实现RadioButton多行多列排列布局

package com.widget.view;import java.util.ArrayList;import java.util.List;import android.annotation.SuppressLint;import android.content.Context;import android.content.res.TypedArray;import android.os.Build;import android.util.AttributeSet;import android.view.View;import android.view.ViewGroup;import android.view.accessibility.AccessibilityEvent;import android.view.accessibility.AccessibilityNodeInfo;import android.widget.CompoundButton;import android.widget.LinearLayout;import android.widget.RadioButton;/** * 复杂样式的单选框，自定义RadioGroup实现RadioButton多行多列排列布局 *  * 1、使用与RadioGroup一样，MutilRadioGroup里的所有RadioButton（包括MutilRadioGroup里嵌套的子布局里面的所有RadioButton）属于同一组。2、增加方法setCheckWithoutNotification(int id)，设置默认的RadioButton被选中，但是不响应监听事件。 * @author https://github.com/pheng/android_radiogroup_MutilRadioGroup * */public class MutilRadioGroup extends LinearLayout {    // holds the checked id; the selection is empty by default    private int mCheckedId = -1;    // tracks children radio buttons checked state    private CompoundButton.OnCheckedChangeListener mChildOnCheckedChangeListener;    // when true, mOnCheckedChangeListener discards events    private boolean mProtectFromCheckedChange = false;    private OnCheckedChangeListener mOnCheckedChangeListener;    private PassThroughHierarchyChangeListener mPassThroughListener;    /**     * {@inheritDoc}     */    public MutilRadioGroup(Context context) {        super(context);        setOrientation(VERTICAL);        init();    }    /**     * {@inheritDoc}     */    public MutilRadioGroup(Context context, AttributeSet attrs) {        super(context, attrs);        init();    }    private void init() {        mChildOnCheckedChangeListener = new CheckedStateTracker();        mPassThroughListener = new PassThroughHierarchyChangeListener();        super.setOnHierarchyChangeListener(mPassThroughListener);    }    /**     * {@inheritDoc}     */    @Override    public void setOnHierarchyChangeListener(OnHierarchyChangeListener listener) {        // the user listener is delegated to our pass-through listener        mPassThroughListener.mOnHierarchyChangeListener = listener;    }        /**     * set the default checked radio button, without notification the listeners     * @param mCheckedId the default checked radio button's id, if none use -1     */    public void setCheckWithoutNotification(int id){        if (id != -1 && (id == mCheckedId)) {            return;        }        mProtectFromCheckedChange = true;        if (mCheckedId != -1) {            setCheckedStateForView(mCheckedId, false);        }        if (id != -1) {        mProtectFromCheckedChange = true;        }        mProtectFromCheckedChange = false;        mCheckedId = id;    }    @Override    public void addView(View child, int index, ViewGroup.LayoutParams params) {    List<RadioButton> btns = getAllRadioButton(child);    if(btns != null && btns.size() > 0){    for(RadioButton button : btns){    if (button.isChecked()) {        mProtectFromCheckedChange = true;        if (mCheckedId != -1) {        setCheckedStateForView(mCheckedId, false);        }        mProtectFromCheckedChange = false;        setCheckedId(button.getId());        }    }    }        super.addView(child, index, params);    }        /**     * get all radio buttons which are in the view     * @param child     */    private List<RadioButton> getAllRadioButton(View child){    List<RadioButton> btns = new ArrayList<RadioButton>();    if (child instanceof RadioButton) {    btns.add((RadioButton) child);    }else if(child instanceof ViewGroup){    int counts = ((ViewGroup) child).getChildCount();    for(int i = 0; i < counts; i++){    btns.addAll(getAllRadioButton(((ViewGroup) child).getChildAt(i)));    }    }    return btns;    }    /**     * <p>Sets the selection to the radio button whose identifier is passed in     * parameter. Using -1 as the selection identifier clears the selection;     * such an operation is equivalent to invoking {@link #clearCheck()}.</p>     *     * @param id the unique id of the radio button to select in this group     *     * @see #getCheckedRadioButtonId()     * @see #clearCheck()     */    public void check(int id) {        // don't even bother        if (id != -1 && (id == mCheckedId)) {            return;        }        if (mCheckedId != -1) {            setCheckedStateForView(mCheckedId, false);        }        if (id != -1) {            setCheckedStateForView(id, true);        }        setCheckedId(id);    }    private void setCheckedId(int id) {        mCheckedId = id;        if (mOnCheckedChangeListener != null) {            mOnCheckedChangeListener.onCheckedChanged(this, mCheckedId);        }    }    private void setCheckedStateForView(int viewId, boolean checked) {        View checkedView = findViewById(viewId);        if (checkedView != null && checkedView instanceof RadioButton) {            ((RadioButton) checkedView).setChecked(checked);        }    }    /**     * <p>Returns the identifier of the selected radio button in this group.     * Upon empty selection, the returned value is -1.</p>     *     * @return the unique id of the selected radio button in this group     *     * @see #check(int)     * @see #clearCheck()     *     * @attr ref android.R.styleable#MyRadioGroup_checkedButton     */    public int getCheckedRadioButtonId() {        return mCheckedId;    }    /**     * <p>Clears the selection. When the selection is cleared, no radio button     * in this group is selected and {@link #getCheckedRadioButtonId()} returns     * null.</p>     *     * @see #check(int)     * @see #getCheckedRadioButtonId()     */    public void clearCheck() {        check(-1);    }    /**     * <p>Register a callback to be invoked when the checked radio button     * changes in this group.