ListView之二。

最新推荐文章于 2017-07-01 10:53:24 发布

转载最新推荐文章于 2017-07-01 10:53:24 发布 · 100 阅读

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原文链接：http://www.cnblogs.com/xiaoxiaomeng/p/5682734.html

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#移动开发 #java

activity_main.xml:

<RelativeLayout

android:width="match_parent"

android:height="60dp"

android:background="@android:color/holo_blue_bright">

<Button

android:id= "@+id/btnBack"

android:centerVertical="true"

android:text="返回"

android:width="wrap_content"

android:height="wrap_content"

android:visibility = "gont"/>

<TextView

android:width="wrap_content"

android:height="wrap_content"

android:text="学生列表"

android:textSize="20sp"

android:centerVertical="true"

android:centerHorizontal="true"/>

</RelativeLayout>

<ListView

android:layout_width="wrap_content"

android:layout_height = "wrap_content"

android:id = "@+id/listViewStudent"

></ListView>

MainActivity.java:

private ListView listViewStudent;

this.listViewStudent = (ListView)this.findViewById(R.id.listViewStudent);

StudentAdapter studentAdapter = new StudentAdapter(this.getData(),this);

this.listViewStudent.setAdapter(studentAdapter);

private List<Student> getData(){

List<Student> data = new ArrayList<>();

for(int idx = 0;idx<30;idx++){

Student student = new Student();

student.setHeight(160 + idx);

student.setName("杨森");

if(idx % 2 ==0){

student.setSex("女");

}

else{

student.setSex("男");

}

data.add(student);

}

return data;

}

StudentAdapter.java extends BaseAdapter:

public studentAdapter(List<Student>,Activity activity){

this.studentList = studentList;

this.activity = activity;

}

private List<Student> studentList;

private Activity activity;

/*
显示Item的数量
 */
@Override
public int getCount() {
    System.out.println("-----getCount-----");
    return this.studentList.size();
}

@Override
public Object getItem(int position) {

    System.out.println("-----getItem-----");

    return this.studentList.get(position);

@Override
public long getItemId(int position) {

    System.out.println("-----getItemId-----",+position);

    return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
//System.out.println("-----getView----"+position);
Student student = this.studentList.get(position);

TextView tvName=(TextView)findViewById(R.id.tvName);
TextView tvHeight=(TextView)findViewById(R.id.tvHeight);
TextView tvSex=(TextView)findViewById(R.id.tvSex);

tvName.setName(student.getName());
tvheight.setName(student.getHeight());
tvSex.setName(student.getSex());



View view = View.inflate(this.activity,R.layout.listview_item_student,null);
    return view;
}

转载于:https://www.cnblogs.com/xiaoxiaomeng/p/5682734.html