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, 2013-2016. */ package org.telegram.ui.Cells; import android.animation.Animator; import android.animation.AnimatorSet; import android.animation.ObjectAnimator; import android.content.Context; import android.graphics.Canvas; import android.graphics.ColorFilter; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.RectF; import android.graphics.drawable.Drawable; import android.os.Build; import android.support.v4.content.ContextCompat; import android.text.TextUtils; import android.util.TypedValue; import android.view.Gravity; import android.view.MotionEvent; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.TextView; import org.telegram.messenger.AndroidUtilities; import org.telegram.messenger.AnimatorListenerAdapterProxy; import org.telegram.messenger.LocaleController; import org.telegram.messenger.R; import org.telegram.messenger.query.StickersQuery; import org.telegram.tgnet.TLRPC; import org.telegram.ui.Components.BackupImageView; import org.telegram.ui.Components.ForegroundFrameLayout; import org.telegram.ui.Components.LayoutHelper; import org.telegram.ui.Components.Switch; public class FeaturedStickerSetCell extends ForegroundFrameLayout { private TextView textView; private TextView valueTextView; private BackupImageView imageView; private TextView addButton; private ImageView checkImage; private boolean needDivider; private Switch checkBox; private TLRPC.StickerSetCovered stickersSet; private Rect rect = new Rect(); private AnimatorSet currentAnimation; private boolean wasLayout; private boolean isInstalled; private boolean drawProgress; private float progressAlpha; private RectF progressRect = new RectF(); private long lastUpdateTime; private static Paint botProgressPaint; private int angle; private static Paint paint; public FeaturedStickerSetCell(Context context) { super(context); setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); setElevation(AndroidUtilities.dp(2)); if (paint == null) { paint = new Paint(); paint.setColor(ContextCompat.getColor(context, R.color.divider)); } if (botProgressPaint == null) { botProgressPaint = new Paint(Paint.ANTI_ALIAS_FLAG); botProgressPaint.setColor(ContextCompat.getColor(context, R.color.primary_text_inverse)); botProgressPaint.setStrokeCap(Paint.Cap.ROUND); botProgressPaint.setStyle(Paint.Style.STROKE); } botProgressPaint.setStrokeWidth(AndroidUtilities.dp(2)); textView = new TextView(context); textView.setTextColor(ContextCompat.getColor(context, R.color.primary_text)); textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16); textView.setLines(1); textView.setMaxLines(1); textView.setSingleLine(true); textView.setEllipsize(TextUtils.TruncateAt.END); textView.setGravity(LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT); addView(textView, LayoutHelper.createFrame(LayoutHelper.WRAP_CONTENT, LayoutHelper.WRAP_CONTENT, LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT, LocaleController.isRTL ? 100 : 71, 10, LocaleController.isRTL ? 71 : 100, 0)); valueTextView = new TextView(context); //valueTextView.setTextColor(0xff8a8a8a); valueTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 13); valueTextView.setLines(1); valueTextView.setMaxLines(1); valueTextView.setSingleLine(true); valueTextView.setEllipsize(TextUtils.TruncateAt.END); valueTextView.setGravity(LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT); addView(valueTextView, LayoutHelper.createFrame(LayoutHelper.WRAP_CONTENT, LayoutHelper.WRAP_CONTENT, LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT, LocaleController.isRTL ? 100 : 71, 35, LocaleController.isRTL ? 71 : 100, 0)); imageView = new BackupImageView(context); imageView.setAspectFit(true); addView(imageView, LayoutHelper.createFrame(48, 48, (LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT) | Gravity.TOP, LocaleController.isRTL ? 