com_auth0_lock_icon); labeledLayout = (LinearLayout) findViewById(R.id.com_auth0_lock_labeled); title = (TextView) findViewById(R.id.com_auth0_lock_title); ViewUtils.setBackground(icon, generateStateBackground(lockTheme)); ViewUtils.setBackground(labeledLayout, generateStateBackground(lockTheme)); showLabel(false); } private Drawable generateStateBackground(Theme lockTheme) { int normalColor = lockTheme.getPrimaryColor(getContext()); int pressedColor = lockTheme.getDarkPrimaryColor(getContext()); int disabledColor = ContextCompat.getColor(getContext(), R.color.com_auth0_lock_submit_disabled); if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) { return new RippleDrawable(ColorStateList.valueOf(pressedColor), new ColorDrawable(normalColor), null); } else { StateListDrawable states = new StateListDrawable(); states.addState(new int[] { android.R.attr.state_enabled, android.R.attr.state_pressed }, new ColorDrawable(pressedColor)); states.addState(new int[] { android.R.attr.state_enabled }, new ColorDrawable(normalColor)); states.addState(new int[] {}, new ColorDrawable(disabledColor)); return states; } } /** * Used to display a progress bar and disable the button. * * @param show whether to show the progress bar or not. */ public void showProgress(boolean show) { Log.v(TAG, show ? "Disabling the button while showing progress" : "Enabling the button and hiding progress"); setEnabled(!show); progress.setVisibility(show ? VISIBLE : GONE); if (show) { icon.setVisibility(INVISIBLE); labeledLayout.setVisibility(INVISIBLE); return; } icon.setVisibility(shouldShowLabel ? GONE : VISIBLE); labeledLayout.setVisibility(!shouldShowLabel ? GONE : VISIBLE); } /** * Label to display in the button. * * @param stringRes the new resource to display as the button label. */ public void setLabel(@StringRes int stringRes) { title.setText(stringRes); } /** * Whether to show an icon or a label with the current selected mode. * By default, it will show the icon. * * @param showLabel whether to show an icon or a label. */ public void showLabel(boolean showLabel) { shouldShowLabel = showLabel; labeledLayout.setVisibility(showLabel ? VISIBLE : GONE); icon.setVisibility(!showLabel ? VISIBLE : GONE); } }