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Merge pull request #27 from brookmg/master
Add corner radius to the bottom bar
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237 changes: 237 additions & 0 deletions
237
lib/src/main/java/me/ibrahimsn/lib/RoundRectDrawable.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,237 @@ | ||
| /* | ||
| * Copyright 2020 Brook Mezgebu | ||
| * Copyright 2018 The Android Open Source Project | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package me.ibrahimsn.lib | ||
|
|
||
| import android.content.res.ColorStateList | ||
| import android.graphics.* | ||
| import android.graphics.drawable.Drawable | ||
| import androidx.annotation.RequiresApi | ||
| import me.ibrahimsn.lib.Constants.COS_45 | ||
| import me.ibrahimsn.lib.Constants.SHADOW_MULTIPLIER | ||
| import kotlin.math.ceil | ||
|
|
||
| /** | ||
| * Very simple drawable that draws a rounded rectangle background with arbitrary corners and also | ||
| * reports proper outline for Lollipop. | ||
| * | ||
| * | ||
| * Simpler and uses less resources compared to GradientDrawable or ShapeDrawable. | ||
| */ | ||
| @RequiresApi(21) | ||
| class RoundRectDrawable( backgroundColor: ColorStateList?, private var mRadius: Float, | ||
| private val topLeft: Boolean = false, | ||
| private val topRight: Boolean = false, | ||
| private val bottomLeft: Boolean = false, | ||
| private val bottomRight: Boolean = false | ||
| ) : Drawable() { | ||
|
|
||
| private val mPaint: Paint = Paint(Paint.ANTI_ALIAS_FLAG or Paint.DITHER_FLAG) | ||
| private val mBoundsF: RectF | ||
| private val mBoundsI: Rect | ||
|
|
||
| var padding = 0f | ||
| private set | ||
|
|
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| private var mInsetForPadding = false | ||
| private var mInsetForRadius = true | ||
| private var mBackground: ColorStateList? = null | ||
| private var mTintFilter: PorterDuffColorFilter? = null | ||
| private var mTint: ColorStateList? = null | ||
| private var mTintMode: PorterDuff.Mode? = PorterDuff.Mode.SRC_IN | ||
|
|
||
| private fun setBackground(color: ColorStateList?) { | ||
| mBackground = color ?: ColorStateList.valueOf(Color.TRANSPARENT) | ||
| mPaint.color = mBackground?.getColorForState(state, mBackground?.defaultColor ?: Color.TRANSPARENT) ?: Color.TRANSPARENT | ||
| } | ||
|
|
||
| fun setPadding( padding: Float, insetForPadding: Boolean, insetForRadius: Boolean) { | ||
| if (padding == this.padding && mInsetForPadding == insetForPadding && mInsetForRadius == insetForRadius) { | ||
| return | ||
| } | ||
|
|
||
| this.padding = padding | ||
| mInsetForPadding = insetForPadding | ||
| mInsetForRadius = insetForRadius | ||
| updateBounds(null) | ||
| invalidateSelf() | ||
| } | ||
|
|
||
| override fun draw(canvas: Canvas) { | ||
| val paint = mPaint | ||
| val clearColorFilter: Boolean | ||
| if (mTintFilter != null && paint.colorFilter == null) { | ||
| paint.colorFilter = mTintFilter | ||
| clearColorFilter = true | ||
| } else clearColorFilter = false | ||
|
|
||
| canvas.drawPath( | ||
| Util.roundedRect(mBoundsF, mRadius, mRadius, topLeft, topRight, bottomRight, bottomLeft), | ||
| paint | ||
| ); | ||
|
|
||
| if (clearColorFilter) { | ||
| paint.colorFilter = null | ||
| } | ||
| } | ||
|
|
||
| private fun calculateVerticalPadding(maxShadowSize: Float, cornerRadius: Float, addPaddingForCorners: Boolean): Float { | ||
| return if (addPaddingForCorners) { | ||
| (maxShadowSize * SHADOW_MULTIPLIER + (1 - COS_45) * cornerRadius).toFloat() | ||
| } else { | ||
| maxShadowSize * SHADOW_MULTIPLIER | ||
| } | ||
| } | ||
|
|
||
| private fun calculateHorizontalPadding( | ||
| maxShadowSize: Float, cornerRadius: Float, | ||
| addPaddingForCorners: Boolean | ||
| ): Float { | ||
| return if (addPaddingForCorners) { | ||
| (maxShadowSize + (1 - COS_45) * cornerRadius).toFloat() | ||
| } else { | ||
| maxShadowSize | ||
| } | ||
| } | ||
|
|
||
| private fun updateBounds(bounds: Rect?) { | ||
| var bounds = bounds | ||
|
|
||
| if (bounds == null) bounds = getBounds() | ||
|
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| mBoundsF[bounds!!.left.toFloat(), bounds.top.toFloat(), bounds.right.toFloat()] = bounds.bottom.toFloat() | ||
| mBoundsI.set(bounds) | ||
|
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| if (mInsetForPadding) { | ||
