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Android:实现类似RadioButton自动换行及单选效果

时间:2013-07-16 14:59来源:www.chengxuyuans.com 点击:

代码简介

最近做一个项目,有很多项需要单选,但android上RadioGroup不能实现RadioButton自动换行的效果,于是通过另一种方式来实现类似效果

代码片段

package com.dq.slidemenu;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.GridView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

public class SearchMovieActivity extends Activity {
	private GridView gridViewType;
	private GridView gridViewArea;
	private GridView gridViewTime;
	private TextView title;
	private Button back;
	private Button rightBT;
	private OnClickListener MyOnClickListener;
	private SimpleAdapter adater1;
	private SimpleAdapter adater2;
	private SimpleAdapter adater3;
	private ArrayList<HashMap<String, Object>> mList1;
	private ArrayList<HashMap<String, Object>> mList2;
	private ArrayList<HashMap<String, Object>> mList3;
	private static final int listContent1[] = {R.string.search_type_all,R.string.search_type_love,
		R.string.search_type_biography,R.string.search_type_cartoon,R.string.search_type_action,
		R.string.search_type_ancient,R.string.search_type_child,R.string.search_type_dance,
		R.string.search_type_family,R.string.search_type_frightened,R.string.search_type_terror,
		R.string.search_type_fiction,R.string.search_other};
	private static final int listContent2[] = {R.string.search_type_all,R.string.search_area_china,
		R.string.search_area_china_hk,R.string.search_area_usa,R.string.search_area_europe,
		R.string.search_area_kj,R.string.search_area_tailand,R.string.search_other};
	private static final int listContent3[] = {R.string.search_time_all,R.string.search_time_2013,
		R.string.search_time_2012,R.string.search_time_2011,R.string.search_time_2010,
		R.string.search_time_2000,R.string.search_time_90,R.string.search_time_other};
	private static final int TYPE_NUM = 13;
	private static final int AREA_NUM = 8;
	private static final int TIME_NUM = 8;
	private int typeLastItem = 0;
	private int areaLastItem = 0;
	private int timeLastItem = 0;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		initMainUI();
		initMainUIListener();
	}
	
	private void initMainUI() {
		setContentView(R.layout.activity_search2);
		title = (TextView)findViewById(R.id.title_activity);
		if (title != null) {
			title.setText(R.string.search_movie);
		}
		back = (Button)findViewById(R.id.back);
		if (back != null) {
			back.setVisibility(View.VISIBLE);
		}
		rightBT = (Button)findViewById(R.id.rightBT);
		if (rightBT != null) {
			rightBT.setVisibility(View.VISIBLE);
			rightBT.setText(R.string.search);
		}
		initGridViewOne();
		initGridViewTwo();
		initGridViewThree();
	}
	
	private void initGridViewOne() {
		gridViewType = (GridView)findViewById(R.id.search_type);
		mList1 = new ArrayList<HashMap<String, Object>>();
		for (int i = 0; i < TYPE_NUM; i++) {
			HashMap<String, Object> map = new HashMap<String, Object>();
			map.put("radioIcon", R.drawable.radiobutton_off);
			map.put("radioText", getString(listContent1[i]));
			mList1.add(map);
		}
		adater1 = new SimpleAdapter(getApplicationContext(), mList1, R.layout.search_grid_item, 
				new String[]{"radioIcon","radioText"}, new int[]{R.id.item_RadioImg,R.id.item_RadioText});
		if (gridViewType != null) {
			gridViewType.setAdapter(adater1);
			gridViewType.requestFocus();
			gridViewType.setOnItemClickListener(new MyTypeOnItemClick());
		}
	}
	
	private void initGridViewTwo() {
		gridViewArea = (GridView)findViewById(R.id.search_area);
		mList2 = new ArrayList<HashMap<String, Object>>();
		for (int i = 0; i < AREA_NUM; i++) {
			HashMap<String, Object> map = new HashMap<String, Object>();
			map.put("radioIcon", R.drawable.radiobutton_off);
			map.put("radioText", getString(listContent2[i]));
			mList2.add(map);
		}
		adater2 = new SimpleAdapter(getApplicationContext(), mList2, R.layout.search_grid_item, 
				new String[]{"radioIcon","radioText"}, new int[]{R.id.item_RadioImg,R.id.item_RadioText});
		if (gridViewArea != null) {
			gridViewArea.setAdapter(adater2);
			gridViewArea.requestFocus();
			gridViewArea.setOnItemClickListener(new MyAreaOnItemClick());
		}
	}
	
