我试图制作一个导航抽屉,我正在阅读很多关于如何实现这个操作的指南,我认为它现在应该能工作,但是当我点击标题时,这个抽屉没有打开(当我手动打开它时,图标就会变小,但仍然没有菜单出现)。而且,我没有得到任何错误或例外,所以我想我可能错过了一些我自己也搞不懂的东西。这是我的BaseActivity
(由MainActivity
扩展的抽屉活动)的代码:
import android.os.Bundle;
import android.app.Activity;
import android.content.res.Configuration;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class BaseActivity extends Activity {
public DrawerLayout drawerLayout;
public ListView drawerList;
private String[] drawerListEntries;
private ActionBarDrawerToggle drawerToggle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_base);
drawerListEntries = getResources().getStringArray(R.array.drawer_items);
drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.drawable.ic_navigation_drawer, R.string.drawer_open, R.string.drawer_close)
{
public void onDrawerClosed(View view)
{
getActionBar().setTitle(R.string.app_name);
}
public void onDrawerOpened(View drawerView)
{
getActionBar().setTitle(R.string.hello_world);
}
};
drawerLayout.setDrawerListener(drawerToggle);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
drawerList = (ListView) findViewById(R.id.drawer_list);
drawerList.setAdapter(new ArrayAdapter<String>(getBaseContext(), R.layout.drawer_list_item, drawerListEntries));
drawerList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View view, int pos, long arg3) {
String selectedValue = (String) drawerList.getAdapter().getItem(pos);
Toast.makeText(getBaseContext(), selectedValue, Toast.LENGTH_SHORT).show();
}
});
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (drawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
drawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
drawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
boolean drawerOpen = drawerLayout.isDrawerOpen(drawerList);
menu.findItem(R.id.action_user).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
}
这是我的activity_base.xml
:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ListView
android:id="@+id/drawer_list"
android:layout_width="240dp"
android:layout_height="wrap_content"
android:background="@color/light_blue"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:choiceMode="singleChoice"
android:layout_gravity="start"
/>
</android.support.v4.widget.DrawerLayout>
这是我的drawer_list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/drawer_list_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="12dp"
android:textSize="24sp"
android:textColor="@color/belize_hole"
android:fontFamily="sans-serif-light">
</TextView>
</LinearLayout>
这是我的MainActivity.java
,它扩展了BaseActivity
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class HomeActivity extends BaseActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.home, menu);
//return super.onCreateOptionsMenu(menu);
return true;
}
}
有谁能看到问题吗?
发布于 2014-02-22 04:01:41
您正在通过在BaseActivity
中调用setContentView(R.layout.activity_home);
来覆盖HomeActivity
的内容视图。
我建议您切换片段,而不是使用导航抽屉进行活动,这是最好的方法。因此,您将使用导航抽屉进行一个托管活动,例如,您将只在FrameLayout中切换视图。看看这里,http://developer.android.com/training/implementing-navigation/nav-drawer.html
https://stackoverflow.com/questions/21953796
复制相似问题