| val vInset: Float = calculateVerticalPadding( | ||
| padding, | ||
| mRadius, | ||
| mInsetForRadius | ||
| ) | ||
|
|
||
| val hInset: Float = calculateHorizontalPadding( | ||
| padding, | ||
| mRadius, | ||
| mInsetForRadius | ||
| ) | ||
|
|
||
| mBoundsI.inset( | ||
| ceil(hInset.toDouble()).toInt(), | ||
| ceil(vInset.toDouble()).toInt() | ||
| ) | ||
|
|
||
| // to make sure they have same bounds. | ||
| mBoundsF.set(mBoundsI) | ||
| } | ||
| } | ||
|
|
||
| override fun onBoundsChange(bounds: Rect) { | ||
| super.onBoundsChange(bounds) | ||
| updateBounds(bounds) | ||
| } | ||
|
|
||
| override fun getOutline(outline: Outline) { | ||
| outline.setConvexPath( | ||
| Util.roundedRect(mBoundsF, | ||
| mRadius, mRadius, | ||
| tl = topLeft, tr = topRight, br = bottomRight, bl = bottomLeft | ||
| ) | ||
| ) | ||
| } | ||
|
|
||
| override fun setAlpha(alpha: Int) { | ||
| mPaint.alpha = alpha | ||
| } | ||
|
|
||
| override fun setColorFilter(cf: ColorFilter) { | ||
| mPaint.colorFilter = cf | ||
| } | ||
|
|
||
| override fun getOpacity(): Int { | ||
| return PixelFormat.TRANSLUCENT | ||
| } | ||
|
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| var radius: Float | ||
| get() = mRadius | ||
| set(radius) { | ||
| if (radius == mRadius) { | ||
| return | ||
| } | ||
| mRadius = radius | ||
| updateBounds(null) | ||
| invalidateSelf() | ||
| } | ||
|
|
||
| var color: ColorStateList? | ||
| get() = mBackground | ||
| set(color) { | ||
| setBackground(color) | ||
| invalidateSelf() | ||
| } | ||
|
|
||
| override fun setTintList(tint: ColorStateList) { | ||
| mTint = tint | ||
| mTintFilter = createTintFilter(mTint, mTintMode) | ||
| invalidateSelf() | ||
| } | ||
|
|
||
| override fun setTintMode(tintMode: PorterDuff.Mode) { | ||
| mTintMode = tintMode | ||
| mTintFilter = createTintFilter(mTint, mTintMode) | ||
| invalidateSelf() | ||
| } | ||
|
|
||
| override fun onStateChange(stateSet: IntArray): Boolean { | ||
| val newColor = | ||
| mBackground!!.getColorForState(stateSet, mBackground!!.defaultColor) | ||
| val colorChanged = newColor != mPaint.color | ||
| if (colorChanged) { | ||
| mPaint.color = newColor | ||
| } | ||
| if (mTint != null && mTintMode != null) { | ||
| mTintFilter = createTintFilter(mTint, mTintMode) | ||
| return true | ||
| } | ||
| return colorChanged | ||
| } | ||
|
|
||
| override fun isStateful(): Boolean { | ||
| return (mTint != null && mTint!!.isStateful | ||
| || mBackground != null && mBackground!!.isStateful || super.isStateful()) | ||
| } | ||
|
|
||
| /** | ||
| * Ensures the tint filter is consistent with the current tint color and | ||
| * mode. | ||
| */ | ||
| private fun createTintFilter( | ||
| tint: ColorStateList?, | ||
| tintMode: PorterDuff.Mode? | ||
| ): PorterDuffColorFilter? { | ||
| if (tint == null || tintMode == null) { | ||
| return null | ||
| } | ||
| val color = tint.getColorForState(state, Color.TRANSPARENT) | ||
| return PorterDuffColorFilter(color, tintMode) | ||
| } | ||
|
|
||
| init { | ||
| setBackground(backgroundColor) | ||
| mBoundsF = RectF() | ||
| mBoundsI = Rect() | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| package me.ibrahimsn.lib | ||
|
|
||
| import android.graphics.Path | ||
| import android.graphics.Rect | ||
| import android.graphics.RectF | ||
| import android.os.Build | ||
| import androidx.annotation.RequiresApi | ||
|
|
||
| /** | ||
| * Created by BrookMG on 3/29/2020 in me.ibrahimsn.lib | ||
| inside the project SmoothBottomBar . | ||
| */ | ||
| class Util { | ||
|
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| companion object { | ||
|
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| @RequiresApi(Build.VERSION_CODES.LOLLIPOP) | ||
| fun roundedRect( | ||
| rect: RectF, | ||
| rx: Float, ry: Float, | ||
| tl: Boolean, tr: Boolean, br: Boolean, bl: Boolean | ||
| ): Path { | ||
| val path = Path(); | ||
| val corners: FloatArray = floatArrayOf( | ||
| (if (tl) rx else 0f), (if (tl) ry else 0f), | ||
| (if (tr) rx else 0f), (if (tr) ry else 0f), | ||
| (if (br) rx else 0f), (if (br) ry else 0f), | ||
| (if (bl) rx else 0f), (if (bl) ry else 0f) | ||
| ); | ||
|
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| path.addRoundRect(rect, corners, Path.Direction.CW) | ||
| return path | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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