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android应用开发--------------看RadioGroup源代码,写相似单选选项卡的集成控件(如底部导航,tab等等)...
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发布时间:2019-06-24

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上面就是需求设计,4个类似的布局控件。每次仅仅能选择一个。然后得到上面相应的钱数。(上面仅仅是效果图,实际数据是从server获取,然后付到控件上)

看到这样的。我们就回忆到,几种实现方法。

1.把这个总体写一个布局。在xml布局中。复制粘贴,代码。凑够4个。很不建议这样。由于4个的布局样式是一样的,仅仅是数据可能不同样,所以我们应该写一个组合控件然后反复利用。

2.就是写一个单个的布局控件,然后设置一些设置数据的方法,然后反复利用它。引入四个控件。这样在一定程度上达到了代码反复利用性,可是以后在布局中这一块要是去掉。可能你要改动的代码也是会比較多了。

 

3.另一种就是使用GridView。我们看多多个同样的布局。就会相到使用listView和GridView。

这样的方法是能够使用的,只是在有个问题是,假设没有数据的前提下,它将会是一个空布局。不太好看。对于后期改动或去掉这一部分布局的话,相对来说好算比較好改动,去电一个GridView和他相相应的adapter就好了。

 

以下我们在针对另外一种来说一下,解决一下他的不好改动的特点。由于。我们一般写完程序之后就会懒得改动,所以我们在第一次编写的时候,要为以后的改动做好准备,一切为了方便改动。由于程序猿都知道,产品的需求是一直在变化。。。。。。你们懂就好,假如。产品想把这个东西换一个样式,或是直接其用掉这一部分布局。那我们就尽量做到,删除几行代码搞定它。

那么就须要我们在2方式的基础上再封装一层。

把四个弄成一个控件,然后再总体加进去。

 

你们细致看,上面的是不是一个单选按钮组?就和androd的radiobutton控件相似,然后用一个radioGroup包括。

所以我们能够针对这个写一个类似RadioGroup和RadioButton那样类似的东西。

 

首先先解决RadioButton类似的控件。先写一个布局,这种布局。

 

布局为,

就这么简单写一下。

然后把其总体封装为一个组合控件。编写方法什么的。

 

public class RechargeValueLayout extends FrameLayout{	private View view;	private TextView mZengs;	private TextView mMoney;	private TextView mCords;	private String money;	private LinearLayout mllbg;	private Boolean isChecked;		public RechargeValueLayout(Context context, AttributeSet attrs, int defStyle) {		super(context, attrs, defStyle);		// TODO Auto-generated constructor stub	}	public RechargeValueLayout(Context context, AttributeSet attrs) {		super(context, attrs);		view = View.inflate(context, R.layout.recharge_value_item, this);		mllbg = (LinearLayout)view.findViewById(R.id.llbg);		mZengs = (TextView)view.findViewById(R.id.tvZengs);		mMoney = (TextView)view.findViewById(R.id.tvMoney);		mCords = (TextView)view.findViewById(R.id.tvcords);	}	public RechargeValueLayout(Context context) {		super(context);	}		public void setChecked(Boolean isChecked){		Log.i("TAG2", "isSelected===>>>>"+isChecked);		if(isChecked==this.isChecked){			return;		}		if(isChecked){			mllbg.setBackgroundResource(R.drawable.btn_recharge_active);		}else{			mllbg.setBackgroundResource(R.drawable.btn_recharge);		}		this.isChecked = isChecked;	}		public boolean isChecked(){		return this.isChecked;	}		public void setZengsValue(int value){		if(value>0){			mZengs.setVisibility(View.VISIBLE);			mZengs.setText("送"+value+"");		}else{			mZengs.setVisibility(View.GONE);		}	}	public String getMoneyValue(){		return this.money;	}	public void setMoneyValue(int value){		if(value>0){			mMoney.setText(value+"");			this.money = value+"";		}else{			mMoney.setText("0币");		}	}		public void setCordsValue(int value){		if(value>0){			mCords.setText(value+"币");		}else{			mCords.setText("0币");		}	}		}

这样,你就直接能够引用其路径,直接使用这个组合控件。事实上到这里。就实现了2方式所说的。

可是仅用这个,那么我们仅仅是实现了布局重用。可是不好进行替换改动,你能够想想,这么一个控件里有3个textView。而且我们要对其textView进行赋值。也就是说我们要对12TextView经行操作,假设这12TextView放在我们activity里,一是代码过于臃肿。二是你想想,假设以后去掉的话,我们就得对这全部涉及到这12个TextView的代码都得进行删除。

