带有 NavigationDrawer 的片段中的 TabHost
TabHost in a fragment with NavigationDrawer
好吧，我正在尝试在 Fragment 中创建一个 TabHostFragment，我面临的问题是我无法实现它，因为我已经在使用抽屉了导航。我在 SO 中寻找一些答案，但我没有找到最好的方法。
我正在使用这个 Navigation drawer example, but I've added more fragments and more items, the thing is that I tried to implement this code of this example，但它不起作用。我知道这是可能的，因为 Google Play, YouTube, Play Music... 所有这些应用程序都有一个抽屉导航，里面有标签。
问题是我尝试过的所有事情之一就是创建一个 TabHostFragment 适配器，就像在答案示例中那样，然后在当时这样做：
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
MisOfertasFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Tab2"),
RecomendacionesFragment.class, null);
break;
我不知道这样做是否正确，但我试过了，在这种情况下，它控制点击导航抽屉的哪个项目，然后当用户点击第一个项目时，它应该显示TabHost.
LogCat 错误看起来像：
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.widget.TabHost$TabSpec android.support.v4.app.FragmentTabHost.newTabSpec(java.lang.String)' on a null object reference
此错误所指向的行是：
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
并在 displayView(0) 中：
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
我知道这不是使用 FragmentTabHost 的最佳主意（在 switch 案例上实现它），但我也尝试创建一个新的 class 就像答案的例子和 cann 在这种情况下 fragment = new ClassWithTabs 它给了我同样的错误。
请告诉我我误解或做错了什么，因为我不明白我做错了什么。
如果你们需要更多代码，可以问我，我会尽快 post。
编辑
我已经更改了导入，我有 import android.app.FragmentManager; 并且我更改为 import android.support.v4.app.FragmentManager;，并且只给我在这一堆代码中的一个错误：
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); //here's the error
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
错误 --> Error:(253, 37) error: incompatible types: android.app.Fragment cannot be converted to android.support.v4.app.Fragment
EDIT2
package info.androidhive.slidingmenu;
import info.androidhive.slidingmenu.adapter.NavDrawerListAdapter;
import info.androidhive.slidingmenu.model.NavDrawerItem;
import java.util.ArrayList;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;
import android.text.Html;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
public class MainActivity extends FragmentActivity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// saber si esta abierto
public boolean mDrawerOpened;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
//para ponerlo visible
public MenuItem mi;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// Home
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Find People
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Photos
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Communities, Will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
// Pages
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
// What's hot, We will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));
//AyudaSugerencias
navDrawerItems.add(new NavDrawerItem(navMenuTitles[6], navMenuIcons.getResourceId(6, -1)));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setBackgroundDrawable(new ColorDrawable(0xff1d97dd));
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(
Html.fromHtml("<font color='ffffff'>"
+ mTitle + "</font>"));
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
mDrawerOpened = false;
syncState();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(
Html.fromHtml("<font color='ffffff'>"
+ mDrawerTitle + "</font>"));
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
mDrawerOpened = true;
syncState();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Fragment fragment = null;
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
case R.id.ofertasRefresh:
return true;
case R.id.menu_search:
return true;
case R.id.newOffer:
getFragmentManager().beginTransaction().replace(R.id.frame_container, new TipusNouProducte()).commit();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
if (mDrawerOpened) { menu.removeItem(R.id.ofertasRefresh);
menu.removeItem(R.id.menu_search);menu.removeItem(R.id.newOffer);}
if (!mDrawerOpened) { menu.add(Menu.NONE, R.id.ofertasRefresh, Menu.NONE, mTitle); }
return super.onPrepareOptionsMenu(menu);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
//Fragment fragment = null; ---Removed for test, because if I don't remove this line couldn't execute the app because fragment can not call a FragmentActivity....
FragmentActivity fragment = null;
switch (position) {
case 0:
fragment = new TabHostFragment();
break;
default:
break;
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); /// here says that replace android.app.Fragment in FragmentTransaction cannot be applied...
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
这是错误
这是TabHostFragment.class
package info.androidhive.slidingmenu;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;
/**
* Created by Joan on 26/02/2015.
*/
public class TabHostFragment extends FragmentActivity {
// Fragment TabHost as mTabHost
private FragmentTabHost mTabHost;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tabhost);
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
MisOfertasFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Tab2"),
RecomendacionesFragment.class, null);
}
}
EDIT3
private void displayView(int position) {
//Fragment fragment = null; ---Removed for test, because if I don't remove this line couldn't execute the app because fragment can not call a FragmentActivity....
if(position == 0){
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
setContentView(R.layout.tabhost);
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Mis ofertas"),
MisOfertasFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Recomendaciones"),
RecomendacionesFragment.class, null);
}
else
{
Fragment fragment = null;
switch (position) {
case 1:
fragment = new RecomendacionesFragment();
break;
case 2:
fragment = new LocalizacionFragment();
break;
case 3:
fragment = new ListaProductosFragment();
break;
case 4:
fragment = new ConfiguracionFragment();
break;
case 5:
fragment = new AyudaSugerenciasFragment();
break;
case 6:
fragment = new AyudaSugerencias();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); /// here says that replace android.app.Fragment in FragmentTransaction cannot be applied...
