Android实现实现IM多人员组合的群组头像多人员组合的群组头像
主要为大家详细介绍了Android实现IM多人员组合的群组头像,具有一定的参考价值,感兴趣的小伙伴们可以参
考一下
说明:
此头像类似微信群组头像,整个头像由组内前N位人员的头像组合而成,可用网络或本地图片进行组合,最终显示为一个头像
整体,看效果图:
一、自定义整体头像的ViewGroup,计算并保存宽高(重写onMeasure):
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
mWidth = getWidth(widthMeasureSpec);
mHeight = getHeight(heightMeasureSpec);
setMeasuredDimension(mWidth, mHeight);
}
private int getWidth(int measureSpec) {
int width = MIN_WIDTH_AND_HEIGHT;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == MeasureSpec.EXACTLY) {
width = specSize;
} else if (specMode == MeasureSpec.AT_MOST) {
width = Math.min(MIN_WIDTH_AND_HEIGHT, specSize);
}
return width;
}
private int getHeight(int measureSpec) {
int height = MIN_WIDTH_AND_HEIGHT;
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == MeasureSpec.EXACTLY) {
height = specSize;
} else if (specMode == MeasureSpec.AT_MOST) {
height = Math.min(MIN_WIDTH_AND_HEIGHT, specSize);
}
return height;
}
二、布局子头像的View(重写onLayout,对每个子头像进行布局):
@Override