目前我正在学习Android中的widget。以前我试图在我的虚拟项目中实现一个小部件,我可以用黑色显示TextView。但是,现在我有另一个项目,我用同样的方式实现了widget。我可以在小部件中显示文本,但问题是当我使用白色背景时文本的颜色是白色。我不认为我在之前的项目中修改了一些文本是黑色的。我在这里想念一些东西,比如传递错误的Context
吗?
小部件项目:
<?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">
<TextView
android:id="@+id/tv_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Body1" />
</LinearLayout>
RemoteViewsService:
public class WidgetItemService extends RemoteViewsService {
@Override
public RemoteViewsFactory onGetViewFactory(Intent intent) {
return new ItemFactory();
}
class ItemFactory implements RemoteViewsService.RemoteViewsFactory {
private List<String> mStrings;
public IngredientItemFactory() {
}
@Override
public void onCreate() {
}
@Override
public void onDataSetChanged() {
Cursor c = getContentResolver().query(StringContract.StringEntry.CONTENT_URI, null, null, null, null);
mStrings = CursorUtils.extract(c);
}
@Override
public void onDestroy() {
}
@Override
public int getCount() {
return mStrings.size();
}
@Override
public RemoteViews getViewAt(int pos) {
String string = mStrings.get(pos);
RemoteViews views = new RemoteViews(getPackageName(), R.layout.widget_item);
views.setTextViewText(R.id.tv_text, string);
return views;
}
@Override
public RemoteViews getLoadingView() {
return null;
}
@Override
public int getViewTypeCount() {
return 1;
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public boolean hasStableIds() {
return true;
}
}
}
的AppWidgetProvider:
public class Widget extends AppWidgetProvider {
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
for (int appWidgetId: appWidgetIds) {
String string = PrefUtils.load(this, appWidgetId);
RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget);
Intent intent = new Intent(context, WidgetItemService.class);
views.setRemoteAdapter(R.id.lv_list, intent);
views.setEmptyView(R.id.lv__list, R.id.tv_empty);
views.setTextViewText(R.id.tv_title, string);
Intent openActivity = BActivity.createIntent(string);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, openActivity, PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.widget, pendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, views);
}
}
@Override
public void onDeleted(Context context, int[] appWidgetIds) {
for (int appWidgetId : appWidgetIds) {
PrefUtils.delete(context, appWidgetId);
}
}
}
答案 0 :(得分:0)
根据你的代码。
<TextView
android:id="@+id/tv_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="@style/Base.TextAppearance.AppCompat.Body1" />
我找到style="@style/Base.TextAppearance.AppCompat.Body1"
。
我点击了。就是这个。
<style name="Base.TextAppearance.AppCompat.Body1">
<item name="android:textSize">@dimen/abc_text_size_body_1_material</item>
<item name="android:textColor">?android:textColorPrimary</item>
</style>
所以你可以看看android:textColorPrimary
。
然后,您查看theme color
。