Android Material Chip - 具有 singleSelection 的 ChipGroup 无法动态添加芯片

Question

我正在使用Material Chip第一次。

问题:我使用以下代码动态添加芯片。请检查我写的 app:singleSelection="true" 这对我来说很重要。 即使它一次选择多个芯片。

我想一次仅选择一个带刻度线的芯片。

XML 代码:

<com.google.android.material.chip.ChipGroup
                android:id="@+id/categoryChipsView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center_vertical"
                android:orientation="horizontal"
                app:chipSpacing="10dp"
                app:singleSelection="true"
                app:itemSpacing="15dp"
                app:singleLine="true">
</com.google.android.material.chip.ChipGroup>

Java 代码:

private void addChipView(String chipText) {
    View child = getLayoutInflater().inflate(R.layout.row_chip_view, null);
    Chip chip = child.findViewById(R.id.chip);
    chip.setText(chipText);
    chip.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(mContext, ((Chip) v).getText(), Toast.LENGTH_SHORT).show();
        }
    });
    // This is ChipGroup view
    binding.categoryChipsView.addView(child);
}

row_chip_view.xml

<com.google.android.material.chip.Chip xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/chip"
    style="@style/Widget.MaterialComponents.Chip.Filter"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="10dp"
    android:text="@string/app_name"
    android:textColor="@android:color/white"
    app:checkedIcon="@drawable/ic_check"
    app:chipBackgroundColor="@color/colorAccent"
    app:chipEndPadding="8dp"
    app:chipIconTint="@android:color/white"
    app:chipStartPadding="8dp"
    app:textEndPadding="5dp"
    app:textStartPadding="5dp" />

我静态地尝试过，我已将 row_chip_view.xml 的 View 粘贴为主 xml 中 ChipGroup 的子级，并且工作正常。我一次只能选择一个芯片。

           <com.google.android.material.chip.ChipGroup
                android:id="@+id/categoryChipsView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center_vertical"
                android:orientation="horizontal"
                app:chipSpacing="10dp"
                app:singleSelection="true"
                app:itemSpacing="15dp"
                app:singleLine="true">

                <com.google.android.material.chip.Chip 
                    android:id="@+id/chip"
                    style="@style/Widget.MaterialComponents.Chip.Filter"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:text="@string/app_name"
                    android:textColor="@android:color/white"
                    app:checkedIcon="@drawable/ic_check"
                    app:chipBackgroundColor="@color/colorAccent"
                    app:chipEndPadding="8dp"
                    app:chipIconTint="@android:color/white"
                    app:chipStartPadding="8dp"
                    app:textEndPadding="5dp"
                    app:textStartPadding="5dp" />

                <com.google.android.material.chip.Chip 
                    android:id="@+id/chip2"
                    style="@style/Widget.MaterialComponents.Chip.Filter"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:text="@string/app_name"
                    android:textColor="@android:color/white"
                    app:checkedIcon="@drawable/ic_check"
                    app:chipBackgroundColor="@color/colorAccent"
                    app:chipEndPadding="8dp"
                    app:chipIconTint="@android:color/white"
                    app:chipStartPadding="8dp"
                    app:textEndPadding="5dp"
                    app:textStartPadding="5dp" />

                <com.google.android.material.chip.Chip 
                    android:id="@+id/chip3"
                    style="@style/Widget.MaterialComponents.Chip.Filter"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:text="@string/app_name"
                    android:textColor="@android:color/white"
                    app:checkedIcon="@drawable/ic_check"
                    app:chipBackgroundColor="@color/colorAccent"
                    app:chipEndPadding="8dp"
                    app:chipIconTint="@android:color/white"
                    app:chipStartPadding="8dp"
                    app:textEndPadding="5dp"
                    app:textStartPadding="5dp" />

            </com.google.android.material.chip.ChipGroup>

但我想要动态的。

Update: New Scenario

First of all I have added four chips in XML within ChipGroup and after that tried to add another three chips PROGRAMATICALLY in same ChipGroup. The first four chips is allow to select only one but last three chips allow me to select multiple. Very Weird.

如果我遗漏了什么，请告诉我。

我们将不胜感激您的帮助。

Answer 1

删除row_chip_view.xml中的android:id属性。

<com.google.android.material.chip.Chip 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    style="@style/Widget.MaterialComponents.Chip.Filter"
    .../>

并在addChipView中使用:

private void addChipView(String chipText) {
    Chip chip = (Chip) getLayoutInflater().inflate(R.layout.row_chip_view, chipGroup, false);
    chip.setText(chipText);
    //...

    // This is ChipGroup view
    chipGroup.addView(chip);
}