所以我们如今要把这四个控件再给他们一个类似RadioGroup的容器,在RadioGroup里有一个点击事件,仅仅要对RadioCroup设置上监听,那么在RadioGroup的控件就自己主动设置上了监听,所以,咱activity里面我们仅仅须要这个RadioGroup的控件代码。1个对12个。你们想想到知道兴许改动操作那种方便。

 

開始是想的定义的布局控件,这个布局控件得到自己里面的孩子数。然后再遍历循环给孩子设置上监听。但是失败了。

详细的说说失败的代码。

这是布局,首先把RechargeValueLayout放到RechargeValueGroup里面,然后RechargeValueGroup里面得到自己的孩子数,

public class RechargeValueGroup extends FrameLayout {	private OnItemTabClickListener listener;		public RechargeValueGroup(Context context, AttributeSet attrs, int defStyle) {		super(context, attrs, defStyle);		// TODO Auto-generated constructor stub	}	public RechargeValueGroup(Context context, AttributeSet attrs) {		super(context, attrs);		init();	}		public RechargeValueGroup(Context context) {		super(context);		// TODO Auto-generated constructor stub	}		private void init() {		int count = getChildCount();		for (int i = 0; i < count; i++) {			getChildAt(i).setOnClickListener(new OnClickListener() {								@Override				public void onClick(View v) {					if(listener!=null){						listener.onItemClick(RechargeValueGroup.this,v.getId());					}				}			});		}	}	/**	 * 定义Group的监听,点击每个子button就会返回相相应子button的信息,以方便操作	 */	public interface OnItemTabClickListener {		public void onItemClick(RechargeValueGroup view, int checkedId);	}	}

但是这样有个问题。在构造函数运行的时候是获得不到孩子数的,这样就没法给孩子设置上监听了。

然后我就想记得曾经是在onMeasure里面能够得到孩子数。把init的部分放到onMeasure或onLayout方法里,孩子数是得到了。但是这两个方法是,仅仅要布局有变化,其都会走一遍,也就是说仅仅要你布局有变化,他们就会运行,所以出现了一些问题。所以在这两个方法中设置监听是不太好的。

那怎么样技能自己主动获得孩子数。又能给相应的孩子设置上监听呢?

 

于是我就去看了一下RadioGroup的源代码。

/* * Copyright (C) 2006 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *      http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package android.widget;import com.android.internal.R;import android.content.Context;import android.content.res.TypedArray;import android.util.AttributeSet;import android.view.View;import android.view.ViewGroup;import android.view.accessibility.AccessibilityEvent;import android.view.accessibility.AccessibilityNodeInfo;/** * 

This class is used to create a multiple-exclusion scope for a set of radio * buttons. Checking one radio button that belongs to a radio group unchecks * any previously checked radio button within the same group.

* *

Intially, all of the radio buttons are unchecked. While it is not possible * to uncheck a particular radio button, the radio group can be cleared to * remove the checked state.

* *

The selection is identified by the unique id of the radio button as defined * in the XML layout file.

* *

XML Attributes

*

See {@link android.R.styleable#RadioGroup RadioGroup Attributes}, * {@link android.R.styleable#LinearLayout LinearLayout Attributes}, * {@link android.R.styleable#ViewGroup ViewGroup Attributes}, * {@link android.R.styleable#View View Attributes}

*

Also see * {@link android.widget.LinearLayout.LayoutParams LinearLayout.LayoutParams} * for layout attributes.

