RadioGroup、RadioButton动态创建并定制icon显示

来源：互联网发布：淘宝2017年双11营业额编辑：程序博客网时间：2024/05/17 22:10

由于原生的Radiobutton不能满足业务需求，所以需要自己定制icon图片，和默认选中某一项。需要自己代码动态实现。废话不多说，上代码：

private void setViewData() {        radioGroup.removeAllViews();        int margin = ScreenUtil.dip2px(this, 14.0f);        int marginLeft = ScreenUtil.dip2px(this, 20.0f);        int paddingLeft = ScreenUtil.dip2px(this, 3.0f);        RadioGroup.LayoutParams layoutParams =                 new RadioGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);        RadioGroup.LayoutParams layoutParams1 =                 new RadioGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 1);        layoutParams.setMargins(marginLeft, margin, margin, margin);        layoutParams1.setMargins(margin, 0, margin, 0);        int defaultId = -1;        for (int i = 0; i < messageList.size(); i++) {            RadioButton rb = new RadioButton(this);            rb.setMaxLines(2);            rb.setPadding(paddingLeft, 0, 0, 0);            rb.setText(messageList.get(i).relayMessage);            rb.setButtonDrawable(android.R.color.transparent);            rb.setTextColor(Color.parseColor("#555555"));            rb.setButtonDrawable(null);// 去掉左边默认图标            rb.setCompoundDrawablePadding(margin);            rb.setEllipsize(TextUtils.TruncateAt.END);// 结尾处打点显示            Drawable drawable =                         getResources().getDrawable(R.drawable.relay_message_radio_selector);            drawable.setBounds(0, 0, drawable.getMinimumWidth(), drawable.getMinimumHeight());            rb.setCompoundDrawables(drawable, null, null, null);            // 手动生成id            int generateId = generateViewId();            messages.put(generateId, messageList.get(i).relayMessage);            rb.setId(generateId);            if (i == 0) {                defaultId = generateId;            }            TextView view = new TextView(this);            view.setBackgroundColor(Color.parseColor("#dddddd"));            radioGroup.addView(rb, layoutParams);            radioGroup.addView(view, layoutParams1);        }        // 此处：默认选中第一个        radioGroup.check(defaultId);    }

R.drawable.relay_message_radio_selector 代码如下：

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <!--设置自己的图片icon-->    <item android:drawable="@drawable/relay_radio_unchecked"         android:state_checked="false" />    <item android:drawable="@drawable/relay_radio_checked"         android:state_checked="true" /></selector>

效果如下图：

这里写图片描述

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