自定义PopupWindow2

上一节的PopupWindow基本能用
更通用一点的看下面，不过一行显示多少个小球需要gridView.setNumColumns(8)设定一下，这里我没抽成动态的，具体看源码：

package com.dl.view;import android.content.Context;import android.graphics.drawable.BitmapDrawable;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.LinearLayout.LayoutParams;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.GridView;import android.widget.PopupWindow;import android.widget.TextView;import com.dl.app.R;public class NumbersPickerPopupWindow extends PopupWindow{private Context context;private String[] balls;private final String split=" "; private Button btn_ok;private String selectedNumbers;private String[] selectedNumbersArray;private GridViewAdapter adapter;/** *  * @param context * @param view * @param title 标题 * @param balls 生成的小球 * @param selectedNumbers 预选的小球 */public NumbersPickerPopupWindow(Context context,View view,String title,String[] balls,String selectedNumbers){super(view, LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT, true);this.context=context;this.selectedNumbers=selectedNumbers;this.balls=balls;selectedNumbersArray=selectedNumbers.trim().split(split);this.setBackgroundDrawable(new BitmapDrawable());//必须设置background才能消失  this.setOutsideTouchable(false);              //自定义动画        this.setAnimationStyle(R.style.PopupAnimation);      //使用系统动画  //      mPopupWindow.setAnimationStyle(android.R.style.Animation_Dialog);        this.update();        this.setTouchable(true);      this.setFocusable(false);            GridView gridView=(GridView)view.findViewById(R.id.gridView);//      gridView.setNumColumns(8);      adapter=new GridViewAdapter(context);            gridView.setAdapter(adapter);            TextView tv_tips=(TextView)view.findViewById(R.id.tv_tips);      tv_tips.setText(title);            btn_ok=(Button)view.findViewById(R.id.btn_ok);      btn_ok.setOnClickListener(new View.OnClickListener() {public void onClick(View v) {// TODO Auto-generated method stubif(isShowing())dismiss();//if(onOkClickListener!=null){//onOkClickListener.onOkClick(v);//}}});            this.setOnDismissListener(onDismissListener);      }private OnDismissListener onDismissListener=new OnDismissListener(){public void onDismiss() {// TODO Auto-generated method stubif(onOkClickListener!=null){onOkClickListener.onOkClick(btn_ok);}}};public void setSelectedNumbers(String selectedNumbers){this.selectedNumbers=selectedNumbers;selectedNumbersArray=selectedNumbers.trim().split(split);adapter.notifyDataSetChanged();}class GridViewAdapter extends BaseAdapter{private Context context;    public GridViewAdapter(Context context){    this.context=context;    }    public int getCount() {// TODO Auto-generated method stubreturn balls.length;}public Object getItem(int position) {// TODO Auto-generated method stubreturn balls[position];}public long getItemId(int position) {// TODO Auto-generated method stubreturn position;}public View getView(int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubif(convertView==null){convertView=LayoutInflater.from(context).inflate(R.layout.simple_grid_item_1_red, null);}CheckBox checkBox = (CheckBox)convertView.findViewById(R.id.checkBox);//checkBox.setText(balls[position]);if(selectedNumbersArray!=null&&selectedNumbersArray.length>0){for(int i=0;i<selectedNumbersArray.length;i++){if(selectedNumbersArray[i].equals(balls[position])){checkBox.setChecked(true);}}}checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(onItemCheckedListener!=null){onItemCheckedListener.onItemCheckedChanged(buttonView,isChecked);}}});return convertView;}}//接口private OnItemCheckedListener onItemCheckedListener;public void setOnItemCheckedListener(OnItemCheckedListener onItemCheckedListener) {this.onItemCheckedListener = onItemCheckedListener;}public interface OnItemCheckedListener{public void onItemCheckedChanged(CompoundButton buttonView, boolean isChecked);}private OnOkClickListener onOkClickListener;public void setOnOkClickListener(OnOkClickListener onOkClickListener) {this.onOkClickListener = onOkClickListener;}public interface OnOkClickListener{public void onOkClick(View v);}}

用法：

LayoutInflater mLayoutInflater = (LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);      View view = mLayoutInflater.inflate(R.layout.popwindow2, null);  tips="至少选择1个数字";balls=new String[]{"1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26"};selectedNumbers="4 7 24";//空格隔开！picker=new NumbersPickerPopupWindow(context,view,tips,balls,selectedNumbers);picker.setOnItemCheckedListener(onItemCheckedListener);picker.setOnOkClickListener(onOkClickListener);if(!picker.isShowing()){picker.showAtLocation(views[index], Gravity.BOTTOM, 0, 0);}