记录一个小功能，使用场景，列表项点击弹出

如图：

java类代码：

public class PopupUtil extends PopupWindow {private Activity context;private View view;private ListView listView;private TextView m_tv_reminderm, m_tv_Wallpaper_List;private ArrayList<String> arrayList;private String txtContent;public PopupUtil(Activity context, View parent,String txt) {super(context);this.context = context;this.txtContent=txt;//设置弹窗大小setWidth(300);setHeight(400);//设置可以获得焦点setFocusable(true);//设置弹窗内可点击setTouchable(true);//设置弹窗外可点击setOutsideTouchable(true);//背景setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));// setBackgroundDrawable(new BitmapDrawable());//加载弹窗布局view = LayoutInflater.from(context).inflate(R.layout.popu_menu, null);setContentView(view);//建立弹窗内容initData();//显示弹窗, 第一个参数是PopupWindow的锚点，第二和第三个参数分别是PopupWindow相对锚点的x、y偏移showAsDropDown(parent, 0, 0);// showAtLocation(parent, Gravity.BOTTOM, 0, 0);}private void initData() {m_tv_reminderm = view.findViewById(R.id.tv_reminder);m_tv_Wallpaper_List = view.findViewById(R.id.tv_Wallpaper_List);m_tv_reminderm.setOnClickListener(new View.OnClickListener() {@RequiresApi(api = Build.VERSION_CODES.KITKAT)@Overridepublic void onClick(View v) {setNotfly();}});m_tv_Wallpaper_List.setOnClickListener(new View.OnClickListener() {@RequiresApi(api = Build.VERSION_CODES.KITKAT)@Overridepublic void onClick(View v) {Intent intent = new Intent(context, SetLockSrceenAct.class);intent.putExtra("itemName",txtContent);context.startActivity(intent);dismiss();context.finish();}});}@RequiresApi(api = Build.VERSION_CODES.KITKAT)private void setNotfly() {NotifitionDialog dlg = new NotifitionDialog(context);if (!NotifyManagerUtils.isNotifyEnabled(context)) {dlg.show(new PerDialog.CallbackListener() {@Overridepublic void onCancel() {}@Overridepublic void onGet() {NotifyManagerUtils.openNotificationSettingsForApp(context);}});} else {Intent intent = new Intent(context, SelTimeInFoAct.class);context.startActivity(intent);dismiss();context.finish();}}

对应的xml布局：

<?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="wrap_content"android:orientation="vertical"><LinearLayoutandroid:id="@+id/ll_show_more"android:layout_width="match_parent"android:layout_height="100dp"android:layout_gravity="right"android:background="@drawable/bg_popu_util"android:orientation="vertical"android:visibility="visible"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginHorizontal="0.5dp"android:layout_marginTop="14dp"android:background="#FFF0EEF6"><TextViewandroid:id="@+id/tv_reminder"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_gravity="center_vertical"android:textSize="12dp"android:padding="5dp"android:text="Reminder"android:textColor="#FF010101" /></LinearLayout><TextViewandroid:id="@+id/tv_Wallpaper_List"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_gravity="center_vertical"android:layout_marginHorizontal="5dp"android:layout_marginTop="16dp"
android:textSize="12dp"android:text="Lockscreen List"android:textColor="#FF010101" /></LinearLayout>
</LinearLayout>

最后出发按钮后的调用：

new PopupUtil(context, view,“name”);

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