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Android 如何从自定义布局按钮单击确定哪个首选项_Android_Custom Controls_Preferences_Preferenceactivity - Fatal编程技术网

Android 如何从自定义布局按钮单击确定哪个首选项

Android 如何从自定义布局按钮单击确定哪个首选项,android,custom-controls,preferences,preferenceactivity,Android,Custom Controls,Preferences,Preferenceactivity,我有一个带有自定义布局的首选项屏幕,其中包括一个带有onClickListener的按钮。这个想法是,如果我按下按钮,它所附加的首选项将被删除。如何确定单击的按钮附加到哪个首选项 自定义布局 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_

我有一个带有自定义布局的首选项屏幕,其中包括一个带有onClickListener的按钮。这个想法是,如果我按下按钮,它所附加的首选项将被删除。如何确定单击的按钮附加到哪个首选项

自定义布局

<?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:background="?android:attr/selectableItemBackground"
    android:gravity="center_vertical"
    android:minHeight="?android:attr/listPreferredItemHeight"
    android:paddingEnd="?android:attr/scrollbarSize" >

    <ImageView
        android:id="@+android:id/icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center" />

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="6dip"
        android:layout_marginEnd="6dip"
        android:layout_marginStart="15dip"
        android:layout_marginTop="6dip"
        android:layout_weight="1" >

        <TextView
            android:id="@+android:id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="marquee"
            android:fadingEdge="horizontal"
            android:singleLine="true"
            android:text="Preference"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <TextView
            android:id="@+android:id/summary"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignStart="@android:id/title"
            android:layout_below="@android:id/title"
            android:maxLines="4"
            android:text="Summary"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textColor="?android:attr/textColorSecondary" />

        <Button
            android:id="@+id/deleteButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:background="@drawable/delete_item"
            android:focusable="false"
            android:onClick="onRemoveButtonClick" />
    </RelativeLayout>

</LinearLayout>

最后出现了下面的情况,这似乎起到了作用

public void onRemoveButtonClick(View v) {
        ListView listview = getListView();
        ListAdapter listAdapter = listview.getAdapter();
        int position = listview.getPositionForView(v);

        MultiSelectListPreference mslp = (MultiSelectListPreference) listAdapter.getItem(position);

        if (mslp != null) {
            preferenceScreen.removePreference(mslp);
        }       
}

最后出现了下面的情况,这似乎起到了作用

public void onRemoveButtonClick(View v) {
        ListView listview = getListView();
        ListAdapter listAdapter = listview.getAdapter();
        int position = listview.getPositionForView(v);

        MultiSelectListPreference mslp = (MultiSelectListPreference) listAdapter.getItem(position);

        if (mslp != null) {
            preferenceScreen.removePreference(mslp);
        }       
}

你似乎丢失了你的代码你似乎丢失了你的代码