Android巧用巧用ActionBar实现下拉式导航实现下拉式导航
本文实例为大家分享了ActionBar下拉式导航的实现代码，供大家参考，具体内容如下
利用Actionbar同样可以很轻松的实现下拉式的导航方式，若想实现这种效果：
1））actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST)
2)setListNavigationCallbacks(SpinnerAdapter adapter,ActionBar.OnNavigationListener callback).
首先是创建一个Fragment类：
package ccom.app.main;
import android.annotation.SuppressLint;
import android.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.TextView;
@SuppressLint("NewApi")
public class MyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Context context = this.getActivity();
TextView tv = new TextView(context);
Bundle arc = this.getArguments();
int tabs=arc.getInt("key");
tv.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
tv.setText("hello actionbar "+tabs);
return tv;
}
}
main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Main" >
<LinearLayout
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" />
</RelativeLayout>
自定义的用于显示textview的mytextview.xml:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
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