本文实例为大家分享了Android实现图片选择器功能的具体代码，供大家参考，具体内容如下
图片选择功能用的是GitHub上的依赖库，网址
先来看下我运行的效果图如下所示：
该依赖库是Android平台上拍照/录像，图片/视频选择，编辑和压缩的一站式解决方案。
添加依赖，在app->build.gradle里面添加依赖
//图片/视频选择、预览、编辑与拍照 implementation 'com.github.guoxiaoxing:phoenix:1.0.15'
初始化：
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
Phoenix.config()
.imageLoader(new ImageLoader() {
@Override
public void loadImage(Context mContext, ImageView imageView
, String imagePath, int type) {
Glide.with(mContext)
.load(imagePath)
.into(imageView);
}
});
}
}
开启功能：
private void callUpSelecter(boolean isCamera, int type, int REQUEST_CODE) {
if (TextUtils.isEmpty(fileID)) {
Phoenix.with()
.theme(PhoenixOption.THEME_RED)// 主题
.fileType(MimeType.ofImage())//显示的文件类型图片、视频、图片和视频
.maxPickNumber(9)// 最大选择数量
.minPickNumber(0)// 最小选择数量
.spanCount(4)// 每行显示个数
.enablePreview(true)// 是否开启预览
.enableCamera(isCamera)// 是否开启拍照
.enableAnimation(false)// 选择界面图片点击效果
.enableCompress(true)// 是否开启压缩
.compressPictureFilterSize(300)//多少kb以下的图片不压缩
.compressVideoFilterSize(2018)//多少kb以下的视频不压缩
.thumbnailHeight(160)// 选择界面图片高度
.thumbnailWidth(160)// 选择界面图片宽度
.enableClickSound(false)// 是否开启点击声音
.pickedMediaList(add_lists)// 已选图片数据
.videoFilterTime(0)//显示多少秒以内的视频
.mediaFilterSize(0)//显示多少kb以下的图片/视频，默认为0，表示不限制
.start(UploadMorePicActivity.this, type, REQUEST_CODE);
}
}
获取结果：
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 889 && resultCode == RESULT_OK) {//相册
//返回的数据
List result = Phoenix.result(data);
Log.e("=====result==", result.toString());
add_lists.clear();
add_lists.addAll(result);
adapter.updateItems(add_lists);
btnOkEnable(add_lists);
} else if (requestCode == 899 && resultCode == RESULT_OK) {//拍照
List result = Phoenix.result(data);
add_lists.addAll(result);
adapter.updateItems(add_lists);
btnOkEnable(add_lists);
}
}
recyclerView的适配基类：
public abstract class baseRecyclerAdapterextends RecyclerView.Adapter { public onRecyclerViewItemClickListener monItemClickListener = null; public onRecyclerViewItemClickListenerData listenerData; protected List mItems; protected Context mContext; public baseRecyclerAdapter(Context context) { this.mContext = context; mItems = new ArrayList<>(); } public List getList() { return mItems; } public void addItem(T item) { if (item == null) return; mItems.add(mItems.size(), item); notifyItemInserted(mItems.size()); } public void addItems(List items) { if (items == null) return; this.mItems.addAll(items); notifyDataSetChanged(); } public boolean containsAll(List items) { return mItems.containsAll(items); } public void updateItem(T tasks, int position) { if (tasks == null) return; mItems.set(position, tasks); notifyItemChanged(position); } public void updateItems(List items) { if (items == null) return; this.mItems.clear(); this.mItems.addAll(items); notifyDataSetChanged(); } public void removeItem(int index) { mItems.remove(index); notifyItemRemoved(index); notifyItemRangeChanged((index - 1) >= 0 ? index - 1 : 0, mItems.size()); } public void getView(int position, RecyclerView.ViewHolder viewHolder, int type, T item) { } public T getItem(int location) { if (mItems == null || mItems.isEmpty()) { return null; } else { return mItems.get(location); } } @Override public int getItemCount() { return mItems == null ? 0 : mItems.size(); } public void clear() { mItems.clear(); notifyDataSetChanged(); } public static interface onRecyclerViewItemClickListener { void onItemClick(View view, String data); } public void setonItemClickListener(onRecyclerViewItemClickListener listener) { this.monItemClickListener = listener; } public interface OnRecyclerViewItemClickListenerData { void onItemClickData(View view, T data); } public void setonItemClickListenerData(onRecyclerViewItemClickListenerData listener) { listenerData = listener; } }
显示选择的图片的适配器：