* * @see RadioButton * */public class RadioGroup 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 RadioGroup(Context context) { super(context); setOrientation(VERTICAL); init(); } /** * {@inheritDoc} */ public RadioGroup(Context context, AttributeSet attrs) { super(context, attrs); // retrieve selected radio button as requested by the user in the // XML layout file TypedArray attributes = context.obtainStyledAttributes( attrs, com.android.internal.R.styleable.RadioGroup, com.android.internal.R.attr.radioButtonStyle, 0); int value = attributes.getResourceId(R.styleable.RadioGroup_checkedButton, View.NO_ID); if (value != View.NO_ID) { mCheckedId = value; } final int index = attributes.getInt(com.android.internal.R.styleable.RadioGroup_orientation, VERTICAL); setOrientation(index); attributes.recycle(); 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; } /** * {@inheritDoc} */ @Override protected void onFinishInflate() { super.onFinishInflate(); // checks the appropriate radio button as requested in the XML file if (mCheckedId != -1) { mProtectFromCheckedChange = true; setCheckedStateForView(mCheckedId, true); mProtectFromCheckedChange = false; setCheckedId(mCheckedId); } } @Override public void addView(View child, int index, ViewGroup.LayoutParams params) { if (child instanceof RadioButton) { final RadioButton button = (RadioButton) child; if (button.isChecked()) { mProtectFromCheckedChange = true; if (mCheckedId != -1) { setCheckedStateForView(mCheckedId, false); } mProtectFromCheckedChange = false; setCheckedId(button.getId()); } } super.addView(child, index, params); } /** *

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()}.

* * @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); } } /** *

Returns the identifier of the selected radio button in this group. * Upon empty selection, the returned value is -1.

* * @return the unique id of the selected radio button in this group * * @see #check(int) * @see #clearCheck() * * @attr ref android.R.styleable#RadioGroup_checkedButton */ public int getCheckedRadioButtonId() { return mCheckedId; } /** *

Clears the selection. When the selection is cleared, no radio button * in this group is selected and {@link #getCheckedRadioButtonId()} returns * null.

* * @see #check(int) * @see #getCheckedRadioButtonId() */ public void clearCheck() { check(-1); } /** *

Register a callback to be invoked when the checked radio button * changes in this group.

* * @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 RadioGroup.LayoutParams(getContext(), attrs); } /** * {@inheritDoc} */ @Override protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { return p instanceof RadioGroup.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(RadioGroup.class.getName()); } @Override public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { super.onInitializeAccessibilityNodeInfo(info); info.setClassName(RadioGroup.class.getName()); } /** *

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.

* *

See * {@link android.R.styleable#LinearLayout_Layout LinearLayout Attributes} * for a list of all child view attributes that this class supports.

* */ 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); } /** *

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.

* * @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; } } } /** *

Interface definition for a callback to be invoked when the checked * radio button changed in this group.

*/ public interface OnCheckedChangeListener { /** *

Called when the checked radio button has changed. When the * selection is cleared, checkedId is -1.

* * @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(RadioGroup 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); } } /** *

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.

*/ private class PassThroughHierarchyChangeListener implements ViewGroup.OnHierarchyChangeListener { private ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener; /** * {@inheritDoc} */ public void onChildViewAdded(View parent, View child) { if (parent == RadioGroup.this && child instanceof RadioButton) { int id = child.getId(); // generates an id if it's missing if (id == View.NO_ID) { id = View.generateViewId(); child.setId(id); } ((RadioButton) child).setOnCheckedChangeWidgetListener( mChildOnCheckedChangeListener); } if (mOnHierarchyChangeListener != null) { mOnHierarchyChangeListener.onChildViewAdded(parent, child); } } /** * {@inheritDoc} */ public void onChildViewRemoved(View parent, View child) { if (parent == RadioGroup.this && child instanceof RadioButton) { ((RadioButton) child).setOnCheckedChangeWidgetListener(null); } if (mOnHierarchyChangeListener != null) { mOnHierarchyChangeListener.onChildViewRemoved(parent, child); } } }}

 

这就是RadioGroup的源代码,加上凝视什么的一共400来行代码,所以不是非常多,然后就開始看源代码。当中一開始在init()中,有这么一个监听。 

mPassThroughListener = new PassThroughHierarchyChangeListener();        super.setOnHierarchyChangeListener(mPassThroughListener);

然后找到其相应的监听,

private class PassThroughHierarchyChangeListener implements            ViewGroup.OnHierarchyChangeListener {        private ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener;        /**         * {@inheritDoc}         */        public void onChildViewAdded(View parent, View child) {            if (parent == RadioGroup.this && child instanceof RadioButton) {                int id = child.getId();                // generates an id if it's missing                if (id == View.NO_ID) {                    id = View.generateViewId();                    child.setId(id);                }                ((RadioButton) child).setOnCheckedChangeWidgetListener(                        mChildOnCheckedChangeListener);            }            if (mOnHierarchyChangeListener != null) {                mOnHierarchyChangeListener.onChildViewAdded(parent, child);            }        }        /**         * {@inheritDoc}         */        public void onChildViewRemoved(View parent, View child) {            if (parent == RadioGroup.this && child instanceof RadioButton) {                ((RadioButton) child).setOnCheckedChangeWidgetListener(null);            }            if (mOnHierarchyChangeListener != null) {                mOnHierarchyChangeListener.onChildViewRemoved(parent, child);            }        }    }

