動態新增重複佈局以及各子佈局點選事件
阿新 • • 發佈：2019-01-08
要求實現一個可以一次建立多個班級的功能，效果如下圖：
其中班級名和專業是一個可以複用的子view，直接使用View addView = LayoutInflater.from(CreateClassActivity.this).inflate(R.layout.add_class_view, null);
parent.addView(addView);總是會出現一個問題，不管點選哪一個子view的專業都改變的是最後一個。出現這個問題的原因就是沒有區別開view的id。借鑑http://blog.csdn.net/qq_21451721/article/details/51613513
容器佈局：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="@+id/rl_title"
android:layout_width 重複使用佈局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/add_class_add_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/base10dp"
android:orientation="horizontal"
android:paddingLeft="@dimen/base20dp">
<TextView
android:layout_width="0dp"
android:layout_height="@dimen/base40dp"
android:layout_weight="1"
android:gravity="center"
android:text="班級名:"
android:textColor="#000000"
android:textSize="18sp" />
<EditText
android:id="@+id/create_class_et_class_name"
android:layout_width="0dp"
android:layout_height="@dimen/base40dp"
android:layout_marginRight="@dimen/base20dp"
android:layout_weight="3"
android:background="@drawable/background_tv_name"
android:ellipsize="end"
android:gravity="center_vertical"
android:hint="請輸入班級名稱"
android:singleLine="true"
android:textColor="#000000"
android:textSize="16sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/create_class_ll_pro_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/base10dp"
android:orientation="horizontal"
android:paddingLeft="@dimen/base20dp">
<TextView
android:layout_width="0dp"
android:layout_height="@dimen/base40dp"
android:layout_weight="1"
android:gravity="center"
android:text="專業:"
android:textColor="#000000"
android:textSize="18sp" />
<RelativeLayout
android:layout_width="0dp"
android:layout_height="@dimen/base40dp"
android:layout_marginRight="@dimen/base20dp"
android:layout_weight="3"
android:background="@drawable/background_tv_name"
android:gravity="center_vertical">
<TextView
android:id="@+id/create_class_tv_pro_name"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:ellipsize="end"
android:gravity="center_vertical"
android:hint="請輸入"
android:singleLine="true"
android:textColor="#000000"
android:textSize="16sp" />
<View
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="bottom"
android:layout_marginBottom="@dimen/base15dp"
android:background="@drawable/select_right_down" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>初始化：
private List<View> viewList;
private List<ViewHolder> viewHolderList;
private int mark = 0;
private String classNames = "";
private String proIds = "";
protected void initView() {
viewList = new ArrayList<>();
viewHolderList = new ArrayList<>();
View addView = LayoutInflater.from(CreateClassActivity.this).inflate(R.layout.add_class_view, null);
addView.setId(mark);
parent.addView(addView, mark);
getViewInstance(addView);
}
private void getViewInstance(View addView) {
ViewHolder vh = new ViewHolder();
vh.id = addView.getId();
vh.create_class_et_class_name = (EditText) addView.findViewById(R.id.create_class_et_class_name);
vh.create_class_ll_pro_name = (LinearLayout) addView.findViewById(R.id.create_class_ll_pro_name);
vh.create_class_tv_pro_name = (TextView) addView.findViewById(R.id.create_class_tv_pro_name);
// 設定監聽
vh.create_class_ll_pro_name.setOnClickListener(selectProListener);
viewHolderList.add(vh);
viewList.add(addView);
}
View.OnClickListener selectProListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
View view = (View) v.getParent();
for (int i = 0; i < parent.getChildCount(); i++) {
ViewHolder viewHolder = viewHolderList.get(i);
DebugUtil.E("createclass", "view.getId()==" + view.getId() + " viewHolder.id==" + viewHolder.id);
if (view.getId() == viewHolder.id) {
onProfession(App.sp.getString(GlobalConstants.ORGID, ""), App.sp.getString(GlobalConstants.SCHID, ""), viewHolder.create_class_tv_pro_name, viewHolder.id);
}
}
}
}; public class ViewHolder {
private int id = -1;
private EditText create_class_et_class_name;
private LinearLayout create_class_ll_pro_name;
private TextView create_class_tv_pro_name;
}新增刪除事件：
mark++;
View addView = LayoutInflater.from(CreateClassActivity.this).inflate(R.layout.add_class_view, null);
addView.setId(mark);
parent.addView(addView);
getViewInstance(addView); int childNum = parent.getChildCount();
if (childNum > 1) {
parent.removeViewAt(childNum - 1);
viewHolderList.remove(viewHolderList.size() - 1);
viewList.remove(viewList.size() - 1);
mark--;
}最後是儲存，儲存的時候迴圈遍歷就行：
for (int i = 0; i < parent.getChildCount(); i++) {
ViewHolder viewHolder = viewHolderList.get(i);
String className = viewHolder.create_class_et_class_name.getText().toString().trim();
String proName = viewHolder.create_class_tv_pro_name.getText().toString().trim();
String proId = (String) viewHolder.create_class_tv_pro_name.getTag();
DebugUtil.E("addClass", "className==" + className);
DebugUtil.E("addClass", "proName==" + proName);
DebugUtil.E("addClass", "proId==" + proId);
}最後，需要說明的是，動態新增的子佈局中需要有點選事件的佈局必須放在第二層佈局中，否則通過view.getParent()得到的就和原本儲存的父佈局不是同一個，會造成點選事件沒有響應。