public class UpLoadMorePicAdapter extends baseRecyclerAdapter{ public UpLoadMorePicAdapter(Context context) { super(context); } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view= LayoutInflater.from(mContext).inflate(R.layout.item_upload_more_pic_refresh,parent,false); return new ViewHolder(view); } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) { if (holder instanceof ViewHolder){ final ViewHolder viewHolder= (ViewHolder) holder; if(mItems.size()<9&&position==mItems.size()){ Glide.with(mContext).load(R.mipmap.add_consumer).centerCrop().into(viewHolder.iv_pic); }else{ final MediaEntity mediaEntity=mItems.get(position); Glide.with(mContext).load(mediaEntity.getLocalPath()).centerCrop().into(viewHolder.iv_pic); } viewHolder.iv_pic.setonClickListener(new View.onClickListener() { @Override public void onClick(View v) { if (listenerData!=null){ listenerData.onItemClickData(viewHolder.iv_pic,position); } } }); } } @Override public int getItemCount() { return mItems.size()<9? mItems.size()+1:9; } class ViewHolder extends RecyclerView.ViewHolder{ private CustomHeightImageView iv_pic; public ViewHolder(View view) { super(view); iv_pic= (CustomHeightImageView) view.findViewById(R.id.iv_pic); } } }
适配器布局文件：
R.layout.item_upload_more_pic_refresh
Activity中的代码：
public class UploadMorePicActivity extends AppCompatActivity
{
private RecyclerView rl_pic;
private UpLoadMorePicAdapter adapter;
private List add_lists = new ArrayList<>();
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
rl_pic = (RecyclerView) findViewById(R.id.rl_pic);
adapter = new UpLoadMorePicAdapter(this);
rl_pic.setLayoutManager(new GridLayoutManager(this, 4));
rl_pic.setAdapter(adapter);
adapter.updateItems(add_lists);
adapter.setonItemClickListenerData(new baseRecyclerAdapter.onRecyclerViewItemClickListenerData() {
@Override
public void onItemClickData(View view, Object data) {
int position = (int) data;
if (position >= add_lists.size()) {
callUpSelecter(false, PhoenixOption.TYPE_PICK_MEDIA, 889);
} else {
}
}
});
}
private void callUpSelecter(boolean isCamera, int type, int REQUEST_CODE) {
if (TextUtils.isEmpty(fileID)) {
Phoenix.with()
.theme(PhoenixOption.THEME_RED)// 主题
.fileType(MimeType.ofImage())//显示的文件类型图片、视频、图片和视频
.maxPickNumber(9)// 最大选择数量
.minPickNumber(0)// 最小选择数量
.spanCount(4)// 每行显示个数
.enablePreview(true)// 是否开启预览
.enableCamera(isCamera)// 是否开启拍照
.enableAnimation(false)// 选择界面图片点击效果
.enableCompress(true)// 是否开启压缩
.compressPictureFilterSize(300)//多少kb以下的图片不压缩
.compressVideoFilterSize(2018)//多少kb以下的视频不压缩
.thumbnailHeight(160)// 选择界面图片高度
.thumbnailWidth(160)// 选择界面图片宽度
.enableClickSound(false)// 是否开启点击声音
.pickedMediaList(add_lists)// 已选图片数据
.videoFilterTime(0)//显示多少秒以内的视频
.mediaFilterSize(0)//显示多少kb以下的图片/视频，默认为0，表示不限制
.start(UploadMorePicActivity.this, type, REQUEST_CODE);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 889 && resultCode == RESULT_OK) {//相册
//返回的数据
List result = Phoenix.result(data);
Log.e("=====result==", result.toString());
add_lists.clear();
add_lists.addAll(result);
adapter.updateItems(add_lists);
btnOkEnable(add_lists);
}
}
自定义ImageView:
public class CustomHeightImageView extends android.support.v7.widget.AppCompatImageView {
float scale = 0;
public CustomHeightImageView(Context context) {
super(context);
}
public CustomHeightImageView(Context context, float scale) {
super(context);
this.scale = scale;
}
public CustomHeightImageView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CustomHeightRelativeLayout);
scale = a.getFloat(R.styleable.CustomHeightRelativeLayout_scale, -1f);
// float scale = a.
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (scale == -1) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
} else {
super.onMeasure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(
(int) (MeasureSpec.getSize(widthMeasureSpec) * (scale)),
MeasureSpec.getMode(widthMeasureSpec)));
}
}
}
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考高分网。
