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/LoadingButton/src/main/java/com/snad/loadingbutton/LoadingButton.java:
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1 | package com.snad.loadingbutton;
2 |
3 | import android.content.Context;
4 | import android.content.res.TypedArray;
5 | import android.graphics.PorterDuff;
6 | import android.graphics.Typeface;
7 | import android.support.annotation.ColorRes;
8 | import android.support.annotation.NonNull;
9 | import android.util.AttributeSet;
10 | import android.util.TypedValue;
11 | import android.view.Gravity;
12 | import android.view.LayoutInflater;
13 | import android.view.View;
14 | import android.view.animation.Animation;
15 | import android.view.animation.AnimationUtils;
16 | import android.widget.ProgressBar;
17 | import android.widget.RelativeLayout;
18 | import android.widget.TextSwitcher;
19 | import android.widget.TextView;
20 | import android.widget.ViewSwitcher;
21 |
22 | public class LoadingButton extends RelativeLayout {
23 |
24 | //region Variables
25 | static final int DEFAULT_COLOR = android.R.color.white;
26 | public static final int IN_FROM_RIGHT = 0;
27 | public static final int IN_FROM_LEFT = 1;
28 |
29 | private int mDefaultTextSize;
30 | private ProgressBar mProgressBar;
31 | private TextSwitcher mTextSwitcher;
32 | private String mLoadingMessage;
33 | private String mButtonText;
34 | private float mTextSize;
35 | private int mTextColor;
36 | private boolean mIsLoadingShowing;
37 | private Typeface mTypeface;
38 | private Animation inRight;
39 | private Animation inLeft;
40 | private int mCurrentInDirection;
41 | private boolean mTextSwitcherReady;
42 | //endregion
43 |
44 | //region Constructors
45 | public LoadingButton(Context context) {
46 | super(context);
47 | init(context, null);
48 | }
49 |
50 | public LoadingButton(Context context, AttributeSet attrs) {
51 | super(context, attrs);
52 | init(context, attrs);
53 | }
54 |
55 | public LoadingButton(Context context, AttributeSet attrs, int defStyleAttr) {
56 | super(context, attrs, defStyleAttr);
57 | init(context, attrs);
58 | }
59 | //endregion
60 |
61 | public float getTextSize() {
62 | return mTextSize;
63 | }
64 |
65 | public Typeface getTypeface() {
66 | return mTypeface;
67 | }
68 |
69 | public void setProgressColor(int colorRes) {
70 | mProgressBar.getIndeterminateDrawable()
71 | .mutate()
72 | .setColorFilter(colorRes, PorterDuff.Mode.SRC_ATOP);
73 | }
74 |
75 | public void setTypeface(@NonNull Typeface typeface) {
76 | this.mTypeface = typeface;
77 | }
78 |
79 | public void setAnimationInDirection(int inDirection) {
80 | mCurrentInDirection = inDirection;
81 | }
82 |
83 | public void setText(String text) {
84 | if (text != null) {
85 | mButtonText = text;
86 | if (mTextSwitcherReady) {
87 | mTextSwitcher.setInAnimation(mCurrentInDirection == IN_FROM_LEFT ? inLeft : inRight);
88 | mTextSwitcher.setText(mButtonText);
89 | }
90 | }
91 | }
92 |
93 | public void setLoadingText(String text) {
94 | if (text != null) {
95 | mLoadingMessage = text;
96 | }
97 | }
98 |
99 | public void setTextFactory(@NonNull ViewSwitcherFactory factory) {
100 | mTextSwitcher.removeAllViewsInLayout();
101 | mTextSwitcher.setFactory(factory);
102 | mTextSwitcher.setText(mButtonText);
103 | }
104 |
105 | public void showLoading() {
106 | if (!mIsLoadingShowing) {
107 | mProgressBar.setVisibility(View.VISIBLE);
108 | mTextSwitcher.setText(mLoadingMessage);
109 | mIsLoadingShowing = true;
110 | setEnabled(false);
111 | }
112 | }
113 |
114 | public void showButtonText() {
115 | if (mIsLoadingShowing) {
116 | mProgressBar.setVisibility(View.INVISIBLE);
