我正在动态地将操作菜单项添加到操作栏，并且因为我想要“徽章”效果，所以我正在为这些项目设置视图，而不仅仅是可绘制的图标。我的问题是，当我有设置了视图的项目时，它们也与操作栏的右边缘对齐。我想要某种插图，但似乎没有任何效果。我尝试在动作视图布局上设置边距，在 XML 中设置插图并以编程方式设置，但没有任何改变。有谁知道我怎样才能使动作不会出现在边缘？
这是我现在看到的：
我想在图标和操作栏的右边缘之间有某种填充/边距，比如在左边缘和标题之间的左侧。
这是一些代码：
操作菜单项的视图 (res/layout/navbar_action.xml)：
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="53dp"
android:layout_height="53dp"
android:layout_gravity="center_vertical"
android:layout_marginRight="12dp">
<ImageView
android:id="@+id/navbar_icon"
android:layout_width="44dp"
android:layout_height="44dp"
android:layout_gravity="bottom|left"/>
<TextView
android:id="@+id/navbar_badge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top|right"
android:background="@drawable/navbar_badge_circle"
android:gravity="center"
android:textSize="@dimen/textsize_caption"
android:visibility="gone"
/>
</FrameLayout>
在基础活动中设置操作栏和操作菜单：
public abstract class BaseActivity extends AppCompatActivity {
public static final int MENU_PRIMARY = 0;
public static final int MENU_SECONDARY = 1;
protected ActionBar actionBar;
boolean hasPrimaryAction = false;
String primaryActionTitle;
MenuItem.OnMenuItemClickListener primaryActionListener;
View primaryActionView;
boolean hasSecondaryAction = false;
String secondaryActionTitle;
MenuItem.OnMenuItemClickListener secondaryActionListener;
View secondaryActionView;
...
protected boolean initToolbar() {
if (getSupportActionBar() != null) {
actionBar = getSupportActionBar();
return true;
}
Toolbar toolbar = (Toolbar) findViewById(R.id.action_bar);
if (toolbar != null) {
toolbar.setVisibility(View.VISIBLE);
setSupportActionBar(toolbar);
actionBar = getSupportActionBar();
return true;
}
return false;
}
...
public void setAction(String title, Drawable icon, int actionNumber) {
if (actionNumber == MENU_PRIMARY) {
hasPrimaryAction = true;
primaryActionTitle = title;
primaryActionView = LayoutInflater.from(this).inflate(R.layout.navbar_action, null);
ImageView iconView = (ImageView) primaryActionView.findViewById(R.id.navbar_icon);
iconView.setImageDrawable(icon);
primaryIcon = icon;
} else if (actionNumber == MENU_SECONDARY) {
hasSecondaryAction = true;
secondaryActionTitle = title;
secondaryActionIcon = icon;
secondaryActionView = LayoutInflater.from(this).inflate(R.layout.navbar_action, null);
ImageView iconView = (ImageView) secondaryActionView.findViewById(R.id.navbar_icon);
iconView.setImageDrawable(icon);
}
supportInvalidateOptionsMenu();
}
public void setActionBadge(int actionNumber, int badgeCount) {
if (actionNumber == MENU_PRIMARY) {
if (primaryActionView != null) {
TextView badgeView = (TextView) primaryActionView.findViewById(R.id.navbar_badge);
if (badgeCount > 0){
badgeView.setVisibility(View.VISIBLE);
badgeView.setText(String.valueOf(badgeCount));
} else {
badgeView.setVisibility(View.INVISIBLE);
}
}
} else if (actionNumber == MENU_SECONDARY) {
if (secondaryActionView != null) {
TextView badgeView = (TextView) secondaryActionView.findViewById(R.id.navbar_badge);
if (badgeCount > 0) {
badgeView.setVisibility(View.VISIBLE);
badgeView.setText(String.valueOf(badgeCount));
} else {
badgeView.setVisibility(View.INVISIBLE);
}
}
}
supportInvalidateOptionsMenu();
}
public void removeAction(int actionNumber) {
if (actionNumber == MENU_PRIMARY) {
hasPrimaryAction = false;
} else if (actionNumber == MENU_SECONDARY) {
hasSecondaryAction = false;
}
supportInvalidateOptionsMenu();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (hasPrimaryAction) {
menu.add(Menu.NONE, 0, Menu.NONE, primaryActionTitle).setActionView(primaryActionView).setOnMenuItemClickListener(primaryActionListener).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
}
if (hasSecondaryAction) {
menu.add(Menu.NONE, 1, Menu.NONE, secondaryActionTitle).setActionView(secondaryActionView).setOnMenuItemClickListener(secondaryActionListener).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
}
return true;
}
}
操作栏布局：
<android.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/actionBarBg"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:elevation="4dp"
android:fitsSystemWindows="true"
app:contentScrim="?attr/actionBarBg"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:titleEnabled="false">
<FrameLayout
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/transparent"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="@+id/action_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:elevation="4dp"
app:layout_collapseMode="pin"
android:visibility="gone">
<TextView
android:id="@+id/action_bar_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/TextAppearance.Widget.AppCompat.Toolbar.Title"
android:layout_gravity="left"
android:visibility="gone"/>
<ImageView
android:id="@+id/search_icon"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="right"
android:layout_marginLeft="@dimen/navigation_icons_margin_left"
android:layout_marginRight="@dimen/navigation_icons_margin_right"
android:background="@drawable/search_icon_dark_bg"
android:visibility="gone" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>