在這篇部落格之前,還寫了一篇關於PopupWindow，那篇主要是關於PopupWindow彈出位置的設定。以及選擇PopupWindow佈局後的監聽。詳情看Android popupwindow 示例程式一。接下來這篇主要是講自定義PopupWindow以及引數傳遞與返回，我在裡面寫了一個listview來示例。接下來看程式碼，都有所註釋。

一、MainActivity

<span style="background-color: rgb(240, 240, 240);">package com.example.popupwimdow;</span>
import java.util.ArrayList;

import com.example.popupwimdow.TestPopwindow2.OnGetData;
import android.os.Bundle;
import android.app.Activity;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.PopupWindow.OnDismissListener;
import android.widget.Toast;

/**
 * 
 * @author mmsx
 * 博主部落格網址: http://blog.csdn.net/qq_16064871
 */
public class MainActivity extends Activity implements OnClickListener,
		OnDismissListener {

	private ArrayList<ItemTest> mArrayList = new ArrayList<ItemTest>();
	private TestPopwindow2 mTestPopwindow2 = null;
	private int mnSeclectItem = 0;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		InitUI();

	}

	private void InitUI() {
		if (mArrayList != null) {
			mArrayList.clear();
			for (int i = 0; i < 3; i++) {
				ItemTest itemTest1 = new ItemTest(R.drawable.bmp1, "圖片一");
				mArrayList.add(itemTest1);
				ItemTest itemTest2 = new ItemTest(R.drawable.bmp2, "圖片二");
				mArrayList.add(itemTest2);
			}
		}

		// 例項化TestPopwindow2
		mTestPopwindow2 = new TestPopwindow2(this);
		// 設定點選其他位置mTestPopwindow2消失
		mTestPopwindow2.setOnDismissListener(this);

		Button buttonTest2 = (Button) findViewById(R.id.buttonTest2);
		buttonTest2.setOnClickListener(this);
	}

	private void OnPopwindowTest2() {
		if (mTestPopwindow2 == null)
			return;
		
		//回到接受
		mTestPopwindow2.setOnData(new OnGetData() {

			//記錄上一次選中的item
			@Override
			public int onSeclectItem() {
				return mnSeclectItem;
			}

			//回撥接受函式
			@Override
			public void onDataCallBack(int nSectlect,ArrayList<ItemTest> mArrayList) {
				Toast.makeText(getApplicationContext(),
						"listview 的點選" + String.valueOf(nSectlect),
						Toast.LENGTH_SHORT).show();
				mnSeclectItem = nSectlect;
			}

			//傳遞資料來源過去
			@Override
			public ArrayList<ItemTest> onArrayList() {
				return mArrayList;
			}
		});

		// location獲得控制元件的位置
		int[] location = new int[2];
		View v = findViewById(R.id.buttonTest2);
		if (v != null)
			v.getLocationOnScreen(location); // 控制元件在螢幕的位置
		mTestPopwindow2.setAnimationStyle(R.style.AppBaseTheme);

		// mTestPopwindow2彈出在某控制元件(button)的下面
		mTestPopwindow2.showAtLocation(v, Gravity.TOP | Gravity.LEFT,
				location[0] - v.getWidth(), location[1] + v.getHeight());
	}

	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.buttonTest2:
			OnPopwindowTest2();
			break;
		default:
			break;
		}
	}

	// 點選其他地方消失
	@Override
	public void onDismiss() {
	}
}
 

package com.example.popupwimdow;

import java.util.ArrayList;

import android.app.ActionBar.LayoutParams;
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.BitmapDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.TextView;

/**
 * 自定義TestPopwindow2
 * @author mmsx
 * 博主部落格網址: http://blog.csdn.net/qq_16064871
 */
public class TestPopwindow2 extends PopupWindow implements OnItemClickListener{
	// 根檢視
	private View mRootView;
	private LayoutInflater mInflater;

	// ArrayList陣列，listview原始資料
	private ArrayList<ItemTest> mArrayList;

	// 資料介面
	OnGetData mOnGetData;

	// listview介面卡
	SelfTypeAdapt mSelfTypeAdapt;

	private int mnSeclectItem = 0;

	public TestPopwindow2(Activity context) {
		super(context);