</p>     *     * @param listener the callback to call on checked state change     */    public void setOnCheckedChangeListener(OnCheckedChangeListener listener) {        mOnCheckedChangeListener = listener;    }    /**     * {@inheritDoc}     */    @Override    public LayoutParams generateLayoutParams(AttributeSet attrs) {        return new MutilRadioGroup.LayoutParams(getContext(), attrs);    }    /**     * {@inheritDoc}     */    @Override    protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {        return p instanceof MutilRadioGroup.LayoutParams;    }    @Override    protected LinearLayout.LayoutParams generateDefaultLayoutParams() {        return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);    }    @Override    public void onInitializeAccessibilityEvent(AccessibilityEvent event) {        super.onInitializeAccessibilityEvent(event);        event.setClassName(MutilRadioGroup.class.getName());    }    @Override    public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {        super.onInitializeAccessibilityNodeInfo(info);        info.setClassName(MutilRadioGroup.class.getName());    }    /**     * <p>This set of layout parameters defaults the width and the height of     * the children to {@link #WRAP_CONTENT} when they are not specified in the     * XML file. Otherwise, this class ussed the value read from the XML file.</p>     *     * <p>See     * {@link android.R.styleable#LinearLayout_Layout LinearLayout Attributes}     * for a list of all child view attributes that this class supports.</p>     *     */    public static class LayoutParams extends LinearLayout.LayoutParams {        /**         * {@inheritDoc}         */        public LayoutParams(Context c, AttributeSet attrs) {            super(c, attrs);        }        /**         * {@inheritDoc}         */        public LayoutParams(int w, int h) {            super(w, h);        }        /**         * {@inheritDoc}         */        public LayoutParams(int w, int h, float initWeight) {            super(w, h, initWeight);        }        /**         * {@inheritDoc}         */        public LayoutParams(ViewGroup.LayoutParams p) {            super(p);        }        /**         * {@inheritDoc}         */        public LayoutParams(MarginLayoutParams source) {            super(source);        }        /**         * <p>Fixes the child's width to         * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and the child's         * height to  {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}         * when not specified in the XML file.</p>         *         * @param a the styled attributes set         * @param widthAttr the width attribute to fetch         * @param heightAttr the height attribute to fetch         */        @Override        protected void setBaseAttributes(TypedArray a,                int widthAttr, int heightAttr) {            if (a.hasValue(widthAttr)) {                width = a.getLayoutDimension(widthAttr, "layout_width");            } else {                width = WRAP_CONTENT;            }                        if (a.hasValue(heightAttr)) {                height = a.getLayoutDimension(heightAttr, "layout_height");            } else {                height = WRAP_CONTENT;            }        }    }    /**     * <p>Interface definition for a callback to be invoked when the checked     * radio button changed in this group.</p>     */    public interface OnCheckedChangeListener {        /**         * <p>Called when the checked radio button has changed. When the         * selection is cleared, checkedId is -1.</p>         *         * @param group the group in which the checked radio button has changed         * @param checkedId the unique identifier of the newly checked radio button         */        public void onCheckedChanged(MutilRadioGroup group, int checkedId);    }    private class CheckedStateTracker implements CompoundButton.OnCheckedChangeListener {        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {            // prevents from infinite recursion            if (mProtectFromCheckedChange) {                return;            }            mProtectFromCheckedChange = true;            if (mCheckedId != -1) {                setCheckedStateForView(mCheckedId, false);            }            mProtectFromCheckedChange = false;            int id = buttonView.getId();            setCheckedId(id);        }    }    /**     * <p>A pass-through listener acts upon the events and dispatches them     * to another listener. This allows the table layout to set its own internal     * hierarchy change listener without preventing the user to setup his.</p>     */    private class PassThroughHierarchyChangeListener implements            ViewGroup.OnHierarchyChangeListener {        private ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener;        /**         * {@inheritDoc}         */        @SuppressLint("NewApi")public void onChildViewAdded(View parent, View child) {            if (parent == MutilRadioGroup.this ) {            List<RadioButton> btns = getAllRadioButton(child);            if(btns != null && btns.size() > 0){            for(RadioButton btn : btns){            int id = btn.getId();            // generates an id if it's missing            if (id == View.NO_ID && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {            id = View.generateViewId();            btn.setId(id);            }            btn.setOnCheckedChangeListener(            mChildOnCheckedChangeListener);            }            }            }            if (mOnHierarchyChangeListener != null) {                mOnHierarchyChangeListener.onChildViewAdded(parent, child);            }        }        /**         * {@inheritDoc}         */        public void onChildViewRemoved(View parent, View child) {            if (parent == MutilRadioGroup.this) {                List<RadioButton> btns = getAllRadioButton(child);            if(btns != null && btns.size() > 0){            for(RadioButton btn : btns){            btn.setOnCheckedChangeListener(null);            }            }            }            if (mOnHierarchyChangeListener != null) {                mOnHierarchyChangeListener.onChildViewRemoved(parent, child);            }        }    }}

CircleCheckBox
https://github.com/CoXier/CheckBox