Android split分割特殊字符取名称的方法

<?xml version="1.0" encoding="utf-8"?>
<layout>
    <data class="NewBer">
    
    </data>
    <RelativeLayout xmlns:android="Http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        tools:context=".MainActivity">
        <Button
            android:id="@+id/bt_back"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="获取名字"
            >
        </Button>
    </RelativeLayout>
</layout>

public class MainActivity extends Activity {
 private NewBer dataBinding;
    String list="张三|3728478,李四|98956265,王五|6233265,赵六|56221456";
    String as="";
    private String substring;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        dataBinding = DataBindingUtil.setContentView(this, R.layout.activity_main);
        //点击获取名称
        dataBinding.btBack.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //从大到小，先分割逗号（,）随后在分割特殊字符（|） 注：（|）一定要加上前面的两个（\\）
                String[] split = list.split(",");
                for (int i = 0; i < split.length; i++) {
                    String[] split2 = split[i].split("\\|");
                    for (int j = 0; j < split2.length; j++) {
                        //取（偶数）|前面名字,取（奇数）j%2!=0为|后面的数字
                        if (j%2==0){
                            as += split2[j]+",";
                            //分割最后的逗号（,）
                            if (0 < as.length()-1){
                                substring = as.substring(0, as.length()-1);
                            }
                            Log.i("TAG",substring);    //输出结果：张三,李四,王五,赵六
                            dataBinding.btBack.setText(substring);
                        }
                    }
                }
            }
        });
    }
}