	private void initGridViewThree() {
		gridViewTime = (GridView)findViewById(R.id.search_time);
		mList3 = new ArrayList<HashMap<String, Object>>();
		for (int i = 0; i < TIME_NUM; i++) {
			HashMap<String, Object> map = new HashMap<String, Object>();
			map.put("radioIcon", R.drawable.radiobutton_off);
			map.put("radioText", getString(listContent3[i]));
			mList3.add(map);
		}
		adater3 = new SimpleAdapter(getApplicationContext(), mList3, R.layout.search_grid_item, 
				new String[]{"radioIcon","radioText"}, new int[]{R.id.item_RadioImg,R.id.item_RadioText});
		if (gridViewTime != null) {
			gridViewTime.setAdapter(adater3);
			gridViewTime.requestFocus();
			gridViewTime.setOnItemClickListener(new MyTimeOnItemClick());
		}
	}
	
	private void goToSearch() {		
		LayoutInflater inflater = (LayoutInflater)getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);
		View layout = inflater.inflate(R.layout.search_result, null);
		setContentView(layout);
		title = (TextView)layout.findViewById(R.id.title_activity);
		if (title != null) {
			title.setText(R.string.search_result);
		}
		back = (Button)layout.findViewById(R.id.back);
		if (back != null) {
			back.setVisibility(View.VISIBLE);
			back.setOnClickListener(new OnClickListener(){

				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					finish();
				}
				
			});
		}
	}
	
	private void initMainUIListener() {
		MyOnClickListener = new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				switch(v.getId()) {
				case R.id.back:
					finish();
					break;
				case R.id.rightBT:
					goToSearch();
					break;
				default:
					break;
				}
			}
		};
		if (back != null) {
			back.setOnClickListener(MyOnClickListener);
		}
		if (rightBT != null) {
			rightBT.setOnClickListener(MyOnClickListener);
		}
	}
	
	private void changeItemImg(SimpleAdapter sa, int selectedItem, boolean isOn) {
		HashMap<String, Object> map = (HashMap<String, Object>)sa.getItem(selectedItem);
		if (isOn) {
			map.put("radioIcon", R.drawable.radiobutton_on);
		} else {
			map.put("radioIcon", R.drawable.radiobutton_off);
		}
		sa.notifyDataSetChanged();
	}
	
	private class MyTypeOnItemClick implements OnItemClickListener {

		@Override
		public void onItemClick(AdapterView<?> parent, View view, int position,
				long id) {
			// TODO Auto-generated method stub
			System.out.println("search_type");
			if (typeLastItem != position) {
				if (typeLastItem >= 0) {
					changeItemImg(adater1, typeLastItem, false);
				}				
			}
			typeLastItem = position;
			changeItemImg(adater1, position, true);	
			HashMap<String, Object> map = (HashMap<String, Object>)adater1.getItem(position);
			String typeStr = (String)map.get("radioText");
			System.out.println("Type string:"+typeStr);
		}		
	}
	
	private class MyAreaOnItemClick implements OnItemClickListener {

		@Override
		public void onItemClick(AdapterView<?> parent, View view, int position,
				long id) {
			// TODO Auto-generated method stub			
			System.out.println("search_area");
			if (areaLastItem != position) {
				if (areaLastItem >= 0) {
					changeItemImg(adater2, areaLastItem, false);
				}				
			}
			areaLastItem = position;
			changeItemImg(adater2, position, true);
			HashMap<String, Object> map = (HashMap<String, Object>)adater2.getItem(position);
			String areaStr = (String)map.get("radioText");
			System.out.println("Area string:"+areaStr);
		}		
	}
	
	private class MyTimeOnItemClick implements OnItemClickListener {

		@Override
		public void onItemClick(AdapterView<?> parent, View view, int position,
				long id) {
			// TODO Auto-generated method stub			
			System.out.println("search_time");
			if (timeLastItem != position) {
				if (areaLastItem >= 0) {
					changeItemImg(adater3, timeLastItem, false);
				}				
			}
			timeLastItem = position;
			changeItemImg(adater3, position, true);
			HashMap<String, Object> map = (HashMap<String, Object>)adater3.getItem(position);
			String timeStr = (String)map.get("radioText");
			System.out.println("Time string:"+timeStr);
		}		
	}
	
}

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