Android弹窗控件CustomFiltControl Android可筛选的弹窗控件CustomFiltControl
我守一座空城丶 人气:0
效果：
起初踩的坑：
刚开始是因为项目中需要用到筛选的功能，以前也遇到过但都是其他同事做的，而我看他们的实现大多都是自己一个个的码布局，然后做事件处理很麻烦，还有的是通过网上的一些线性排列控件自己组合实现的。
如今自己遇到了我开始想的也是通过LinearLayout动态去添加选项，title部分就是也是动态添加，一个打的LinearLayout包两个小的，然后在小的里面又包很多选项，但是遇到要换行的时候又需要添加一个LinearLayout，也就是但是有个问题，布局繁琐，得不到很好的复用。
后面突然想到了GridLayout，然后又使用了LinearLayout+GridLayout，对GridLayout是可以避免在你换行的时候去计算，只要你设置好行列，它会自动换行，这是确实实现了上面的效果，但是博主写好了又发现不够完美，既然GridLayout能自动换行，又可以一个站多行多列，为什么不把title也放到GridLayout中呢，有了这个想法，又来修改，在计算行列的时候确实遇到了阻碍，不过终究是完成了，最后封装在了popuwindow中直接调用。
看看主要实现吧：
package com.zzq.mack.customfiltcontrol;
import android.content.Context;
import android.graphics.Color;
import android.support.v7.widget.GridLayout;
import android.text.TextUtils;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import android.widget.TextView;
import android.widget.Toast;
import com.zzq.mack.customfiltcontrol.model.FiltModel;
import java.util.List;
/**
* Author:xqt
* Email:zzq1573@gmail.com
* Date:2018/3/31 0031 11:24
* Description:筛选弹框 版权所有转载请注明出处
*/
public class FiltPopuWindow extends PopupWindow{
public FiltPopuWindow(Context context,View view){
//这里可以修改popupwindow的宽高
super(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
setContentView(view);
initViews();
}
private void initViews() {
setAnimationStyle(R.style.popwin_anim_style);
//setBackgroundDrawable(new ColorDrawable(0x00000000));
setFocusable(true);
setOutsideTouchable(true);
}
public static class Builder {
private Context context;
private List<FiltModel> listData;
private int columnCount;
private GridLayout rootGridLayout;
private LinearLayout contextll;
//背景颜色
private int colorBg = Color.parseColor("#F8F8F8");
private int titleTextSize = 14;//SP
private int tabTextSize = 14;//SP
private int titleTextColor = Color.parseColor("#333333");//标题字体颜色
private int tabTextColor = R.color.fit_item_textcolor;//选项字体颜色
private int tabBgDrawable = R.drawable.item_lable_bg_shape;//选项背景颜色
//当前加载的行数
private int row = -1;
private FiltPopuWindow mFiltPopuWindow;
public Builder(Context context) {
this.context = context;
}
/**
* 设置数据源
* @return
*/
public Builder setDataSource(List<FiltModel> listData) {
this.listData = listData;
return this;
}
public Builder setColumnCount(int columnCount){
this.columnCount = columnCount;
return this;
}
public Builder setColorBg(int color){
colorBg = context.getResources().getColor(color);
return this;
}
public Builder setTitleTextSize(int titleTextSize) {
this.titleTextSize = titleTextSize;
return this;
}
public Builder setTabTextSize(int tabTextSize) {
this.tabTextSize = tabTextSize;
return this;
}
public Builder setTitleTextColor(int titleTextColor) {
this.titleTextColor = titleTextColor;
return this;
}
public Builder setTabTextColor(int tabTextColor) {
this.tabTextColor = tabTextColor;
return this;
}
public Builder setTabBgDrawable(int tabBgDrawable) {
this.tabBgDrawable = tabBgDrawable;
return this;
}
public Builder build(){
newItemLayout(getRowCount(),columnCount);
for (int i = 0; i < listData.size(); i++){
++row;
TextView view = new TextView(context);
view.setText(listData.get(i).getTypeName());
view.setTextColor(titleTextColor);
view.setTextSize(titleTextSize);
//配置列 第一个参数是起始列标 第二个参数是占几列 title（筛选类型）应该占满整行，so -> 总列数
GridLayout.Spec columnSpec = GridLayout.spec(0,columnCount);
//配置行 第一个参数是起始行标 起始行+起始列就是一个确定的位置
GridLayout.Spec rowSpec = GridLayout.spec(row);
//将Spec传入GridLayout.LayoutParams并设置宽高为0或者WRAP_CONTENT，必须设置宽高，否则视图异常
GridLayout.LayoutParams lp = new GridLayout.LayoutParams(rowSpec, columnSpec);
lp.width = GridLayout.LayoutParams.WRAP_CONTENT;
lp.height = GridLayout.LayoutParams.WRAP_CONTENT;
lp.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL);
lp.bottomMargin = context.getResources().getDimensionPixelSize(R.dimen.dp_8);
rootGridLayout.addView(view,lp);
//添加选项
addTabs(listData.get(i),i);
}
return this;
}
private void newItemLayout(int rowCount,int columnCount){
contextll = new LinearLayout(context);
contextll.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
