我可以改变一个菜单项的背景颜色在安卓?
如果有人对此有任何解决方案,请让我知道。最后一个选项显然是自定义,但是否有任何方法可以在不自定义的情况下更改文本颜色。
我可以改变一个菜单项的背景颜色在安卓?
如果有人对此有任何解决方案,请让我知道。最后一个选项显然是自定义,但是否有任何方法可以在不自定义的情况下更改文本颜色。
当前回答
只要去 值-样式和内部样式和类型 你的颜色
其他回答
Options menu in android can be customized to set the background or change the text appearance. The background and text color in the menu couldn’t be changed using themes and styles. The android source code (data\res\layout\icon_menu_item_layout.xml)uses a custom item of class “com.android.internal.view.menu.IconMenuItem”View for the menu layout. We can make changes in the above class to customize the menu. To achieve the same, use LayoutInflater factory class and set the background and text color for the view.
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.my_menu, menu);
getLayoutInflater().setFactory(new Factory() {
@Override
public View onCreateView(String name, Context context, AttributeSet attrs) {
if (name .equalsIgnoreCase(“com.android.internal.view.menu.IconMenuItemView”)) {
try{
LayoutInflater f = getLayoutInflater();
final View view = f.createView(name, null, attrs);
new Handler().post(new Runnable() {
public void run() {
// set the background drawable
view .setBackgroundResource(R.drawable.my_ac_menu_background);
// set the text color
((TextView) view).setTextColor(Color.WHITE);
}
});
return view;
} catch (InflateException e) {
} catch (ClassNotFoundException e) {}
}
return null;
}
});
return super.onCreateOptionsMenu(menu);
}
多亏了麦克斯。mussterman,这是我在第22关的解决方案:
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
MenuItem searchMenuItem = menu.findItem(R.id.search);
SearchView searchView = (SearchView) searchMenuItem.getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setSubmitButtonEnabled(true);
searchView.setOnQueryTextListener(this);
setMenuTextColor(menu, R.id.displaySummary, R.string.show_summary);
setMenuTextColor(menu, R.id.about, R.string.text_about);
setMenuTextColor(menu, R.id.importExport, R.string.import_export);
setMenuTextColor(menu, R.id.preferences, R.string.settings);
return true;
}
private void setMenuTextColor(Menu menu, int menuResource, int menuTextResource) {
MenuItem item = menu.findItem(menuResource);
SpannableString s = new SpannableString(getString(menuTextResource));
s.setSpan(new ForegroundColorSpan(Color.BLACK), 0, s.length(), 0);
item.setTitle(s);
}
硬编码的颜色。BLACK可以成为setMenuTextColor方法的附加参数。此外,我只使用这个菜单项是android:showAsAction="never"。
将它添加到我的styles.xml中对我有用
<item name="android:textColorPrimary">?android:attr/textColorPrimaryInverse</item>
感谢您提供的代码示例。 我不得不修改它,让它与上下文菜单一起工作。 这就是我的解。
static final Class<?>[] constructorSignature = new Class[] {Context.class, AttributeSet.class};
class MenuColorFix implements LayoutInflater.Factory {
public View onCreateView(String name, Context context, AttributeSet attrs) {
if (name.equalsIgnoreCase("com.android.internal.view.menu.ListMenuItemView")) {
try {
Class<? extends ViewGroup> clazz = context.getClassLoader().loadClass(name).asSubclass(ViewGroup.class);
Constructor<? extends ViewGroup> constructor = clazz.getConstructor(constructorSignature);
final ViewGroup view = constructor.newInstance(new Object[]{context,attrs});
new Handler().post(new Runnable() {
public void run() {
try {
view.setBackgroundColor(Color.BLACK);
List<View> children = getAllChildren(view);
for(int i = 0; i< children.size(); i++) {
View child = children.get(i);
if ( child instanceof TextView ) {
((TextView)child).setTextColor(Color.WHITE);
}
}
}
catch (Exception e) {
Log.i(TAG, "Caught Exception!",e);
}
}
});
return view;
}
catch (Exception e) {
Log.i(TAG, "Caught Exception!",e);
}
}
return null;
}
}
public List<View> getAllChildren(ViewGroup vg) {
ArrayList<View> result = new ArrayList<View>();
for ( int i = 0; i < vg.getChildCount(); i++ ) {
View child = vg.getChildAt(i);
if ( child instanceof ViewGroup) {
result.addAll(getAllChildren((ViewGroup)child));
}
else {
result.add(child);
}
}
return result;
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
LayoutInflater lInflater = getLayoutInflater();
if ( lInflater.getFactory() == null ) {
lInflater.setFactory(new MenuColorFix());
}
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.myMenu, menu);
}
对我来说,这适用于Android 1.6、2.03和4.03。
我是这样编程的:
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.changeip_card_menu, menu);
for(int i = 0; i < menu.size(); i++) {
MenuItem item = menu.getItem(i);
SpannableString spanString = new SpannableString(menu.getItem(i).getTitle().toString());
spanString.setSpan(new ForegroundColorSpan(Color.BLACK), 0, spanString.length(), 0); //fix the color to white
item.setTitle(spanString);
}
return true;
}