Android 入门项目（八）Android 流式筛选弹框，android 应用程序开发的流程

/**

• Created by zhangyan 2021/01/29

*/

public class FlowPopRecyclerViewAdapter extends RecyclerView.Adapter<FlowPopRecyclerViewAdapter.FlowPopViewHolder> {

private Context mContext;

private List<FiltrateBean> mData;

public FlowPopRecyclerViewAdapter(Context context) {

mData = new ArrayList<>();

this.mContext = context;

}

@NonNull

@Override

public FlowPopViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

FlowPopViewHolder viewHolder = new FlowPopViewHolder(LayoutInflater.from(mContext).inflate(R.layout.item_listview_property, viewGroup, false));

return viewHolder;

}

@Override

public void onBindViewHolder(@NonNull FlowPopRecyclerViewAdapter.FlowPopViewHolder viewHolder, int i) {

FlowPopViewHolder vh = (FlowPopViewHolder) viewHolder;

FiltrateBean item = mData.get(i);

vh.tvTypeName.setText(item.getTypeName());

setFlowLayoutData(item.getChildren(), vh.layoutProperty);

}

@Override

public int getItemCount() {

return mData == null ? 0 : mData.size();

}

public static class FlowPopViewHolder extends RecyclerView.ViewHolder {

private TextView tvTypeName;

private SkuFlowLayout layoutProperty;

public FlowPopViewHolder(@NonNull View itemView) {

super(itemView);

tvTypeName = itemView.findViewById(R.id.tv_type_name);

layoutProperty = itemView.findViewById(R.id.layout_property);

}

}

private void setFlowLayoutData(final List<FiltrateBean.Children> childrenList, final SkuFlowLayout flowLayout) {

flowLayout.removeAllViews();

for (int x = 0; x < childrenList.size(); x++) {

CheckBox checkBox = (CheckBox) View.inflate(mContext, R.layout.item_flowlayout_bill, null);

checkBox.setText(childrenList.get(x).getValue());

if (childrenList.get(x).isSelected()) {

checkBox.setChecked(true);

childrenList.get(x).setSelected(true);

} else {

checkBox.setChecked(false);

childrenList.get(x).setSelected(false);

}

final int finalX = x;

checkBox.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

refreshCheckBox(flowL

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ayout, finalX, childrenList);

}

});

flowLayout.addView(checkBox);

}

}

private void refreshCheckBox(SkuFlowLayout flowLayout, int finalX, List<FiltrateBean.Children> propBeenList) {

for (int y = 0; y < flowLayout.getChildCount(); y++) {

CheckBox radio = (CheckBox) flowLayout.getChildAt(y);

radio.setChecked(false);

propBeenList.get(y).setSelected(false);

if (finalX == y) {

radio.setChecked(true);

propBeenList.get(y).setSelected(true);

}

}

}

/**

• 设置数据

• @param data

*/

public void setData(List<FiltrateBean> data){

mData.clear();

mData.addAll(data);

notifyDataSetChanged();

}

/**

• 清空数据

*/

public void clearData(){

mData.clear();

notifyDataSetChanged();

}

}

流式布局的测量

@Override

protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

int sizeWidth = MeasureSpec.getSize(widthMeasureSpec);

int modeWidth = MeasureSpec.getMode(widthMeasureSpec);

int sizeHeight = MeasureSpec.getSize(heightMeasureSpec);

int modeHeight = MeasureSpec.getMode(heightMeasureSpec);

int width = 0;

int height = 0;

int lineWidth = 0;