在Android应用中打开弹出窗口时发生异常

Question

尝试调用此方法时，出现以下异常。

MessageQueue回调中的异常：handleReceiveCallback 08-21 00：12：43.454 10843-10843 / common.barter.com.barterapp E / MessageQueue-JNI：android.view.InflateException：二进制XML文件第2行：在Android上夸大类的错误。 com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView（PhoneLayoutInflater.java:55）的android.view.LayoutInflater.onCreateView（LayoutInflater.java:682）的view.LayoutInflater.createView（LayoutInflater.java:633） android.view.LayoutInflater.inflate（LayoutInflater.java:482）上的.view.LayoutInflater.createViewFromTag（LayoutInflater.java:741）android.view.LayoutInflater上的.view.LayoutInflater.inflate（LayoutInflater.java:414）。充气（LayoutInflater.java:365）

public class GlobalHome extends ActionBarActivity{
----------------------
----------------------
private void showLocationPopup() {

    LayoutInflater inflater = (LayoutInflater)
            this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View layout = inflater.inflate(R.layout.popup_location,
            (ViewGroup) findViewById(R.id.layout_location_popup));
    PopupWindow pw = new PopupWindow(
            layout,
            100,
            100,
            true);
    // The code below assumes that the root container has an id called 'main'
    pw.showAtLocation(layout, Gravity.CENTER, 0, 0);

}
}

布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:padding="10dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@color/switch_thumb_material_light"
android:id="@+id/layout_location_popup"
>

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dip"
    android:text="Test Pop-Up"
    />

</LinearLayout>

Answer 1

将您的代码更改为：

private void showLocationPopup() {

    LayoutInflater inflater = (LayoutInflater)
            getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View layout = inflater.inflate(R.layout.popup_location,(ViewGroup) getActivity().findViewById(R.id.layout_location_popup));
    PopupWindow pw = new PopupWindow(
            layout,
            100,
            100,
            true);
    // The code below assumes that the root container has an id called 'main'
    pw.setWindowLayoutMode(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    pw.showAtLocation(layout, Gravity.CENTER, 0, 0);

}

和

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:padding="10dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF"
android:id="@+id/layout_location_popup">

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dip"
    android:text="Test Pop-Up"/>
</LinearLayout>

我更改了颜色，因为您选择的颜色不起作用。 对我来说似乎不是典型的android颜色。 此外，我将布局的宽度和高度设置为“ WRAP_CONTENT”。 对我来说，它现在在屏幕中间显示为白色，显示良好。