contextll.setBackgroundColor(context.getResources().getColor(R.color.color_33000000));
contextll.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mFiltPopuWindow != null){
mFiltPopuWindow.dismiss();
//点击外部消失
}
}
});
rootGridLayout = new GridLayout(context);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
rootGridLayout.setOrientation(GridLayout.HORIZONTAL);
rootGridLayout.setRowCount(rowCount);
rootGridLayout.setColumnCount(columnCount);
rootGridLayout.setBackgroundColor(colorBg);
rootGridLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return true;
}
});
int pandd = context.getResources().getDimensionPixelSize(R.dimen.dp_10);
lp.weight = 1;
rootGridLayout.setPadding(pandd,pandd,pandd,pandd);
contextll.addView(rootGridLayout,lp);
}
/**
* 添加选项
* @param model
*/
private void addTabs(final FiltModel model, final int titleIndex){
List<FiltModel.TableMode> tabs = model.getTabs();
for (int i = 0; i < tabs.size(); i++){
if (i % columnCount == 0){
row ++;
}
final FiltModel.TableMode tab = tabs.get(i);
final TextView lable = new TextView(context);
lable.setTextColor(context.getResources().getColorStateList(tabTextColor));
lable.setBackgroundDrawable(context.getResources().getDrawable(tabBgDrawable));
lable.setSingleLine(true);
lable.setGravity(Gravity.CENTER);
lable.setEllipsize(TextUtils.TruncateAt.MIDDLE);
//这里可以自行修改tab框框的大小
int panddT = context.getResources().getDimensionPixelSize(R.dimen.dp_2);
int panddL = context.getResources().getDimensionPixelSize(R.dimen.dp_8);
lable.setPadding(panddL,panddT,panddL,panddT);
lable.setTextSize(tabTextSize);
rootGridLayout.addView(lable,getItemLayoutParams(i,row));
lable.setText(tab.name);
if (tabs.get(i) == model.getTab()){
lable.setSelected(true);
}
lable.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//lable.setSelected(true);
if (tab != model.getTab()){
//清空上次选中
rootGridLayout.getChildAt(getIndex(model,titleIndex)).setSelected(false);
//设置当前选中
model.setTab(tab);
lable.setSelected(true);
}
}
});
}
}
private GridLayout.LayoutParams getItemLayoutParams(int i,int row){
//使用Spec定义子控件的位置和比重
GridLayout.Spec rowSpec = GridLayout.spec(row,1f);
GridLayout.Spec columnSpec = GridLayout.spec(i%columnCount,1f);
//将Spec传入GridLayout.LayoutParams并设置宽高为0，必须设置宽高，否则视图异常
GridLayout.LayoutParams lp = new GridLayout.LayoutParams(rowSpec, columnSpec);
lp.width = 0;
lp.height = GridLayout.LayoutParams.WRAP_CONTENT;
lp.bottomMargin = context.getResources().getDimensionPixelSize(R.dimen.dp_8);
if(i % columnCount == 0) {//最左边
lp.leftMargin = context.getResources().getDimensionPixelSize(R.dimen.dp_10);
lp.rightMargin = context.getResources().getDimensionPixelSize(R.dimen.dp_20);
}else if((i + 1) % columnCount == 0){//最右边
lp.rightMargin = context.getResources().getDimensionPixelSize(R.dimen.dp_10);
}else {//中间
lp.rightMargin = context.getResources().getDimensionPixelSize(R.dimen.dp_20);
}
return lp;
}
/**
* 获取当前选中tab的 在整个GridLayout的索引
* @return
*/
private int getIndex(FiltModel model,int titleIndex){
int index = 0;
for (int i = 0; i < titleIndex; i++){
//计算当前类型之前的元素所占的个数 title算一个
index += listData.get(i).getTabs().size() + 1;
}
//加上当前 title下的索引
FiltModel.TableMode tableModel = model.getTab();
index += model.getTabs().indexOf(tableModel) + 1;
return index;
}
/**
* 计算行数
* @return
*/
private int getRowCount(){
int row = 0;
for (FiltModel model : listData){
//计算当前类型之前的元素所占的个数 title算一个
row ++;
int size = model.getTabs().size();
row += (size / columnCount) + (size % columnCount > 0 ? 1 : 0) ;
}
return row;
}
public FiltPopuWindow createPop(){
if (listData == null || listData.size() == 0){
try {
throw new Exception("没有筛选条件");
} catch (Exception e) {
Toast.makeText(context,e.getMessage(),Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
return null;
}
mFiltPopuWindow = new FiltPopuWindow(context,contextll);
return mFiltPopuWindow;
}
}
}
通过设置columnCount的大小可以改变列数，测试2，3，4，5没问题，只是列数越多就越挤，这是必然的。
希望对你有帮助，有问题欢迎给我留言。
这里准备了一个demo作为参考
GitHub:CutomFiltControl
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