android popupwindow 弹出窗口按钮事件

Posted 2023-05-04

public void poplooksee(View v) TextView tv = (TextView) view.findViewById(R.id.poptxtobjectid); String objectID = tv.getText().toString(); TextView tvrs = (TextView) view.findViewById(R.id.poprstype); String rstype = tvrs.getText().toString(); if (rstype.equalsIgnoreCase(Constants.MSELL)) Intent intent = new Intent(); intent.putExtra("objectId", objectID); intent.setClass(ManagerActivity.this, MHouseDetailActivity.class); view.getContext().startActivity(intent); finish(); overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out); else Intent intent = new Intent(); intent.putExtra("objectId", objectID); intent.setClass(ManagerActivity.this, MRentHouseDetailActivity.class); view.getContext().startActivity(intent); finish(); overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out); 这是popupwindow中按钮事件的方法，但是当弹出窗口的时候单击该按钮，总是报错

这个view不能写在这里，除非你调用这个方法传入的是MainActivity这种继承Activity的View
view.getContext().startActivity(intent); 参考技术A 报了什么错误 参考技术B 错误贴出来看看。你的代码看的眼花

Android 中PopupWindow弹出式窗口的使用

效果图如下：

实现代码如下：
activity_popup_window.xml按钮

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".PopupWindowActivity">

    <Button
        android:id="@+id/btn_popupWindow"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="PopupWindow" />
</LinearLayout>

自定义弹出的视图layout_pop.xml，也可以用RecycleView或者ListView

<?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="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/tv_good"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:paddingTop="8dp"
        android:paddingBottom="8dp"
        android:text="好"
        android:textColor="@color/gray"
        android:textSize="20sp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:background="@color/gray" />

    <TextView
        android:id="@+id/tv_not_too_bad"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:paddingTop="8dp"
        android:paddingBottom="8dp"
        android:text="还行"
        android:textColor="@color/gray"
        android:textSize="20sp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="0.5dp"
        android:background="@color/gray" />

    <TextView
        android:id="@+id/tv_bad"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:paddingTop="8dp"
        android:paddingBottom="8dp"
        android:text="不好"
        android:textColor="@color/gray"
        android:textSize="20sp" />
</LinearLayout>

PopupWindowActivity类实现代码如下：

public class PopupWindowActivity extends AppCompatActivity 
    private Button btn_popupWindow;
    private PopupWindow popupWindow;

    @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_popup_window);
        btn_popupWindow = findViewById(R.id.btn_popupWindow);
        btn_popupWindow.setOnClickListener(new View.OnClickListener() 
            @Override
            public void onClick(View view) 
                View popup_view = LayoutInflater.from(PopupWindowActivity.this).inflate(R.layout.layout_pop, null);
                TextView textView = popup_view.findViewById(R.id.tv_good);
                textView.setOnClickListener(new View.OnClickListener() 
                    @Override
                    public void onClick(View view) 
                        popupWindow.dismiss();
                        Toast.makeText(PopupWindowActivity.this, "好", Toast.LENGTH_SHORT).show();
                    
                );
                popupWindow = new PopupWindow(popup_view, btn_popupWindow.getWidth(), ViewGroup.LayoutParams.WRAP_CONTENT);
                //设置弹出窗口应该接收外部触摸事件
                popupWindow.setOutsideTouchable(true);
                //设置可聚焦
                popupWindow.setFocusable(true);
                popupWindow.showAsDropDown(btn_popupWindow);
            
        );
    

以上就是PopupWindow弹出式窗口的简单使用~