我希望通过扩展mainactivity中的导航Activity，将菜单抽屉用于我的mainactivity。但我无法做到。这是我的导航Activity
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import net.simonvt.menudrawer.MenuDrawer;
import net.simonvt.menudrawer.Position;
public class navigation extends Activity {
private static final String STATE_ACTIVE_POSITION = "net.simonvt.menudrawer.samples.RightMenuSample.activePosition";
private static final String STATE_CONTENT_TEXT = "net.simonvt.menudrawer.samples.RightMenuSample.contentText";
private static final int MENU_OVERFLOW = 1;
private MenuDrawer mMenuDrawer;
private MenuAdapter mAdapter;
private ListView mList;
private int mActivePosition = -1;
private String mContentText;
private TextView mContentTextView;
@Override
protected void onCreate(Bundle inState) {
super.onCreate(inState);
if (inState != null) {
mActivePosition = inState.getInt(STATE_ACTIVE_POSITION);
mContentText = inState.getString(STATE_CONTENT_TEXT);
}
mMenuDrawer = MenuDrawer.attach(this, MenuDrawer.MENU_DRAG_CONTENT, Position.RIGHT);
mMenuDrawer.setContentView(R.layout.activity_rightmenu);
List<Object> items = new ArrayList<Object>();
items.add(new Item("Rap Battle", R.drawable.ic_action_select_all_dark));
items.add(new Item("Nepali Songs", R.drawable.ic_action_select_all_dark));
//items.add(new Category("Cat 1"));
items.add(new Item("Nepali Short Movies", R.drawable.ic_action_select_all_dark));
items.add(new Item("Newari Songs", R.drawable.ic_action_select_all_dark));
//items.add(new Category("Cat 2"));
items.add(new Item("Comedy Clips", R.drawable.ic_action_select_all_dark));
items.add(new Item("Item Dance", R.drawable.ic_action_select_all_dark));
items.add(new Item("Lok Dohori", R.drawable.ic_action_select_all_dark));
items.add(new Item("Classical Songs", R.drawable.ic_action_select_all_dark));
// A custom ListView is needed so the drawer can be notified when it's scrolled. This is to update the position
// of the arrow indicator.
mList = new ListView(this);
mAdapter = new MenuAdapter(items);
mList.setAdapter(mAdapter);
mList.setOnItemClickListener(mItemClickListener);
mMenuDrawer.setMenuView(mList);
mContentTextView = (TextView) findViewById(R.id.contentText);
mContentTextView.setText(mContentText);
}
private AdapterView.OnItemClickListener mItemClickListener = new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
mActivePosition = position;
mMenuDrawer.setActiveView(view, position);
mContentTextView.setText(((TextView) view).getText());
mMenuDrawer.closeMenu();
}
};
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(STATE_ACTIVE_POSITION, mActivePosition);
outState.putString(STATE_CONTENT_TEXT, mContentText);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuItem overflowItem = menu.add(0, MENU_OVERFLOW, 0, null);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
overflowItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
}
overflowItem.setIcon(R.drawable.ic_menu_moreoverflow_normal_holo_light);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_OVERFLOW:
mMenuDrawer.toggleMenu();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onBackPressed() {
final int drawerState = mMenuDrawer.getDrawerState();
if (drawerState == MenuDrawer.STATE_OPEN || drawerState == MenuDrawer.STATE_OPENING) {
mMenuDrawer.closeMenu();
return;
}
super.onBackPressed();
}
private static class Item {
String mTitle;
int mIconRes;
Item(String title, int iconRes) {
mTitle = title;
mIconRes = iconRes;
}
}
private static class Category {
String mTitle;
Category(String title) {
mTitle = title;
}
}
private class MenuAdapter extends BaseAdapter {
private List<Object> mItems;
MenuAdapter(List<Object> items) {
mItems = items;
}
@Override
public int getCount() {
return mItems.size();
}
@Override
public Object getItem(int position) {
return mItems.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getItemViewType(int position) {
return getItem(position) instanceof Item ? 0 : 1;
}
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public boolean isEnabled(int position) {
return getItem(position) instanceof Item;
}
@Override
public boolean areAllItemsEnabled() {
return false;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
Object item = getItem(position);
if (item instanceof Category) {
if (v == null) {
v = getLayoutInflater().inflate(R.layout.menu_row_category, parent, false);
}
((TextView) v).setText(((Category) item).mTitle);
} else {
if (v == null) {
v = getLayoutInflater().inflate(R.layout.menu_row_item, parent, false);
}
TextView tv = (TextView) v;
tv.setText(((Item) item).mTitle);
tv.setCompoundDrawablesWithIntrinsicBounds(((Item) item).mIconRes, 0, 0, 0);
}
v.setTag(R.id.mdActiveViewPosition, position);
if (position == mActivePosition) {
mMenuDrawer.setActiveView(v, position);
}
return v;
}
}
}
我的主要Activity是Activity中的启动器manifest。我认为扩展Activity是正确的！你能给我一些我出错的提示吗？
package com.example.testmenu_drawer;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class Main1Activity extends navigation {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main1);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main1, menu);
return true;
}
}
答案 0 :(得分：0)
我不确定您的问题是什么，但请参阅此帖子以获取建议：android how to create my own Activity and extend it?
如果您创建一个摘要MainActivity，则有两个子类LauncherActivity和OtherActivity
然后你将不必处理超类问题。