这个监听继承了ViewGroup.OnHierarchyChangeListener接口。你通过查资料你就会发现,这个监听接口是对其 层次结构的监听,不像
onMeasure或onLayout,他仅仅有在层次结构发生变化时,也就是说在加入view和移除view的时候才会调用,所以他有两个回调方法。onChildViewAdded和onChildViewRemoved。

在初始化的时候,子布局是一个一个的被加入到RadioGroup,所以调用onChildViewAdded,能够得带其相应的孩子。就能够对其设置监听了。

这样设置就不会出现反复运行等问题。

 

然后这一步攻克了就好说了。下一把就是我们触发监听后,要这几个控件协调控制,由于仅仅有一个是能被选中。所以在监听的时候我们应该去改变子控件的状态等。

这一步就不细说了,应该都会顺着理清楚,就是仅仅保持一个被选中就能够。附上代码,就是依据需求略微修改了一下RadioGroup

 

public class RechargeValueGroup extends LinearLayout {	private ArrayList
tabChildsId = new ArrayList
(); private OnItemTabClickListener listener; private PassThroughHierarchyChangeListener mPassThroughListener; private CheckedStateTracker mChildOnCheckedChangeListener; /** * 记录当前id,默认id为-1 */ private int mCheckedId = -1; public RechargeValueGroup(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } public RechargeValueGroup(Context context, AttributeSet attrs) { super(context, attrs); init(); } public RechargeValueGroup(Context context) { super(context); } private void init() { // radiobutton的监听 mChildOnCheckedChangeListener = new CheckedStateTracker(); // 层次结构的监听 mPassThroughListener = new PassThroughHierarchyChangeListener(); // 设置监听 super.setOnHierarchyChangeListener(mPassThroughListener); } /** * 设置tab数据 * * @param datas */ public void setDataOfTabs(List
datas) { Log.i("TAG2","getChildCount()===>>>"+getChildCount()); Log.i("TAG2","datas()===>>>"+datas.size()); int count = 0; if (datas.size() >= getChildCount()) { count = getChildCount();// return; }else{ count = datas.size(); } for (int i = 0; i < count; i++) { Log.i("TAG2","data=1111==>>>"); RechargeValueLayout view = (RechargeValueLayout) findViewById(tabChildsId.get(i)); RechargeNumInfo data = datas.get(i); Log.i("TAG2","data===>>>"+data); view.setMoneyValue(data.chargeNum); view.setCordsValue(data.gzyNum); view.setZengsValue(data.giftNum); } } /** * {@inheritDoc} */ @Override protected void onFinishInflate() { super.onFinishInflate(); Log.i("TAG2", "onFinishInflate=111==>>>>"); check(mCheckedId); } /** * 改变item的选择状态 * * @param viewId * @param checked * true 为选择。false 为不选择 */ private void setCheckedStateForView(int viewId, boolean checked) { Log.i("TAG2", "setCheckedStateForView====>>>"); View checkedView = findViewById(viewId); Log.i("TAG2", "setCheckedStateForView===checkedView=>>>" + checkedView); if (checkedView != null && checkedView instanceof RechargeValueLayout) { ((RechargeValueLayout) checkedView).setChecked(checked); Log.i("TAG2", "setCheckedStateForView===checkedView=111>>>" + checkedView); } } public void check(int id) { // don't even bother Log.i("TAG2", "check=000======>>>" + id); Log.i("TAG2", "check=000=11=====>>>" + mCheckedId); if (id != -1 && (id == mCheckedId)) { Log.i("TAG2", "check=111======>>>" + id); return; } if (mCheckedId != -1) { Log.i("TAG2", "check=222======>>>" + id); setCheckedStateForView(mCheckedId, false); } if (id != -1) { Log.i("TAG2", "check=333======>>>" + id); setCheckedStateForView(id, true); } setCheckedId(id); } /** * 选择Item后要运行的操作 * * @param id */ private void setCheckedId(int id) { // 更新当前选择的Item的id mCheckedId = id; if (listener != null) { RechargeValueLayout view = (RechargeValueLayout)findViewById(id); listener.onItemClick(this, id,view.getMoneyValue()); } } /** * 设置点击item的监听 * * @param l */ public void setOnItemTabClickListener(OnItemTabClickListener l) { this.listener = l; } /** * item选择监听 Title: RechargeValueGroup.java Description: * * @author Liusong * @date 2015-6-26 * @version V1.0 */ public interface OnItemTabClickListener { public void onItemClick(RechargeValueGroupview, int checkedId,String money); } /** * 图层变换监听 Title: RechargeValueGroup.java Description: * * @author Liusong * @date 2015-6-26 * @version V1.0 */ private class PassThroughHierarchyChangeListener implements ViewGroup.OnHierarchyChangeListener { private ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener; /** * {@inheritDoc} */ public void onChildViewAdded(View parent, View child) { if (parent == RechargeValueTabHost.this && child instanceof RechargeValueLayout) { int id = child.getId();// Log.i("TAG2", "onChildViewAdded=111==>>>>" + id); // generates an id if it's missing if (id == View.NO_ID) { id = View.generateViewId(); child.setId(id); } tabChildsId.add(id); ((RechargeValueLayout) child) .setOnClickListener(mChildOnCheckedChangeListener); } if (mOnHierarchyChangeListener != null) { mOnHierarchyChangeListener.onChildViewAdded(parent, child); } } /** * {@inheritDoc} */ public void onChildViewRemoved(View parent, View child) { if (parent == RechargeValueTabHost.this && child instanceof RechargeValueLayout) { ((RechargeValueLayout) child).setOnClickListener(null); tabChildsId.remove(child.getId()); }// Log.i("TAG2", "onChildViewRemoved=111==>>>>" + child.getId()); if (mOnHierarchyChangeListener != null) { mOnHierarchyChangeListener.onChildViewRemoved(parent, child); } } } /** * 每一项Item的点击事件 Title: RechargeValueGroup.java Description: * * @author Liusong * @date 2015-6-26 * @version V1.0 */ class CheckedStateTracker implements OnClickListener { @Override public void onClick(View v) {// setCheckedId(v.getId()); check(v.getId()); } };// /**// * Item的详细数据值 Title:
RechargeValueGroup.java Description:// * // * @author Liusong// * @date 2015-6-26// * @version V1.0// */// class RechargeValueBean {// public int zengs;// public int money;// public int cords;// }}

