LinearLayout 获取子元素,并分别给子元素赋值实现

自动为LinearLayout的TextView赋值

最新推荐文章于 2021-05-29 13:11:31 发布

转载最新推荐文章于 2021-05-29 13:11:31 发布 · 595 阅读

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原文链接：https://blog.youkuaiyun.com/wolfking0608/article/details/83508466

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java类实现
对LinearLayout 里面所有没有标明id的TextView进行赋值

LinearLayout  thisNoLayout = findViewById(R.id.ly_this_no);
//因为父控件中写的是五个TextView,所有这里的getChildCount也是五个
String resultArray=new  String[]{"a","b","c","d","e"};
for (int i = 0; i < thisNoLayout.getChildCount(); i++) {
    TextView textView = (TextView) thisNoLayout.getChildAt(i);
    String value = resultArray[i];
    textView.setText(value);
}

布局文件如下

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:a_zhon="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:orientation="vertical"
    android:layout_height="match_parent"
    >
   
   <!--写了五个子类-->
   <LinearLayout
       android:background="#fbf0dc"
       android:id="@+id/ly_this_no"
       android:layout_marginTop="5dp"
       android:layout_marginStart="10dp"
       android:layout_marginEnd="10dp"
       android:orientation="horizontal"
       android:gravity="center"
       android:layout_width="match_parent"
       android:layout_height="wrap_content">
       <TextView
           android:textColor="@android:color/white"
           android:gravity="center"
           android:background="@drawable/shape_round_blue"
           android:textSize="16sp"
           android:layout_marginStart="5dp"
           android:layout_marginTop="10dp"
           android:layout_marginBottom="10dp"
           android:layout_width="@dimen/y17"
           android:layout_height="25dp" />
       <TextView
           android:textColor="@android:color/white"
           android:gravity="center"
           android:background="@drawable/shape_round_blue"
           android:textSize="16sp"
           android:layout_marginStart="@dimen/x10"
           android:layout_marginTop="10dp"
           android:layout_marginBottom="10dp"
           android:layout_width="@dimen/y17"
           android:layout_height="25dp" />
       <TextView
           android:textColor="@android:color/white"
           android:gravity="center"
           android:background="@drawable/shape_round_blue"
           android:textSize="16sp"
           android:layout_marginStart="@dimen/x10"
           android:layout_marginTop="10dp"
           android:layout_marginBottom="10dp"
           android:layout_width="@dimen/y17"
           android:layout_height="25dp" />
       <TextView
           android:textColor="@android:color/white"
           android:gravity="center"
           android:background="@drawable/shape_round_blue"
           android:textSize="16sp"
           android:layout_marginStart="@dimen/x10"
           android:layout_marginTop="10dp"
           android:layout_marginBottom="10dp"
           android:layout_width="@dimen/y17"
           android:layout_height="25dp" />
       <TextView
           android:textColor="@android:color/white"
           android:gravity="center"
           android:background="@drawable/shape_round_blue"
           android:textSize="16sp"
           android:layout_marginStart="@dimen/x10"
           android:layout_marginTop="10dp"
           android:layout_marginBottom="10dp"
           android:layout_width="@dimen/y17"
           android:layout_height="@dimen/y17" />
   </LinearLayout>
     
</LinearLayout>