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Android 第三方RoundedImageView设置各种圆形、方形头像

Android 自定义CoolImageView实现QQ首页背景图片动画效果




一.第三方RoundedImageView

1.在Android Studio中,可进入模块设置中添加库依赖。 进入Module结构设置添加库依赖 ,输入RoundedImageView然后搜索添加

2.在Moudle的build.gradle中添加如下代码,添加完之后在Build中进行下Make Module操作(编译下Module),使自己添加的依赖生效

repositories {

mavenCentral()

}

dependencies {

compile 'com.makeramen:roundedimageview:2.2.1'

}

3.添加相关属性:

控件属性: 

riv_border_width: 边框宽度

riv_border_color: 边框颜色

riv_oval: 是否圆形

riv_corner_radius: 圆角弧度

riv_corner_radius_top_left:左上角弧度

riv_corner_radius_top_right: 右上角弧度

riv_corner_radius_bottom_left:左下角弧度

riv_corner_radius_bottom_right:右下角弧度

4.示例布局:

 <com.makeramen.roundedimageview.RoundedImageView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@mipmap/avatar"

app:riv_border_color="#333333"

app:riv_border_width="2dp"

app:riv_oval="true" />

<com.makeramen.roundedimageview.RoundedImageView

xmlns:app="http://schemas.android.com/apk/res-auto"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:scaleType="fitCenter"

android:src="@mipmap/avatar"

app:riv_border_color="#333333"

app:riv_border_width="2dp"

app:riv_corner_radius="10dp"

app:riv_mutate_background="true"

app:riv_oval="false"

app:riv_tile_mode="repeat" />

<com.makeramen.roundedimageview.RoundedImageView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:scaleType="fitCenter"

android:src="@mipmap/avatar"

app:riv_border_color="#333333"

app:riv_border_width="2dp"

app:riv_corner_radius_top_left="25dp"

app:riv_corner_radius_bottom_right="25dp"

app:riv_mutate_background="true"

app:riv_oval="false"

app:riv_tile_mode="repeat" />

<com.makeramen.roundedimageview.RoundedImageView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:scaleType="fitCenter"

android:src="@mipmap/avatar"

app:riv_border_color="#333333"

app:riv_border_width="2dp"

app:riv_corner_radius_top_right="25dp"

app:riv_corner_radius_bottom_left="25dp"

app:riv_mutate_background="true"

app:riv_oval="false"

app:riv_tile_mode="repeat" />

<com.makeramen.roundedimageview.RoundedImageView

android:layout_width="96dp"

android:layout_height="72dp"

android:scaleType="center"

android:src="@mipmap/avatar"

app:riv_border_color="#333333"

app:riv_border_width="2dp"

app:riv_corner_radius="25dp"

app:riv_mutate_background="true"

app:riv_oval="true"

app:riv_tile_mode="repeat" />

 <com.makeramen.roundedimageview.RoundedImageView

android:id="@+id/imCompanyHeadItem"

android:layout_width="50dp"

android:layout_marginTop="10dp"

android:layout_marginRight="6.5dp"

android:layout_marginLeft="6.5dp"

android:src="@drawable/head_home"

android:layout_gravity="center"

android:layout_height="50dp"

app:riv_border_color="@color/_c7ced8"

app:riv_border_width="1dp"

app:riv_corner_radius_top_left="5dp"

app:riv_corner_radius_bottom_right="5dp"

app:riv_corner_radius_bottom_left="5dp"

app:riv_corner_radius_top_right="5dp"

app:riv_mutate_background="true"

app:riv_oval="false"

app:riv_tile_mode="repeat"/>

二.自定义RoundImageView

1.布局:

 <com.iruiyou.pet.utils.RoundImageView

android:id="@+id/headIv"

android:layout_width="125dp"

android:layout_height="125dp"

android:layout_marginTop="92dp"

android:src="@drawable/head_home"

loonggg:border_incolor="#000fff"

loonggg:border_outcolor="#fff000"

loonggg:border_width="10dp"

app:layout_constraintLeft_toLeftOf="parent"

app:layout_constraintRight_toRightOf="parent"

app:layout_constraintTop_toTopOf="parent"/>

2.自定义类:

import android.content.Context;

import android.content.res.TypedArray;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.PorterDuff;

import android.graphics.PorterDuffXfermode;

import android.graphics.Rect;

import android.graphics.drawable.BitmapDrawable;

import android.graphics.drawable.Drawable;

import android.graphics.drawable.NinePatchDrawable;

import android.util.AttributeSet;

import android.widget.ImageView;

import com.iruiyou.pet.R;



/**

*


* @author sgf


* 自定义圆形头像


*


*/


public class RoundImageView extends ImageView {

private int mBorderThickness = 0;

private Context mContext;

private int defaultColor = 0xFFFFFFFF;

// 外圆边框颜色

private int mBorderOutsideColor = 0;

// 内圆边框颜色

private int mBorderInsideColor = 0;

