android 多行 RadioButton的使用

Posted 2020-08-09

最近项目用到了多行RadioButton,随记录下.

先给出RadioButton的布局

<com.kuibu.jucai.widget.MyRadioGroup
    android:id="@+id/myRadioGroup"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <RadioButton
            android:id="@+id/rb_50"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:layout_marginLeft="@dimen/space_10"
            android:layout_weight="1"
            android:background="@drawable/poundage_selector"
            android:button="@null"
            android:gravity="center"
            android:paddingBottom="@dimen/space_10"
            android:paddingLeft="@dimen/space_20"
            android:paddingRight="@dimen/space_20"
            android:paddingTop="@dimen/space_10"
            android:text="50￥"
            android:textColor="@drawable/fg_order_text_selector" />


        <RadioButton
            android:id="@+id/rb_100"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:layout_marginLeft="@dimen/space_10"
            android:layout_weight="1"
            android:background="@drawable/poundage_selector"
            android:button="@null"
            android:gravity="center"
            android:paddingBottom="@dimen/space_10"
            android:paddingLeft="@dimen/space_20"
            android:paddingRight="@dimen/space_20"
            android:paddingTop="@dimen/space_10"
            android:text="100￥"
            android:textColor="@drawable/fg_order_text_selector" />

        <RadioButton
            android:id="@+id/rb_150"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:layout_marginLeft="@dimen/space_10"
            android:layout_marginRight="@dimen/space_10"
            android:layout_weight="1"
            android:background="@drawable/poundage_selector"
            android:button="@null"
            android:gravity="center"
            android:paddingBottom="@dimen/space_10"
            android:paddingLeft="@dimen/space_30"
            android:paddingRight="@dimen/space_30"
            android:paddingTop="@dimen/space_10"
            android:text="150￥"
            android:textColor="@drawable/fg_order_text_selector" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <RadioButton
            android:id="@+id/rb_200"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:layout_marginLeft="@dimen/space_10"
            android:layout_marginTop="@dimen/space_10"
            android:layout_weight="1"
            android:background="@drawable/poundage_selector"
            android:button="@null"
            android:gravity="center"
            android:paddingBottom="@dimen/space_10"
            android:paddingLeft="@dimen/space_20"
            android:paddingRight="@dimen/space_20"
            android:paddingTop="@dimen/space_10"
            android:text="200￥"
            android:textColor="@drawable/fg_order_text_selector" />

        <RadioButton
            android:id="@+id/rb_500"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:layout_marginLeft="@dimen/space_10"
            android:layout_marginTop="@dimen/space_10"
            android:layout_toRightOf="@+id/rb_200"
            android:layout_weight="1"
            android:background="@drawable/poundage_selector"
            android:button="@null"
            android:gravity="center"
            android:paddingBottom="@dimen/space_10"
            android:paddingLeft="@dimen/space_20"
            android:paddingRight="@dimen/space_20"
            android:paddingTop="@dimen/space_10"
            android:text="500￥"
            android:textColor="@drawable/fg_order_text_selector" />

        <RadioButton
            android:id="@+id/rb_1000"
            android:layout_width="match_parent"
            android:layout_height="35dp"
            android:layout_marginLeft="@dimen/space_10"
            android:layout_marginRight="@dimen/space_10"
            android:layout_marginTop="@dimen/space_10"
            android:layout_toRightOf="@+id/rb_500"
            android:layout_weight="1"
            android:background="@drawable/poundage_selector"
            android:button="@null"
            android:gravity="center"
            android:paddingBottom="@dimen/space_10"
            android:paddingLeft="@dimen/space_20"
            android:paddingRight="@dimen/space_20"
            android:paddingTop="@dimen/space_10"
            android:text="1000￥"
            android:textColor="@drawable/fg_order_text_selector" />
    </LinearLayout>
</com.kuibu.jucai.widget.MyRadioGroup>

这里用到了一个自定义控件,如下

public class MyRadioGroup extends RadioGroup {

    //对外暴漏
    private OnCheckedChangeListener mOnCheckedChangeListener;

    public MyRadioGroup(Context context) {
        super(context);
    }

    public MyRadioGroup(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public void setOnCheckedChangeListener(OnCheckedChangeListener listener) {
        mOnCheckedChangeListener = listener;
    }

    @Override
    public void addView(final View child, int index, ViewGroup.LayoutParams params) {
        if (child instanceof LinearLayout) {
            int childCount = ((LinearLayout) child).getChildCount();
            for (int i = 0; i < childCount; i++) {
                View view = ((LinearLayout) child).getChildAt(i);
                if (view instanceof RadioButton) {
                    final RadioButton button = (RadioButton) view;
                    ((RadioButton) button).setOnTouchListener(new OnTouchListener() {

                        @Override
                        public boolean onTouch(View v, MotionEvent event) {
                            ((RadioButton) button).setChecked(true);
                            checkRadioButton((RadioButton) button);
                            if (mOnCheckedChangeListener != null) {
                                mOnCheckedChangeListener.onCheckedChanged(MyRadioGroup.this, button.getId());
                            }
                            return true;
                        }
                    });
                }
            }
        }

        super.addView(child, index, params);
    }

    private void checkRadioButton(RadioButton radioButton) {
        View child;
        int radioCount = getChildCount();
        for (int i = 0; i < radioCount; i++) {
            child = getChildAt(i);
            if (child instanceof RadioButton) {
                if (child == radioButton) {
                    // do nothing
                } else {
                    ((RadioButton) child).setChecked(false);
                }
            } else if (child instanceof LinearLayout) {
                int childCount = ((LinearLayout) child).getChildCount();
                for (int j = 0; j < childCount; j++) {
                    View view = ((LinearLayout) child).getChildAt(j);
                    if (view instanceof RadioButton) {
                        final RadioButton button = (RadioButton) view;
                        if (button == radioButton) {
                            // do nothing
                        } else {
                            ((RadioButton) button).setChecked(false);
                        }
                    }
                }
            }
        }
    }
}

网络不好,无法直接插入代码,只能这样拷贝了.