Android10 Launcher3调整文件夹图标的默认布局

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Android10 Launcher3调整文件夹图标的默认布局

2024-01-12 08:02| 来源: 网络整理| 查看: 265

从android O开始，主界面的默认图标就是圆形的，所以文件夹图标默认显示的4个应用其实是按照圆弧排列的，之前有看到文章描述做成9宫格就可以很明显地看出来；

公司需求是默认用正方形布局，不管2个还是3个、4个应用都是用正方形布局排列

默认的布局会裁剪掉一部分，图标显示太大不美观,所以先调整下图标比例，下面记录下定制的重点

1、原生的版本是会根据文件夹内部应用数量调整缩放比例的，我们不需要这个，所以固定缩放比例

/* * Copyright (C) 2017 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 com.android.launcher3.folder; import android.graphics.drawable.Drawable; /** * Manages the parameters used to draw a Folder preview item. */ class PreviewItemDrawingParams { float transX; float transY; float scale; float overlayAlpha; FolderPreviewItemAnim anim; public boolean hidden; Drawable drawable; //文件夹内部应用图标缩略图的缩放比例 private final float DEFAULT_SCALE = 0.42f; PreviewItemDrawingParams(float transX, float transY, float scale, float overlayAlpha) { this.transX = transX; this.transY = transY; this.scale = DEFAULT_SCALE;//scale; this.overlayAlpha = overlayAlpha; } public void update(float transX, float transY, float scale) { // We ensure the update will not interfere with an animation on the layout params // If the final values differ, we cancel the animation. if (anim != null) { if (anim.finalState[1] == transX || anim.finalState[2] == transY || anim.finalState[0] == scale) { return; } anim.cancel(); } this.transX = transX; this.transY = transY; this.scale = DEFAULT_SCALE;//scale; } } 。。。 com.android.launcher3.icons.IconNormalizer.java private static final float MAX_SQUARE_AREA_FACTOR = 475.0f / 576; //375.0f / 576; private static final float MAX_CIRCLE_AREA_FACTOR = 480.0f / 576; //380.0f / 576;

2、固定用4个应用的布局

com.android.launcher3.folder.ClippedFolderIconLayoutRule.java

private static final float MAX_RADIUS_DILATION = 0.01f;//0.15f; private static final float ITEM_RADIUS_SCALE_FACTOR = 1.22f;//1.33f; ... private void getPosition(int index, int curNumItems, float[] result) { / //modify by hwj20210904默认用4个应用的布局 curNumItems = Math.max(curNumItems, 4/*2*/); ...... result[0] = mAvailableSpace / 2 + (float) (radius * Math.cos(theta) / 2) - halfIconSize + 5/*矫正居中参数*/; result[1] = mAvailableSpace / 2 + (float) (- radius * Math.sin(theta) / 2) - halfIconSize + 5; }

3、调整文件夹的圆角

res里面的xml有个ford_shapes.xml的文件定义

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Android10 Launcher3调整文件夹图标的默认布局

Android10 Launcher3调整文件夹图标的默认布局

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