Android 流式布局 RadioGroup
发布时间:2020-12-15 03:21:07 所属栏目:Java 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 1.使用方法 package com.example.radiogroup;import java.util.ArrayList;import java.util.List;import android.os.Bundle;import android.app.Activ
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考 1.使用方法package com.example.radiogroup; import java.util.ArrayList; import java.util.List; import android.os.Bundle; import android.app.Activity; import android.graphics.Color; import android.view.ViewGroup.LayoutParams; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.RadioGroup.OnCheckedChangeListener; public class MainActivity extends Activity { private SelfRadioGroup mRadioLayout; private List<String> mSelectDataList; private RadioButton radioButton; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mRadioLayout = (SelfRadioGroup) findViewById(R.id.items_parent_Single); initList(); //根据内容的数量添加RadioButton for (int i = 0; i < mSelectDataList.size(); i++) { radioButton = new RadioButton(this); radioButton.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)); radioButton.setTextColor(Color.BLACK); radioButton.setText(mSelectDataList.get(i)); mRadioLayout.addView(radioButton); } mRadioLayout.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group,int checkedId) { int id = group.getCheckedRadioButtonId(); RadioButton by = (RadioButton) findViewById(id); System.out.println("选择的内容:"+by.getText()); } }); } /** * 获取RadioButton内容 */ private void initList() { mSelectDataList = new ArrayList<String>(); mSelectDataList.add("批发了贷款"); mSelectDataList.add("部件"); mSelectDataList.add("文明行政村"); mSelectDataList.add("单位综合检查"); mSelectDataList.add("单位"); mSelectDataList.add("事件"); mSelectDataList.add("门前三包"); mSelectDataList.add("批发了贷款"); mSelectDataList.add("批发"); } } <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" android:scrollbars="none"> <com.example.radiogroup.SelfRadioGroup android:id="@+id/items_parent_Single" android:layout_width="match_parent" android:layout_height="wrap_content" android:visibility="visible" /> </ScrollView> 2.自定义RadioGrouppackage com.example.radiogroup; import android.content.Context; import android.util.AttributeSet; import android.view.View; import android.widget.RadioGroup; /** * 自定义RadioGroup * @author ZhangZhaoCheng */ public class SelfRadioGroup extends RadioGroup { private Context mContext; public SelfRadioGroup(Context context) { super(context); mContext = context; } public SelfRadioGroup(Context context,AttributeSet attrs) { super(context,attrs); } @Override protected void onMeasure(int widthMeasureSpec,int heightMeasureSpec) { int height = 0; int width = 0; int rows = 0; /** * 获得此ViewGroup上级容器为其推荐的宽和高,以及计算模式 */ int widthMode = MeasureSpec.getMode(widthMeasureSpec); int heightMode = MeasureSpec.getMode(heightMeasureSpec); int sizeWidth = MeasureSpec.getSize(widthMeasureSpec); int sizeHeight = MeasureSpec.getSize(heightMeasureSpec); // 计算出所有的childView的宽和高 measureChildren(widthMeasureSpec,heightMeasureSpec); for (int index = 0; index < getChildCount(); index++) { final View child = this.getChildAt(index); width += child.getMeasuredWidth(); if (rows == 0) { height = Math.max(height,child.getMeasuredHeight()); } //如果数据的宽度大于整个屏幕的宽度 row行数++ if (width > sizeWidth) { rows++; height += child.getMeasuredHeight(); width = child.getMeasuredWidth(); } } setMeasuredDimension(sizeWidth,height); } @Override protected void onLayout(boolean arg0,int left,int top,int right,int bottom) { final int count = getChildCount(); int width = left; int height = top; int row = 0; int lastBottom = 0; for (int i = 0; i < count; i++) { final View child = this.getChildAt(i); int childWidth = child.getMeasuredWidth(); int childHeight = child.getMeasuredHeight(); int cl = 0,ct = 0,cr = 0,cb = 0; width += childWidth; if (row == 0) { height = childHeight; } if (width > right) { width = left + childWidth; height = lastBottom + childHeight; row++; } cl = width - childWidth; ct = height - childHeight; cr = width; cb = height; child.layout(cl,ct,cr,cb); lastBottom = cb; } } } 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |