PopupWindow和Fragment的使用

最新推荐文章于 2025-05-15 16:47:28 发布

一朵小红花（bj）

最新推荐文章于 2025-05-15 16:47:28 发布

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本文链接：https://blog.youkuaiyun.com/luzhiquanandroid/article/details/51676095

本文介绍了一个Android应用中使用PopupWindow显示菜单并实现不同Fragment切换的示例。通过按钮触发弹出窗口，用户可以选择不同的选项来加载相应的Fragment页面。

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关键代码

package com.zklz.pop;

import android.app.Activity;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.PopupWindow;
import android.widget.RelativeLayout;

/**
* 如果使用V4包需呀继承FragmentActivity 获取管理器：getSupportFragmentManager()
*
* 获取Fragment的上下文就是getActivity
*
* @author Administrator
*
*/

public class MainActivity extends Activity implements OnClickListener {
private Button btn;
private FragmentManager manager = getFragmentManager();
private FragmentTransaction ft;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.btn);
btn.setOnClickListener(this);
}

public void onClick(View v) {
View view = View.inflate(this, R.layout.pop_list_item, null);
final PopupWindow popupWindow = new PopupWindow(view,
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, true);
popupWindow.setOutsideTouchable(true);
popupWindow.setFocusable(true);
popupWindow.setBackgroundDrawable(new BitmapDrawable());
RelativeLayout one = (RelativeLayout) view.findViewById(R.id.one);
RelativeLayout two = (RelativeLayout) view.findViewById(R.id.two);
RelativeLayout three = (RelativeLayout) view.findViewById(R.id.three);
one.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
OneFragment one = new OneFragment();
ft = manager.beginTransaction();
ft.replace(R.id.comment, one);
ft.commit();
popupWindow.dismiss();
}
});
two.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
TwoFragment two = new TwoFragment();
ft = manager.beginTransaction();
ft.replace(R.id.comment, two);
ft.commit();
popupWindow.dismiss();
}
});
three.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
ThreeFragment three = new ThreeFragment();
ft = manager.beginTransaction();
ft.replace(R.id.comment, three);
ft.commit();
popupWindow.dismiss();
}
});
popupWindow.showAsDropDown(v);
}
}