117 | mTextSwitcher.setText(mButtonText);
118 | mIsLoadingShowing = false;
119 | setEnabled(true);
120 | }
121 | }
122 |
123 | public boolean isLoadingShowing() {
124 | return mIsLoadingShowing;
125 | }
126 |
127 | private void init(Context context, AttributeSet attrs) {
128 | mDefaultTextSize = getResources().getDimensionPixelSize(R.dimen.text_default_size);
129 | mIsLoadingShowing = false;
130 | LayoutInflater.from(getContext()).inflate(R.layout.view_loading_button, this, true);
131 |
132 | mProgressBar = (ProgressBar) findViewById(R.id.pb_progress);
133 | mTextSwitcher = (TextSwitcher) findViewById(R.id.pb_text);
134 |
135 |
136 | if (attrs != null) {
137 | TypedArray a = context.getTheme().obtainStyledAttributes(
138 | attrs,
139 | R.styleable.LoadingButton,
140 | 0, 0);
141 | try {
142 | float textSize = a.getDimensionPixelSize(R.styleable.LoadingButton_pbTextSize, mDefaultTextSize);
143 | setTextSize(textSize);
144 |
145 | String text = a.getString(R.styleable.LoadingButton_pbText);
146 | setText(text);
147 |
148 | mLoadingMessage = a.getString(R.styleable.LoadingButton_pbLoadingText);
149 |
150 | if (mLoadingMessage == null) {
151 | mLoadingMessage = getContext().getString(R.string.default_loading);
152 | }
153 |
154 | int progressColor = a.getColor(R.styleable.LoadingButton_pbProgressColor, DEFAULT_COLOR);
155 | setProgressColor(progressColor);
156 |
157 | int textColor = a.getColor(R.styleable.LoadingButton_pbTextColor, DEFAULT_COLOR);
158 | setTextColor(textColor);
159 |
160 | } finally {
161 | a.recycle();
162 | }
163 | } else {
164 | int white = getResources().getColor(DEFAULT_COLOR);
165 | mLoadingMessage = getContext().getString(R.string.default_loading);
166 | setProgressColor(white);
167 | setTextColor(white);
168 | setTextSize(mDefaultTextSize);
169 | }
170 | setupTextSwitcher();
171 | }
172 |
173 | private void setupTextSwitcher() {
174 | ViewSwitcherFactory factory = new ViewSwitcherFactory(getContext(), mTextColor, mTextSize, mTypeface);
175 | mTextSwitcher.setFactory(factory);
176 |
177 | inRight = AnimationUtils.loadAnimation(getContext(), R.anim.slide_in_right);
178 | inLeft = AnimationUtils.loadAnimation(getContext(), R.anim.slide_in_left);
179 | Animation out = AnimationUtils.loadAnimation(getContext(), R.anim.fade_out);
180 | mTextSwitcher.setOutAnimation(out);
181 | mTextSwitcher.setInAnimation(inRight);
182 |
183 | mTextSwitcher.setText(mButtonText);
184 | mTextSwitcherReady = true;
185 | }
186 |
187 | private void setTextSize(float size) {
188 | mTextSize = size;
189 | }
190 |
191 | private void setTextColor(int textColor) {
192 | this.mTextColor = textColor;
193 | }
194 |
195 | public static class ViewSwitcherFactory implements ViewSwitcher.ViewFactory {
196 |
197 | //region Variables
198 | private final int textColor;
199 | private final float textSize;
200 | private final Typeface typeFace;
201 | private final Context context;
202 | //endregion
203 |
204 | //region Constructor
205 | public ViewSwitcherFactory(Context context, int textColor, float textSize, Typeface typeface) {
206 | this.context = context;
207 | this.textColor = textColor;
208 | this.textSize = textSize;
209 | this.typeFace = typeface;
210 | }
211 | //endregion
212 |
213 | @Override
214 | public View makeView() {
215 | TextView tv = new TextView(context);
216 | tv.setTextColor(textColor);
217 | tv.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
218 | tv.setGravity(Gravity.CENTER);
219 | tv.setTypeface(typeFace);
220 |
221 | return tv;
222 | }
223 | }
224 | }
--------------------------------------------------------------------------------
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