本文实例为大家分享了Android实现朋友圈多图显示的具体代码，供大家参考，具体内容如下

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Android实现朋友圈多图显示功能

正文

先看一下效果图：

MultiImageView：

public class MultiImageView extends LinearLayout { public static int MAX_WIDTH = 0; // 照片的Url列表 private List<String> imagesList; /** * 长度 单位为Pixel * */ private int pxOneMaxWandH; // 单张图最大允许宽高 private int pxMoreWandH = 0;// 多张图的宽高 private int pxImagePadding = LvDPUtil.dip2px(3);// 图片间的间距 private int MAX_PER_ROW_COUNT = 3;// 每行显示最大数 private LayoutParams onePicPara; private LayoutParams morePara, moreParaColumnFirst; private LayoutParams rowPara; private OnItemClickListener mOnItemClickListener; public void setOnItemClickListener(OnItemClickListener onItemClickListener) { mOnItemClickListener = onItemClickListener; } public MultiImageView(Context context) { super(context); } public MultiImageView(Context context, AttributeSet attrs) { super(context, attrs); } public void setList(List<String> lists) throws IllegalArgumentException { if (lists == null) { throw new IllegalArgumentException("imageList is null..."); } imagesList = lists; if (MAX_WIDTH > 0) { // 如果需要两张和四张图横向铺满，这里去掉注释即可。// if (lists.size() == 2 || lists.size() == 4) {// pxMoreWandH = (MAX_WIDTH - pxImagePadding) / 2;// } else { pxMoreWandH = (MAX_WIDTH - pxImagePadding * 2) / 3; //解决右侧图片和内容对不齐问题// } pxOneMaxWandH = MAX_WIDTH * 2 / 3; // 一张图的时候，图片宽度 initImageLayoutParams(); } initView(); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { if (MAX_WIDTH == 0) { int width = measureWidth(widthMeasureSpec); if (width > 0) { MAX_WIDTH = width - getPaddingLeft() - getPaddingRight(); if (imagesList != null && imagesList.size() > 0) { setList(imagesList); } } } super.onMeasure(widthMeasureSpec, heightMeasureSpec); } /** * Determines the width of this view * * @param measureSpec A measureSpec packed into an int * @return The width of the view, honoring constraints from measureSpec */ private int measureWidth(int measureSpec) { int result = 0; int specMode = MeasureSpec.getMode(measureSpec); int specSize = MeasureSpec.getSize(measureSpec); if (specMode == MeasureSpec.EXACTLY) { // We were told how big to be result = specSize; } else { // Measure the text // result = (int) mTextPaint.measureText(mText) + getPaddingLeft() // + getPaddingRight(); if (specMode == MeasureSpec.AT_MOST) { // Respect AT_MOST value if that was what is called for by // measureSpec result = Math.min(result, specSize); } } return result; } private void initImageLayoutParams() { int wrap = LayoutParams.WRAP_CONTENT; int match = LayoutParams.MATCH_PARENT; onePicPara = new LayoutParams(pxOneMaxWandH, wrap); moreParaColumnFirst = new LayoutParams(pxMoreWandH, pxMoreWandH); morePara = new LayoutParams(pxMoreWandH, pxMoreWandH); morePara.setMargins(pxImagePadding, 0, 0, 0); rowPara = new LayoutParams(match, wrap); } // 根据imageView的数量初始化不同的View布局,还要为每一个View作点击效果 private void initView() { this.setOrientation(VERTICAL); this.removeAllViews(); if (MAX_WIDTH == 0) { //为了触发onMeasure()来测量MultiImageView的最大宽度，MultiImageView的宽设置为match_parent addView(new View(getContext())); return; } if (imagesList == null || imagesList.size() == 0) { return; } if (imagesList.size() == 1) { addView(createImageView(0, false)); } else { int allCount = imagesList.size(); if (allCount == 4) { MAX_PER_ROW_COUNT = 2; } else { MAX_PER_ROW_COUNT = 3; } int rowCount = allCount / MAX_PER_ROW_COUNT + (allCount % MAX_PER_ROW_COUNT > 0 ? 1 : 0);// 行数 for (int rowCursor = 0; rowCursor < rowCount; rowCursor++) { LinearLayout rowLayout = new LinearLayout(getContext()); rowLayout.setOrientation(LinearLayout.HORIZONTAL); rowLayout.setLayoutParams(rowPara); if (rowCursor != 0) { rowLayout.setPadding(0, pxImagePadding, 0, 0); } int columnCount = allCount % MAX_PER_ROW_COUNT == 0 ? MAX_PER_ROW_COUNT : allCount % MAX_PER_ROW_COUNT;//每行的列数 if (rowCursor != rowCount - 1) { columnCount = MAX_PER_ROW_COUNT; } addView(rowLayout); int rowOffset = rowCursor * MAX_PER_ROW_COUNT;// 行偏移 for (int columnCursor = 0; columnCursor < columnCount; columnCursor++) { int position = columnCursor + rowOffset; rowLayout.addView(createImageView(position, true)); } } } } private ImageView createImageView(final int position, final boolean isMultiImage) { String url = ""; if (!TextUtils.isEmpty(imagesList.get(position))) { url = imagesList.get(position); } ImageView imageView = new ColorFilterImageView(getContext()); if (isMultiImage) { imageView.setScaleType(ScaleType.CENTER_CROP); imageView.setLayoutParams(position % MAX_PER_ROW_COUNT == 0 ? moreParaColumnFirst : morePara); } else { imageView.setAdjustViewBounds(true); imageView.setScaleType(ScaleType.FIT_START); imageView.setMaxHeight(pxOneMaxWandH); imageView.setLayoutParams(onePicPara); } imageView.setId(url.hashCode()); imageView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (mOnItemClickListener != null) { mOnItemClickListener.onItemClick(v, position); } } }); // 加载网络图片/设置图片显示 Glide.with(getContext()).load(url).into(imageView); return imageView; } public interface OnItemClickListener { void onItemClick(View view, int position); }}

点击有阴影的 ImageView :

public class ColorFilterImageView extends ImageView implements OnTouchListener { public ColorFilterImageView(Context context) { this(context, null, 0); } public ColorFilterImageView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public ColorFilterImageView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(); } private void init() { setOnTouchListener(this); } @Override public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: // 按下时图像变灰 setColorFilter(Color.GRAY, Mode.MULTIPLY); break; case MotionEvent.ACTION_UP: // 手指离开或取消操作时恢复原色 case MotionEvent.ACTION_CANCEL: setColorFilter(Color.TRANSPARENT); break; default: break; } return false; }}

用法

<com.lvfq.myworkingtest.dynamic.view.MultiImageView android:id="@+id/multi_image" android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="@dimen/dp_10" />MultiImageView multiImageView = findViewById(R.id.multi_image);multiImageView.setList(imgs); // List<String> 类型的图片地址列表multiImage.setOnItemClickListener(new MultiImageView.OnItemClickListener() { @Override public void onItemClick(View view, int position) { // To do something or 查看大图. } });

代码已整理到Github

附：如果需要完整朋友圈项目的话，这里推荐一个 Github 项目仿微信实现的朋友圈

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。