mirror of https://github.com/NekoX-Dev/NekoX.git
99 lines
3.3 KiB
Java
99 lines
3.3 KiB
Java
/*
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* This is the source code of Telegram for Android v. 2.0.x.
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* It is licensed under GNU GPL v. 2 or later.
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* You should have received a copy of the license in this archive (see LICENSE).
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*
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* Copyright Nikolai Kudashov, 2013-2014.
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*/
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package org.telegram.ui.Components;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.view.View;
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import android.view.animation.DecelerateInterpolator;
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import org.telegram.android.AndroidUtilities;
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public class LineProgressView extends View {
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private long lastUpdateTime = 0;
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private float currentProgress = 0;
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private float animationProgressStart = 0;
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private long currentProgressTime = 0;
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private float animatedProgressValue = 0;
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private float animatedAlphaValue = 1.0f;
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private static DecelerateInterpolator decelerateInterpolator = null;
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private static Paint progressPaint = null;
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public LineProgressView(Context context) {
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super(context);
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if (decelerateInterpolator == null) {
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decelerateInterpolator = new DecelerateInterpolator();
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progressPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
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progressPaint.setStyle(Paint.Style.STROKE);
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progressPaint.setStrokeCap(Paint.Cap.ROUND);
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progressPaint.setStrokeWidth(AndroidUtilities.dp(2));
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progressPaint.setColor(0xff36a2ee);
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}
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}
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private void updateAnimation() {
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long newTime = System.currentTimeMillis();
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long dt = newTime - lastUpdateTime;
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lastUpdateTime = newTime;
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if (animatedProgressValue != 1 && animatedProgressValue != currentProgress) {
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float progressDiff = currentProgress - animationProgressStart;
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if (progressDiff > 0) {
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currentProgressTime += dt;
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if (currentProgressTime >= 300) {
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animatedProgressValue = currentProgress;
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animationProgressStart = currentProgress;
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currentProgressTime = 0;
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} else {
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animatedProgressValue = animationProgressStart + progressDiff * decelerateInterpolator.getInterpolation(currentProgressTime / 300.0f);
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}
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}
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invalidate();
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}
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if (animatedProgressValue >= 1 && animatedProgressValue == 1 && animatedAlphaValue != 0) {
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animatedAlphaValue -= dt / 200.0f;
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if (animatedAlphaValue <= 0) {
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animatedAlphaValue = 0.0f;
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}
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invalidate();
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}
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}
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public void setProgressColor(int color) {
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progressPaint.setColor(color);
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}
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public void setProgress(float value, boolean animated) {
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if (!animated) {
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animatedProgressValue = value;
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animationProgressStart = value;
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} else {
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animationProgressStart = animatedProgressValue;
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}
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if (value != 1) {
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animatedAlphaValue = 1;
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}
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currentProgress = value;
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currentProgressTime = 0;
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lastUpdateTime = System.currentTimeMillis();
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invalidate();
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}
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public void onDraw(Canvas canvas) {
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progressPaint.setAlpha((int)(255 * animatedAlphaValue));
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canvas.drawRect(0, 0, getWidth() * animatedProgressValue, getHeight(), progressPaint);
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updateAnimation();
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}
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}
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