自定义popupwindow，仿spinner

package com.geniuseoe.spiner.demo; import java.util.ArrayList; import java.util.List; import com.geniuseoe.spiner.demo.widget.AbstractSpinerAdapter; import com.geniuseoe.spiner.demo.widget.SpinerPopWindow; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageButton; import android.widget.TextView; /** * * @author geniuseoe2012 * more brilliant��please pay attention to my csdn blog --> http://blog.csdn.net/geniuseoe2012 * android develop group ��298044305 */ public class SpinerWindowDemoActivity extends Activity implements OnClickListener, AbstractSpinerAdapter.IOnItemSelectListener{ /** Called when the activity is first created. */ private View mRootView; private TextView mTView; private ImageButton mBtnDropDown; private List<String> nameList = new ArrayList<String>(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); setupViews(); } private void setupViews(){ mRootView = findViewById(R.id.rootView); mTView = (TextView) findViewById(R.id.tv_value); mBtnDropDown = (ImageButton) findViewById(R.id.bt_dropdown); mBtnDropDown.setOnClickListener(this); String[] names = getResources().getStringArray(R.array.hero_name); for(int i = 0; i < names.length; i++){ nameList.add(names[i]); } mSpinerPopWindow = new SpinerPopWindow(this); mSpinerPopWindow.refreshData(nameList, 0); mSpinerPopWindow.setItemListener(this); } @Override public void onClick(View view) { switch(view.getId()){ case R.id.bt_dropdown: showSpinWindow(); break; } } private void setHero(int pos){ if (pos >= 0 && pos <= nameList.size()){ String value = nameList.get(pos); mTView.setText(value); } } private SpinerPopWindow mSpinerPopWindow; private void showSpinWindow(){ Log.e("", "showSpinWindow"); mSpinerPopWindow.setWidth(mTView.getWidth()); mSpinerPopWindow.showAsDropDown(mTView); } @Override public void onItemClick(int pos) { setHero(pos); } }