android--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>