0 : 12, 8, LocaleController.isRTL ? 12 : 0, 0)); addButton = new TextView(context) { @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (drawProgress || !drawProgress && progressAlpha != 0) { botProgressPaint.setAlpha(Math.min(255, (int) (progressAlpha * 255))); int x = getMeasuredWidth() - AndroidUtilities.dp(11); progressRect.set(x, AndroidUtilities.dp(3), x + AndroidUtilities.dp(8), AndroidUtilities.dp(8 + 3)); canvas.drawArc(progressRect, angle, 220, false, botProgressPaint); invalidate((int) progressRect.left - AndroidUtilities.dp(2), (int) progressRect.top - AndroidUtilities.dp(2), (int) progressRect.right + AndroidUtilities.dp(2), (int) progressRect.bottom + AndroidUtilities.dp(2)); long newTime = System.currentTimeMillis(); if (Math.abs(lastUpdateTime - System.currentTimeMillis()) < 1000) { long delta = (newTime - lastUpdateTime); float dt = 360 * delta / 2000.0f; angle += dt; angle -= 360 * (angle / 360); if (drawProgress) { if (progressAlpha < 1.0f) { progressAlpha += delta / 200.0f; if (progressAlpha > 1.0f) { progressAlpha = 1.0f; } } } else { if (progressAlpha > 0.0f) { progressAlpha -= delta / 200.0f; if (progressAlpha < 0.0f) { progressAlpha = 0.0f; } } } } lastUpdateTime = newTime; invalidate(); } } }; addButton.setPadding(AndroidUtilities.dp(17), 0, AndroidUtilities.dp(17), 0); addButton.setGravity(Gravity.CENTER); // TODO addButton.setTextColor(0xffffffff); addButton.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 14); addButton.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf")); addButton.setBackgroundResource(R.drawable.add_states); addButton.setText(LocaleController.getString("Add", R.string.Add).toUpperCase()); addView(addButton, LayoutHelper.createFrame(LayoutHelper.WRAP_CONTENT, 28, Gravity.TOP | (LocaleController.isRTL ? Gravity.LEFT : Gravity.RIGHT), LocaleController.isRTL ? 14 : 0, 18, LocaleController.isRTL ? 0 : 14, 0)); checkImage = new ImageView(context); checkImage.setImageResource(R.drawable.sticker_added); addView(checkImage, LayoutHelper.createFrame(19, 14)); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.EXACTLY), MeasureSpec.makeMeasureSpec(AndroidUtilities.dp(64) + (needDivider ? 1 : 0), MeasureSpec.EXACTLY)); } @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); int l = addButton.getLeft() + addButton.getMeasuredWidth() / 2 - checkImage.getMeasuredWidth() / 2; int t = addButton.getTop() + addButton.getMeasuredHeight() / 2 - checkImage.getMeasuredHeight() / 2; checkImage.layout(l, t, l + checkImage.getMeasuredWidth(), t + checkImage.getMeasuredHeight()); wasLayout = true; } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); wasLayout = false; } public void setStickersSet(TLRPC.StickerSetCovered set, boolean divider, boolean unread) { boolean sameSet = set == stickersSet && wasLayout; needDivider = divider; stickersSet = set; lastUpdateTime = System.currentTimeMillis(); setWillNotDraw(!needDivider); if (currentAnimation != null) { currentAnimation.cancel(); currentAnimation = null; } textView.setText(stickersSet.set.title); if (unread) { Drawable drawable = new Drawable() { Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); @Override public void draw(Canvas canvas) { paint.setColor(0xff44a8ea); canvas.drawCircle(AndroidUtilities.dp(4), AndroidUtilities.dp(5), AndroidUtilities.dp(3), paint); } @Override public void setAlpha(int alpha) { } @Override public void setColorFilter(ColorFilter colorFilter) { } @Override public int getOpacity() { return 0; } @Override public int getIntrinsicWidth() { return AndroidUtilities.dp(12); } @Override public int getIntrinsicHeight() { return AndroidUtilities.dp(8); } }; textView.setCompoundDrawablesWithIntrinsicBounds(LocaleController.isRTL ? null : drawable, null, LocaleController.isRTL ? drawable : null, null); } else { textView.