// RoundImageView控件默认的长、宽

private int defaultWidth = 0;

private int defaultHeight = 0;



public RoundImageView(Context context) {

super(context);

mContext = context;

}



public RoundImageView(Context context, AttributeSet attrs) {

super(context, attrs);

mContext = context;

// 设置RoundImageView的属性值,比如颜色,宽度等

setRoundImageViewAttributes(attrs);

}



public RoundImageView(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

mContext = context;

setRoundImageViewAttributes(attrs);

}



// 从attr.xml文件中获取属性值,并给RoundImageView设置

private void setRoundImageViewAttributes(AttributeSet attrs) {

TypedArray a = mContext.obtainStyledAttributes(attrs,

R.styleable.round_image_view);

mBorderThickness = a.getDimensionPixelSize(

R.styleable.round_image_view_border_width, 0);

mBorderOutsideColor = a.getColor(

R.styleable.round_image_view_border_outcolor, defaultColor);

mBorderInsideColor = a.getColor(

R.styleable.round_image_view_border_incolor, defaultColor);

a.recycle();

}



// 具体解释:比如我自定义一个控件,怎么实现呢,以RoundImageView为例,首先是继承ImageView,然后实现其构造函数,在构造函数中,获取attr中的属性值(再次解释:这里获取的具体的这个属性的值是怎么来的呢?比如颜色和宽度,这个在attr.xml中定义了相关的名字,而在使用RoundImageView的xml布局文件中,我们会设置其值,这里需要用的值,就是从那里设置的),并设置在本控件中,然后继承onDraw方法,画出自己想要的图形或者形状即可

/**

* 这个是继承的父类的onDraw方法


*


* onDraw和下面的方法不用管,基本和学习自定义没关系,就是实现怎么画圆的,你可以改变下面代码试着画三角形头像,哈哈


*/


@Override

protected void onDraw(Canvas canvas) {

Drawable drawable = getDrawable();

if (drawable == null) {

return;

}

if (getWidth() == 0 || getHeight() == 0) {

return;

}

this.measure(0, 0);

if (drawable.getClass() == NinePatchDrawable.class)

return;

Bitmap b = ((BitmapDrawable) drawable).getBitmap();

Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);

if (defaultWidth == 0) {

defaultWidth = getWidth();

}

if (defaultHeight == 0) {

defaultHeight = getHeight();

}

int radius = 0;

// 这里的判断是如果内圆和外圆设置的颜色值不为空且不是默认颜色,就定义画两个圆框,分别为内圆和外圆边框

if (mBorderInsideColor != defaultColor

&& mBorderOutsideColor != defaultColor) {

radius = (defaultWidth < defaultHeight ? defaultWidth

: defaultHeight) / 2 - 2 * mBorderThickness;

// 画内圆

drawCircleBorder(canvas, radius + mBorderThickness / 2,

mBorderInsideColor);

// 画外圆

drawCircleBorder(canvas, radius + mBorderThickness

+ mBorderThickness / 2, mBorderOutsideColor);

} else if (mBorderInsideColor != defaultColor

&& mBorderOutsideColor == defaultColor) {// 这里的是如果内圆边框不为空且颜色值不是默认值,就画一个内圆的边框

radius = (defaultWidth < defaultHeight ? defaultWidth

: defaultHeight) / 2 - mBorderThickness;

drawCircleBorder(canvas, radius + mBorderThickness / 2,

mBorderInsideColor);

} else if (mBorderInsideColor == defaultColor

&& mBorderOutsideColor != defaultColor) {// 这里的是如果外圆边框不为空且颜色值不是默认值,就画一个外圆的边框

radius = (defaultWidth < defaultHeight ? defaultWidth

: defaultHeight) / 2 - mBorderThickness;

drawCircleBorder(canvas, radius + mBorderThickness / 2,

mBorderOutsideColor);

} else {// 这种情况是没有设置属性颜色的情况下,即没有边框的情况

radius = (defaultWidth < defaultHeight ? defaultWidth

: defaultHeight) / 2;

}

Bitmap roundBitmap = getCroppedRoundBitmap(bitmap, radius);

canvas.drawBitmap(roundBitmap, defaultWidth / 2 - radius, defaultHeight

/ 2 - radius, null);

}



/**

* 获取裁剪后的圆形图片


*


* @param bmp


* @param radius


* 半径


* @return


*/


public Bitmap getCroppedRoundBitmap(Bitmap bmp, int radius) {

Bitmap scaledSrcBmp;

int diameter = radius * 2;

// 为了防止宽高不相等,造成圆形图片变形,因此截取长方形中处于中间位置最大的正方形图片

int bmpWidth = bmp.getWidth();

int bmpHeight = bmp.getHeight();

int squareWidth = 0, squareHeight = 0;

int x = 0, y = 0;

Bitmap squareBitmap;

if (bmpHeight > bmpWidth) {// 高大于宽

squareWidth = squareHeight = bmpWidth;

x = 0;

y = (bmpHeight - bmpWidth) / 2;

