Android操作栏菜单项被强制溢出

Question

我查看了以下堆栈溢出文章,以找出为什么我的操作栏项目被强制溢出.

• 找不到ActionBar资源图标
• 没有在ActionBar中显示的动作项与showAsAction ="ifRoom"
• ActionBar操作项未显示

我也尝试用"always"替换"ifRoom",并且我没有得到关于问题的任何控制台输出找到可绘制的资源(它们甚至在菜单预览窗格中正确显示)

main.xml中

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

<item android:id="@+id/menu_search"
    android:icon="@drawable/ic_action_search"
    app:showAsAction="ifRoom|collapseActionView"
    app:actionViewClass="android.support.v7.widget.SearchView"
    android:title="Search"/>
<item android:id="@+id/menu_new"
    android:icon="@drawable/ic_action_new"
    app:showAsAction="ifRoom"
    android:title="New"
    android:orderInCategory="0"/>
</menu>

来自MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_activity);

    final ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    mSectionsPagerAdapter = new SectionsPagerAdapter(
            getSupportFragmentManager());

    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);
    mViewPager
            .setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
                @Override
                public void onPageSelected(int position) {
                    actionBar.setSelectedNavigationItem(position);
                }
            });

    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
        actionBar.addTab(actionBar.newTab()
                .setText(mSectionsPagerAdapter.getPageTitle(i))
                .setTabListener(this));
    }
}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    return super.onOptionsItemSelected(item);
}

这是它的样子:

这是我的res目录:

Answer 1

用android:showAsAction而不是app:showAsAction.

当错误Should use app:showAsAction with the appcompat library with xmlns:app="schemas.android.com/apk/res-auto出现时,我得到了一个压制的建议,它有效!

使用此行>> tools:ignore="AppCompatResource"并添加xmlns:tools="http://schemas.android.com/tools"到顶部.

Answer 2

对于所有app:属性,还具有等效android:属性(例如,app:showAsAction和android:showAsAction).