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0); } valueTextView.setText(LocaleController.formatPluralString("Stickers", set.set.count)); if (set.cover != null && set.cover.thumb != null && set.cover.thumb.location != null) { imageView.setImage(set.cover.thumb.location, null, "webp", null); } else if (!set.covers.isEmpty()) { imageView.setImage(set.covers.get(0).thumb.location, null, "webp", null); } if (sameSet) { boolean wasInstalled = isInstalled; if (isInstalled = StickersQuery.isStickerPackInstalled(set.set.id)) { if (!wasInstalled) { checkImage.setVisibility(VISIBLE); addButton.setClickable(false); currentAnimation = new AnimatorSet(); currentAnimation.setDuration(200); currentAnimation.playTogether(ObjectAnimator.ofFloat(addButton, "alpha", 1.0f, 0.0f), ObjectAnimator.ofFloat(addButton, "scaleX", 1.0f, 0.01f), ObjectAnimator.ofFloat(addButton, "scaleY", 1.0f, 0.01f), ObjectAnimator.ofFloat(checkImage, "alpha", 0.0f, 1.0f), ObjectAnimator.ofFloat(checkImage, "scaleX", 0.01f, 1.0f), ObjectAnimator.ofFloat(checkImage, "scaleY", 0.01f, 1.0f)); currentAnimation.addListener(new AnimatorListenerAdapterProxy() { @Override public void onAnimationEnd(Animator animator) { if (currentAnimation != null && currentAnimation.equals(animator)) { addButton.setVisibility(INVISIBLE); } } @Override public void onAnimationCancel(Animator animator) { if (currentAnimation != null && currentAnimation.equals(animator)) { currentAnimation = null; } } }); currentAnimation.start(); } } else { if (wasInstalled) { addButton.setVisibility(VISIBLE); addButton.setClickable(true); currentAnimation = new AnimatorSet(); currentAnimation.setDuration(200); currentAnimation.playTogether(ObjectAnimator.ofFloat(checkImage, "alpha", 1.0f, 0.0f), ObjectAnimator.ofFloat(checkImage, "scaleX", 1.0f, 0.01f), ObjectAnimator.ofFloat(checkImage, "scaleY", 1.0f, 0.01f), ObjectAnimator.ofFloat(addButton, "alpha", 0.0f, 1.0f), ObjectAnimator.ofFloat(addButton, "scaleX", 0.01f, 1.0f), ObjectAnimator.ofFloat(addButton, "scaleY", 0.01f, 1.0f)); currentAnimation.addListener(new AnimatorListenerAdapterProxy() { @Override public void onAnimationEnd(Animator animator) { if (currentAnimation != null && currentAnimation.equals(animator)) { checkImage.setVisibility(INVISIBLE); } } @Override public void onAnimationCancel(Animator animator) { if (currentAnimation != null && currentAnimation.equals(animator)) { currentAnimation = null; } } }); currentAnimation.start(); } } } else { if (isInstalled = StickersQuery.isStickerPackInstalled(set.set.id)) { addButton.setVisibility(INVISIBLE); addButton.setClickable(false); checkImage.setVisibility(VISIBLE); checkImage.setScaleX(1.0f); checkImage.setScaleY(1.0f); checkImage.setAlpha(1.0f); } else { addButton.setVisibility(VISIBLE); addButton.setClickable(true); checkImage.setVisibility(INVISIBLE); addButton.setScaleX(1.0f); addButton.setScaleY(1.0f); addButton.setAlpha(1.0f); } } } public TLRPC.StickerSetCovered getStickerSet() { return stickersSet; } public void setAddOnClickListener(OnClickListener onClickListener) { addButton.setOnClickListener(onClickListener); } public void setDrawProgress(boolean value) { drawProgress = value; lastUpdateTime = System.currentTimeMillis(); addButton.invalidate(); } public boolean isInstalled() { return isInstalled; } @Override public boolean onTouchEvent(MotionEvent event) { if (Build.VERSION.SDK_INT >= 21 && getBackground() != null) { if (event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE) { getBackground().setHotspot(event.getX(), event.getY()); } } return super.onTouchEvent(event); } @Override protected void onDraw(Canvas canvas) { if (needDivider) { canvas.drawLine(0, getHeight() - 1, getWidth() - getPaddingRight(), getHeight() - 1, paint); } } public static void resetDivider() { paint = null; botProgressPaint = null; } }