实际上ActionBar除了简单的展示标题和菜单按钮还可以做导航,比如下拉列表和Tab导航栏,不过需要设置actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS),调用这个方法会发现已经被废弃了,也就是说Android官方已经不再推荐使用这种导航方式。这里为了能够使用ActionBar自带的导航效果还是使用这个接口。 ActionBar action...
package com.example.junweiliu.commonlysearchview; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.ListView; import android.widget.Toast; import com.example.junweiliu.commonlysearchview.adapte...
The SearchView shown above requires us to press the search icon to activate the text field. Also, it doesn’t contain any hint/placeholder text. Add the following code in the MainActivity to enable the SearchView by default and display a hint. activityMainBinding.search.setActivated(true); ac...
show()method is used to display the Snackbar on the screen. Android Snackbar Example Project Structure Android Snackbar Example Code No changes in theactivity_main.xmlcode which contains the CoordinatorLayout. Thecontent_main.xmlconsists of three buttons. One for each type of Snackbar that we’ll ...
android:name="com.example.actionbartest.MainActivity" android:label="天气" android:logo="@drawable/weather"> </activity> 现在重新运行一下程序,结果如下图所示: 添加Action按钮 ActionBar还可以根据应用程序当前的功能来提供与其相关的Action按钮,这些按钮都会以图标或文字的形式直接显示在ActionBar上。当然,如果...
The Google Search Box is the default search engine and widget that’s built into these Android devices. If you’ve looked at any of them before, one of the features you may be drawn to is this search bar that’s waiting for you to query anything that crosses your mind. ...
package com.example.searchview2; import java.util.ArrayList; import android.app.ActionBar; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.text.TextUtils; import android.view.LayoutInflater; ...
Rely on the"MPChartExample"folder and check out the examples in that project. The example project is alsoavailable in the Google PlayStore. Furthermore, here is some code to get started. Setup: For using aLineChart, BarChart, ScatterChart, CandleStickChart or PieChart, define it in .xml:...
下面是新版Toolbar与SearchView的使用代码示例: 代码语言:javascript 复制 importjava.util.Date;importcom.example.exmtoolbar.util.Utils;importandroid.support.v4.view.MenuItemCompat;importandroid.support.v7.app.AppCompatActivity;importandroid.support.v7.widget.SearchView;importandroid.support.v7.widget.Toolba...
第三个是分享菜单项,它与SearchView一样也会显示在ToolBar表面。第四个菜单项—编辑菜单,app:showAsAction="ifRoom"属性表示如果ToolBar表面还有空间的话那么它也将显示在ToolBar表面。 3. MainActivity.java 加载activity_main.xml与menu--main.xml来显示ToolBar和它附带的菜单项。 package com.example....