android - 是否可以创建可点击的类似 Toast 的通知？

Question

我需要显示一个最小侵入性的非阻塞通知，它不与其显示的 Activity 相关(如 Toast)和这是可点击的。任何人都知道这是否可能？不幸的是，似乎 Toast通知(自定义或其他)不可点击(即在其 View 上设置 OnClickListener 无效)。我知道的所有替代方案(即 AlertDialog 、 PopupWindow 和 Crouton )似乎都显示了一个与其显示的 Activity 相关的通知(即当 Activity 结束时它们不会继续显示).有什么建议吗？

Answer 1

您可以使用 PopupWindow，添加一个 onClickListener 并添加一个 handler 以在 n 次后自动取消它(就像 toast )。像这样:

public static void showToast(Activity a, String title, String message) {

    // inflate your xml layout
    LayoutInflater inflater = a.getLayoutInflater();
    View layout = inflater.inflate(R.layout.custom_toast,
            (ViewGroup) a.findViewById(R.id.toast_layout_root));

    // set the custom display
    ((TextView) layout.findViewById(R.id.title)).setText(title);
    ((TextView) layout.findViewById(R.id.message)).setText(message);

    // initialize your popupWindow and use your custom layout as the view
    final PopupWindow pw = new PopupWindow(layout,
            LinearLayout.LayoutParams.WRAP_CONTENT,
            LinearLayout.LayoutParams.WRAP_CONTENT, true);

    // set windowType to TYPE_TOAST (requires API 23 above)
    // this will make popupWindow still appear even the activity was closed
    pw.setWindowLayoutType(WindowManager.LayoutParams.TYPE_TOAST);
    pw.showAtLocation(layout, Gravity.CENTER | Gravity.TOP, 0, 500);

    // handle popupWindow click event
    layout.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            // do anything when popupWindow was clicked
            pw.dismiss(); // dismiss the window
        }
    });

    // dismiss the popup window after 3sec
    new Handler().postDelayed(new Runnable() {
        public void run() {
            pw.dismiss();
        }
    }, 3000);
}

xml布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:id="@+id/toast_layout_root"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:background="#000"
              android:orientation="vertical"
              android:elevation="10dp"
              android:padding="20dp">

    <TextView
        android:id="@+id/title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textColor="#FFF"
        android:textStyle="bold"/>

    <TextView
        android:id="@+id/message"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textColor="#FFF"/>

</LinearLayout>