// 截取正方形图片

squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth,

squareHeight);

} else if (bmpHeight < bmpWidth) {// 宽大于高

squareWidth = squareHeight = bmpHeight;

x = (bmpWidth - bmpHeight) / 2;

y = 0;

squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth,

squareHeight);

} else {

squareBitmap = bmp;

}

if (squareBitmap.getWidth() != diameter

|| squareBitmap.getHeight() != diameter) {

scaledSrcBmp = Bitmap.createScaledBitmap(squareBitmap, diameter,

diameter, true);

} else {

scaledSrcBmp = squareBitmap;

}

Bitmap output = Bitmap.createBitmap(scaledSrcBmp.getWidth(),

scaledSrcBmp.getHeight(), Bitmap.Config.ARGB_8888);

Canvas canvas = new Canvas(output);



Paint paint = new Paint();

Rect rect = new Rect(0, 0, scaledSrcBmp.getWidth(),

scaledSrcBmp.getHeight());



paint.setAntiAlias(true);

paint.setFilterBitmap(true);

paint.setDither(true);

canvas.drawARGB(0, 0, 0, 0);

canvas.drawCircle(scaledSrcBmp.getWidth() / 2,

scaledSrcBmp.getHeight() / 2, scaledSrcBmp.getWidth() / 2,

paint);

paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));

canvas.drawBitmap(scaledSrcBmp, rect, rect, paint);

bmp = null;

squareBitmap = null;

scaledSrcBmp = null;

return output;

}



/**

* 画边缘的圆,即内圆或者外圆


*/


private void drawCircleBorder(Canvas canvas, int radius, int color) {

Paint paint = new Paint();

/* 去锯齿 */

paint.setAntiAlias(true);

paint.setFilterBitmap(true);

paint.setDither(true);

paint.setColor(color);

/* 设置paint的 style 为STROKE:空心 */

paint.setStyle(Paint.Style.STROKE);

/* 设置paint的外框宽度 */

paint.setStrokeWidth(mBorderThickness);

canvas.drawCircle(defaultWidth / 2, defaultHeight / 2, radius, paint);

}

}

3.res--values--attrs.xml文件


<?xml version="1.0" encoding="utf-8"?>

<resources>



<declare-styleable name="round_image_view">

<attr name="border_width" format="dimension" />

<attr name="border_incolor" format="color" />

<attr name="border_outcolor" format="color"></attr>

</declare-styleable>



</resources>

三.第三方NiceImageView

1.效果图如下:



 2.特点:

基于AppCompatImageView扩展

支持圆角、圆形显示

可绘制边框,圆形时可绘制内外两层边框

支持边框不覆盖图片

可绘制遮罩

3.基本用法:

 1. 添加JitPack仓库 在项目根目录下的 build.gradle 中添加仓库:

allprojects {

repositories {

...

maven { url "https://jitpack.io" }

}

}

2. 添加项目依赖


dependencies {

implementation 'com.github.SheHuan:NiceImageView:1.0.5'

}

3. 在布局文件中添加CornerLabelView

<com.shehuan.niv.NiceImageView

android:layout_width="200dp"

android:layout_height="200dp"

android:layout_marginTop="10dp"

android:src="@drawable/cat"

app:border_color="#FF7F24"

app:border_width="4dp"

app:is_circle="true" />

4.支持的属性、方法

属性名含义默认值对应方法
is_circle是否显示为圆形(默认为矩形)falseisCircle()
corner_top_left_radius左上角圆角半径0dpsetCornerTopLeftRadius()
corner_top_right_radius右上角圆角半径0dpsetCornerTopRightRadius()
corner_bottom_left_radius左下角圆角半径0dpsetCornerBottomLeftRadius()
corner_bottom_right_radius右下角圆角半径0dpsetCornerBottomRightRadius()
corner_radius统一设置四个角的圆角半径0dpsetCornerRadius()
border_width边框宽度0dpsetBorderWidth()
border_color边框颜色#ffffffsetBorderColor()
inner_border_width相当于内层边框(is_circle为true时支持)0dpsetInnerBorderWidth()
inner_border_color内边框颜色#ffffffsetInnerBorderColor()
is_cover_srcborder、inner_border是否覆盖图片内容falseisCoverSrc()
mask_color图片上绘制的遮罩颜色不设置颜色则不绘制setMaskColor()

可参考:https://github.com/SheHuan/NiceImageView


 5.其它:


如果你需要实现类似钉钉的圆形组合头像,例如:



可以先生成对应的Bitmap,并用圆形的 NiceImageView 显示即可。如何生成组合Bitmap可以参考这里:CombineBitmap


四.如果你的项目中只有圆形的图片而不需要设置圆角图片的话,可以试试下面的第三方:


https://github.com/hdodenhof/CircleImageView

https://github.com/open-android/RoundedImageView


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