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  • popwindow

    java代码

     1 package com.example.myapplication;
     2   
     3 import androidx.appcompat.app.AppCompatActivity;
     4   
     5 import android.os.Bundle;
     6 import android.view.View;
     7 import android.view.ViewGroup;
     8 import android.widget.Button;
     9 import android.widget.PopupWindow;
    10 import android.widget.TextView;
    11 import android.widget.Toast;
    12   
    13 public class PopupActivity extends AppCompatActivity {
    14   
    15       private Button btn_popup;
    16       private PopupWindow mpopup;
    17   
    18     @Override
    19     protected void onCreate(Bundle savedInstanceState) {
    20         super.onCreate(savedInstanceState);
    21         setContentView(R.layout.activity_popup);
    22         btn_popup=findViewById(R.id.btn_popup);
    23         btn_popup.setOnClickListener(new View.OnClickListener() {
    24             @Override
    25             public void onClick(View view) {
    26                 View popview =getLayoutInflater().inflate(R.layout.layout_pop,null);
    27                 TextView textView1=popview.findViewById(R.id.shuxue);
    28                 textView1.setOnClickListener(new View.OnClickListener() {
    29                     @Override
    30                     public void onClick(View view) {
    31                         mpopup.dismiss();
    32                         Toast.makeText(PopupActivity.this,"数学课很好玩",Toast.LENGTH_SHORT).show();
    33                     }
    34                 });
    35                 TextView textView2=popview.findViewById(R.id.yuwen);
    36                 textView2.setOnClickListener(new View.OnClickListener() {
    37                     @Override
    38                     public void onClick(View view) {
    39                         Toast.makeText(PopupActivity.this,"语文课很好玩",Toast.LENGTH_SHORT).show();
    40                     }
    41                 });
    42                 TextView textView3=popview.findViewById(R.id.yingyu);
    43                 textView3.setOnClickListener(new View.OnClickListener() {
    44                     @Override
    45                     public void onClick(View view) {
    46                         Toast.makeText(PopupActivity.this,"英语课很好玩",Toast.LENGTH_SHORT).show();
    47                     }
    48                 });
    49                  mpopup=new PopupWindow(popview,btn_popup.getWidth(), ViewGroup.LayoutParams.WRAP_CONTENT);
    50                  mpopup.setOutsideTouchable(true);
    51                  mpopup.setFocusable(true);
    52                  mpopup.showAsDropDown(btn_popup);
    53             }
    54         });
    55     }
    56 }

    xml1代码

     1 <?xml version="1.0" encoding="utf-8"?>
     2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     3     android:layout_width="match_parent"
     4     android:layout_height="match_parent"
     5     android:orientation="vertical"
     6     android:padding="10dp">
     7   
     8     <Button
     9         android:id="@+id/btn_popup"
    10         android:layout_width="200dp"
    11         android:layout_height="wrap_content"
    12         android:text="最喜爱的科目"
    13         android:layout_gravity="center"
    14         android:layout_marginTop="200dp"/>
    15   
    16 </LinearLayout>

    xml2代码

     1 <?xml version="1.0" encoding="utf-8"?>
     2 <LinearLayout
     3     xmlns:android="http://schemas.android.com/apk/res/android"
     4     android:layout_width="match_parent"
     5     android:layout_height="match_parent"
     6     android:orientation="vertical"
     7     android:padding="15dp"
     8     android:background="@drawable/bg_dropdown">
     9     <TextView
    10         android:id="@+id/shuxue"
    11         android:layout_width="match_parent"
    12         android:layout_height="wrap_content"
    13         android:textSize="20sp"
    14         android:textColor="#000000"
    15         android:text="数学"
    16         android:gravity="center"
    17         android:layout_marginTop="8dp"
    18         android:layout_marginBottom="8dp"/>
    19     <View
    20         android:layout_width="match_parent"
    21         android:layout_height="0.5dp"
    22         android:background="#A9A9A9"/>
    23     <TextView
    24         android:id="@+id/yuwen"
    25         android:layout_width="match_parent"
    26         android:layout_height="wrap_content"
    27         android:textSize="20sp"
    28         android:textColor="#000000"
    29         android:text="语文"
    30         android:gravity="center"
    31         android:layout_marginTop="8dp"
    32         android:layout_marginBottom="8dp"/>
    33     <View
    34         android:layout_width="match_parent"
    35         android:layout_height="0.5dp"
    36         android:background="#A9A9A9"/>
    37     <TextView
    38         android:id="@+id/yingyu"
    39         android:layout_width="match_parent"
    40         android:layout_height="wrap_content"
    41         android:textSize="20sp"
    42         android:textColor="#000000"
    43         android:text="英语"
    44         android:gravity="center"
    45         android:layout_marginTop="8dp"
    46         android:layout_marginBottom="8dp"/>
    47   
    48 </LinearLayout>
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  • 原文地址:https://www.cnblogs.com/reddead/p/14164038.html
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