		InitData(context);
		InitUI();
	}

	// 資料介面設定,資料來源介面傳入
	public void setOnData(OnGetData sd) {
		mOnGetData = sd;
		mArrayList = new ArrayList<ItemTest>();
		if (mOnGetData != null) {
			mArrayList = mOnGetData.onArrayList();
			mnSeclectItem = mOnGetData.onSeclectItem();
		}
	}

	// 資料介面抽象方法
	public interface OnGetData {
		abstract ArrayList<ItemTest> onArrayList();

		abstract int onSeclectItem();

		abstract void onDataCallBack(int nSectlect,
				ArrayList<ItemTest> mArrayList);
	}

	private void InitData(Context context) {
		mInflater = (LayoutInflater) context
				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		mRootView = mInflater.inflate(R.layout.test_popwindow_2, null);
		setContentView(mRootView);

		this.setWidth(LayoutParams.FILL_PARENT);
		this.setHeight(LayoutParams.WRAP_CONTENT);

		// 設定PopUpWindow彈出的相關屬性
		setTouchable(true);
		setOutsideTouchable(true);
		setFocusable(true);
		setBackgroundDrawable(new BitmapDrawable(context.getResources()));
		update();

		getContentView().setFocusableInTouchMode(true);
		getContentView().setFocusable(true);
		setAnimationStyle(R.style.AppBaseTheme);
	}

	private void InitUI() {
		ListView listView = (ListView) mRootView
				.findViewById(R.id.listView1);
		mSelfTypeAdapt = new SelfTypeAdapt(mRootView.getContext());
		listView.setAdapter(mSelfTypeAdapt);
		listView.setOnItemClickListener(this);
	}

	public class SelfTypeAdapt extends BaseAdapter {
		private Context mContext;
		private LayoutInflater mLayoutInflater;

		public SelfTypeAdapt(Context context) {
			mContext = context;
			mLayoutInflater = (LayoutInflater) mContext
					.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		}

		@Override
		public int getCount() {
			return mArrayList == null ? 0 : mArrayList.size();
		}

		@Override
		public Object getItem(int position) {
			return position;
		}

		@Override
		public long getItemId(int position) {
			return 0;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			ViewHolder viewHolder = null;
			if (convertView == null) {
				viewHolder = new ViewHolder();
				convertView = (LinearLayout) mLayoutInflater.inflate(
						R.layout.listview_item, null);
				viewHolder.textView = (TextView) convertView
						.findViewById(R.id.textViewTest);
				viewHolder.imageView = (ImageView) convertView
						.findViewById(R.id.imageView1);

				convertView.setTag(viewHolder);
			} else {
				viewHolder = (ViewHolder) convertView.getTag();
			}

			ItemTest itemTest = new ItemTest();
			itemTest = mArrayList.get(position);

			viewHolder.textView.setText(itemTest.getImageViewID());
			viewHolder.imageView.setImageResource(itemTest.getImageViewID());
			return convertView;
		}
	}

	// 內部類實現，提升listview效率
	class ViewHolder {
		public ImageView imageView;
		public TextView textView;
	}

	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position,
			long id) {
		mOnGetData.onDataCallBack(position, mArrayList);
	    dismiss();
		
	}
}
 

package com.example.popupwimdow;

/**
 * 實體類 ItemTest
 * @author mmsx
 * 博主部落格網址: http://blog.csdn.net/qq_16064871
 */
public class ItemTest {
	private int mImageViewID;
	private String mstrName;
	
	public ItemTest(){
		
	}
	
	public ItemTest(int ImageViewID, String strName) {
		this.mImageViewID = ImageViewID;
		this.mstrName = strName;
	}
	
	public int getImageViewID() {
		return mImageViewID;
	}
	
	public String getstrName() {
		return mstrName;
	}
}
 

1、activity_main

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayoutMain"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="right">
        
    <Button
        android:id="@+id/buttonTest2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="測試2" />
    </LinearLayout>

</LinearLayout>

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#00ff" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
    </ListView>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:descendantFocusability="blocksDescendants"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:src="@drawable/bmp1" />

    <TextView
        android:id="@+id/textViewTest"
        android:layout_width="0dp"
        android:layout_height="50dp"
        android:layout_weight="1"
        android:gravity="center"
        android:text="TextView"
        android:textColor="#FF236A9C" />

</LinearLayout>

五、實現效果

專案資源下載:
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如有轉載未註明出處部落格網址，或者沒有得到作者的同意。作者持有版權所有權。