Android_自定义view.

新建一个View继承FrameLayout

package com.huawo.module_interaction.ui.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.widget.FrameLayout;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.constraintlayout.widget.ConstraintSet;
import androidx.databinding.ObservableArrayList;
import androidx.databinding.ObservableInt;

import com.huawo.module_interaction.R;
import com.huawo.module_interaction.databinding.ViewPaiPercentBinding;
import com.huawo.module_interaction.databinding.ViewWeekChooseBinding;

import me.goldze.mvvmhabit.binding.command.BindingCommand;

public class PaiPercentView extends FrameLayout {
    private ViewPaiPercentBinding binding;

    public PaiPercentView(@NonNull Context context) {
        super(context);
        initView(context, null);
    }

    public PaiPercentView(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        initView(context, attrs);
    }

    private void initView(Context context, AttributeSet attrs) {
        binding = ViewPaiPercentBinding.inflate(LayoutInflater.from(context), this, true);
    }

    public void setPaiValue(ObservableInt pai) {
        this.pai = pai;

        // 假设你已经有一个ConstraintLayout和相关的子视图
//        ConstraintLayout constraintLayout = binding.constraintLayoutO1;
        // 创建一个ConstraintSet
        ConstraintSet constraintSet = new ConstraintSet();
        // 将ConstraintSet的参考设置为当前的ConstraintLayout的状态
        constraintSet.clone(binding.constraintLayoutO1);
        // 设置水平偏移量
        float bias = 0.2f; // 例如，设置偏移量为50%，即子视图居中
        constraintSet.setHorizontalBias(R.id.tv_pai_value_home, (float) pai.get() / 100);
        // 应用这个ConstraintSet的更改
        constraintSet.applyTo(binding.constraintLayoutO1);
    }

    private ObservableInt pai;


}

绑定对应的xml界面

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">

    <data>

        <import type="java.util.Calendar" />

        <import type="com.huawo.module_service.util.ResourceUtils" />

        <variable
            name="pai"
            type="androidx.databinding.ObservableInt" />
    </data>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/constraint_layout_o1"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintTop_toTopOf="parent">
        <View
            android:id="@+id/tv_pai_view_1"
            android:layout_width="match_parent"
            android:layout_height="16dp"
            android:layout_marginTop="4dp"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:background="@drawable/shape_main_activity_pai_state" />

        <ImageView
            android:id="@+id/tv_pai_value_home"
            android:layout_width="16dp"
            android:layout_height="16dp"
            app:layout_constraintHorizontal_bias="0.2"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            android:background="@drawable/shape_main_activity_pai_state_round"
            tools:ignore="MissingConstraints" />


        <TextView
            android:id="@+id/tv_pai_text_2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="13dp"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:text="0"
            android:textColor="#ff888888"
            android:textSize="14dp" />

        <TextView
            android:id="@+id/tv_pai_text_1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_marginTop="13dp"
            android:text="100"
            android:textColor="#ff888888"
            android:textSize="14dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent" />


    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>