我有一个ListView
每个行视图都从这个 xml 布局(通过活动布局充气器)膨胀的地方:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:baselineAligned="false"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/topic_list_item_selector"
android:orientation="horizontal"
android:paddingLeft="@dimen/list_item_padding_horizontal_big"
android:paddingBottom="@dimen/list_item_padding_vertical_big"
android:paddingTop="@dimen/list_item_padding_vertical_big" >
<LinearLayout
android:id="@+id/topics_list_edit_row_label_color"
android:layout_width="@dimen/label_rect_edge_size"
android:layout_height="@dimen/label_rect_edge_size"
android:orientation="vertical" >
<TextView
android:id="@+id/topics_list_edit_row_label_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:textColor="#ffffff"
android:textSize="@dimen/label_text_size" />
</LinearLayout>
<LinearLayout
android:id="@+id/topics_list_edit_row_text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_weight="1"
android:orientation="vertical" >
<TextView
android:id="@+id/topics_list_edit_row_text_title"
style="@style/DefaultText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="title" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@+id/topics_list_edit_row_text_detail_section"
style="@style/DetailText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="2 sections"
android:textColor="#818181" />
<TextView
android:id="@+id/topics_list_edit_row_text_detail_point"
style="@style/DetailText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="85 points"
android:textColor="#818181" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
当我通过在我的适配器中返回此视图时getView()
,一切正常。
TextView
但是当我通过setText()
in更改一些文本时getView()
,我的应用程序在每次屏幕旋转时会多消耗大约 1mb:
public class TopicListAdapter extends BaseAdapter{
...
public View getView(int position, View convertView, ViewGroup parent) {
View rowView;
if (convertView == null)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowView = inflater.inflate(R.layout.topics_list_edit_row, parent, false);
...
Typeface myTypeface = Typeface.createFromAsset(context.getAssets(), "Roboto-Thin.ttf"); //Added
TextView labelT = (TextView) rowView.findViewById(R.id.topics_list_edit_row_label_text);
labelT.setTypeface(myTypeface); //Added
labelT.setText("A"); //!!!! when I delete this line everything works normally !!!!
...
}
...
}
}
我想也许我的活动上下文在每次屏幕旋转后仍然存在,但如果是这种情况,那么它是如何发生的,我该如何避免它?