Cdroid/apps/samples/listview3.cc

#include <windows.h>
#include <cdlog.h>

class DataView:public LinearLayout,public Checkable{
private:
    TextView* id;
    TextView* name;
    CheckBox* chk;
public:
    DataView():LinearLayout(LayoutParams::MATCH_PARENT,LayoutParams::WRAP_CONTENT){
        id=new TextView("",0,0);
        id->setBackgroundColor(0xFF222222);
        setGravity(Gravity::CENTER);
        LinearLayout::LayoutParams*lp=new LinearLayout::LayoutParams(50,LayoutParams::WRAP_CONTENT);
        addView(id,lp);

        name=new TextView("",0,0);
        lp=new LinearLayout::LayoutParams(LayoutParams::WRAP_CONTENT,LayoutParams::WRAP_CONTENT,5);
        addView(name,lp);

        chk=new CheckBox("",0,0);
        lp= new LinearLayout::LayoutParams(LayoutParams::WRAP_CONTENT,LayoutParams::WRAP_CONTENT,1);
        addView(chk,lp);
    }
    void setChecked(bool checked)override{
        chk->setChecked(checked);
    }
    bool isChecked()const override{
        return chk->isChecked();
    }
    void toggle()override{
        chk->toggle();
    }
    void setName(const std::string&txt){
        name->setText(txt);
    }
    void setId(int idpos){
        id->setText(std::to_string(idpos));
    }
    void startMarqueeIfNeed(bool enableMarquee){
        name->setSingleLine(enableMarquee);
        name->setEllipsize(enableMarquee?Layout::ELLIPSIS_MARQUEE:Layout::ELLIPSIS_NONE);
        name->setSelected(enableMarquee);
        requestLayout();
    }
};
struct MyData{
    int id;
    std::string name;
};
class MyAdapter:public ArrayAdapter<MyData>{
public:
    MyAdapter():ArrayAdapter(){
    }
    View*getView(int position, View* convertView, ViewGroup* parent)override{
        DataView *dv=(DataView*)convertView;
        MyData&dt=getItemAt(position);
        if(convertView==nullptr){
            dv=new DataView();
        }
        dv->setId(dt.id);
        dv->startMarqueeIfNeed(position==10);
        dv->setName(dt.name);
        return dv;
    }
};

int main(int argc,const char*argv[]){
    App app(argc,argv);
    Window*w=new Window(50,50,1200,640);
    MyAdapter*adapter=new MyAdapter();
    ListView*lv=(ListView*)&w->addView(new ListView(460,500));
    lv->setPos(10,10);
    lv->setDivider(new ColorDrawable(0x66008800));
    lv->setVerticalScrollBarEnabled(true);
    lv->setDividerHeight(1);
    for(int i=0;i<56;i++){
        MyData dt;
        dt.id=i;
        dt.name=std::string("Name ")+std::to_string(i);
        if(i==10||i==11)
           dt.name="test line with marquee support ,the lie must be long enough";
        adapter->add(dt);
    }
    lv->setAdapter(adapter);
    adapter->notifyDataSetChanged();
    lv->setSelector(new ColorDrawable(0x8800FF00));
    lv->setSelection(2);
    lv->setOnItemClickListener([](AdapterView&lv,View&v,int pos,long id){
        LOGD("clicked %d",pos);
    });
    app.exec();
    return 0;
};