就上上面的代码,因为我是使用的在Xml里面加入子控件,所以就没写addView方法,有兴趣的能够自己写一下addview方法。

然后,我有加了一个public void setDataOfTabs(List<RechargeNumInfo> datas)这种方法,就是把得到的数据直接付给这个控件。这样,就会自己主动把全部子控件附上值。

这样比較方便。由于数据是从server拿到的,使用Gson工具类,直接把数据封装成了集合。仅仅要把集合传入就可实现自己主动赋值。很方便,自己不须要一个一个的去赋值了。

 

依据RadioCroup改动的,仅仅要依据不同的情况稍作改动就能够满足非常多情况,比如。我们常见的底部导航。tab选择等等,仅仅要我们稍把不同的item子控件改动一下,我们就会非常快的实现一个单选样式的button组。

 

用法也非常easy。在代码中

mRechargeGroup= (RechargeValueGroup) findViewById(R.id.rechargeGroup);  mRechargeGroup.setOnItemTabClickListener(new OnItemTabClickListener() {   @Override   public void onItemClick(RechargeValueGroupview, int checkedId,String money) {    // TODO Auto-generated method stub    Log.i("TAG2", "checkedId===>>>"+checkedId);    realPrice = money;   }     });

找到控件设置监听,然后回掉回来各种參数,id等,我们也能够依据自己的需求去改动OnItemTabClickListener监听接口中的onItemClick传递的參数来满足自己的需求,

然后我们在适当的地方调用setDataOfTabs(List<RechargeNumInfo> datas)这种方法来设置数据就好了。

xml里面,就是上面的那段代码

就这么简单,大家能够在这个基础上来进行其它扩展什么的。

 

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