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
}
EDIT4 LogCat错误
Process: info.androidhive.slidingmenu, PID: 2495
java.lang.RuntimeException: Unable to start activity ComponentInfo{info.androidhive.slidingmenu/info.androidhive.slidingmenu.MainActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {info.androidhive.slidingmenu/info.androidhive.slidingmenu.TabHostFragment}; have you declared this activity in your AndroidManifest.xml?
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {info.androidhive.slidingmenu/info.androidhive.slidingmenu.TabHostFragment}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1761)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1485)
at android.app.Activity.startActivityForResult(Activity.java:3736)
at android.app.Activity.startActivityForResult(Activity.java:3697)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:817)
at android.app.Activity.startActivity(Activity.java:4007)
at android.app.Activity.startActivity(Activity.java:3975)
at info.androidhive.slidingmenu.MainActivity.displayView(MainActivity.java:221)
at info.androidhive.slidingmenu.MainActivity.onCreate(MainActivity.java:138)
at android.app.Activity.performCreate(Activity.java:5933)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
您忘记打电话了
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
调用 findViewById().
后立即在 displayView() 方法中添加以上内容
编辑：
1. 从 FragmentActivity 而不是 Activity.
扩展你的 MainActivity
2. 确保您的 FragmentManager 被导入为
import android.support.v4.app.FragmentManager;
而不是
import android.app.FragmentManager;
编辑 2：
确保您的 Fragment 导入为
import android.support.v4.app.Fragment;
而不是
import android.app.Fragment;
编辑 3：
您的 displayView() 方法应该是：
private void displayView(int position) {
//Fragment fragment = null; ---Removed for test, because if I don't remove this line couldn't execute the app because fragment can not call a FragmentActivity....
if(position == 0){
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
Intent intent = new Intent(MainActivity.this, TabHostFragment.class);
startActivity(intent);
}
else
{
Fragment fragment = null;
switch (position) {
case 1:
fragment = new RecomendacionesFragment();
break;
case 2:
fragment = new LocalizacionFragment();
break;
case 3:
fragment = new ListaProductosFragment();
break;
case 4:
fragment = new ConfiguracionFragment();
break;
case 5:
fragment = new AyudaSugerenciasFragment();
break;
case 6:
fragment = new AyudaSugerencias();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); /// here says that replace android.app.Fragment in FragmentTransaction cannot be applied...
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
}
}
好吧，我正在尝试在 Fragment 中创建一个 TabHostFragment，我面临的问题是我无法实现它，因为我已经在使用抽屉了导航。我在 SO 中寻找一些答案，但我没有找到最好的方法。
我正在使用这个 Navigation drawer example, but I've added more fragments and more items, the thing is that I tried to implement this code of this example，但它不起作用。我知道这是可能的，因为 Google Play, YouTube, Play Music... 所有这些应用程序都有一个抽屉导航，里面有标签。
问题是我尝试过的所有事情之一就是创建一个 TabHostFragment 适配器，就像在答案示例中那样，然后在当时这样做：
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
MisOfertasFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Tab2"),
RecomendacionesFragment.class, null);
break;
我不知道这样做是否正确，但我试过了，在这种情况下，它控制点击导航抽屉的哪个项目，然后当用户点击第一个项目时，它应该显示TabHost.
LogCat 错误看起来像：
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.widget.TabHost$TabSpec android.support.v4.app.FragmentTabHost.newTabSpec(java.lang.String)' on a null object reference
此错误所指向的行是：
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
并在 displayView(0) 中：
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
我知道这不是使用 FragmentTabHost 的最佳主意（在 switch 案例上实现它），但我也尝试创建一个新的 class 就像答案的例子和 cann 在这种情况下 fragment = new ClassWithTabs 它给了我同样的错误。
请告诉我我误解或做错了什么，因为我不明白我做错了什么。
如果你们需要更多代码，可以问我，我会尽快 post。
编辑
我已经更改了导入，我有 import android.app.FragmentManager; 并且我更改为 import android.support.v4.app.FragmentManager;，并且只给我在这一堆代码中的一个错误：
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); //here's the error
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
错误 --> Error:(253, 37) error: incompatible types: android.app.Fragment cannot be converted to android.support.v4.app.Fragment
EDIT2
package info.androidhive.slidingmenu;
import info.androidhive.slidingmenu.adapter.NavDrawerListAdapter;
import info.androidhive.slidingmenu.model.NavDrawerItem;
import java.util.ArrayList;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;
import android.text.Html;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
public class MainActivity extends FragmentActivity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// saber si esta abierto
public boolean mDrawerOpened;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
//para ponerlo visible
public MenuItem mi;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// Home
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Find People
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Photos
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Communities, Will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
// Pages
navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
// What's hot, We will add a counter here
navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));
//AyudaSugerencias
navDrawerItems.add(new NavDrawerItem(navMenuTitles[6], navMenuIcons.getResourceId(6, -1)));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setBackgroundDrawable(new ColorDrawable(0xff1d97dd));
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(
Html.fromHtml("<font color='ffffff'>"
+ mTitle + "</font>"));
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
mDrawerOpened = false;
syncState();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(
Html.fromHtml("<font color='ffffff'>"
+ mDrawerTitle + "</font>"));
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
mDrawerOpened = true;
syncState();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Fragment fragment = null;
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
case R.id.ofertasRefresh:
return true;
case R.id.menu_search:
return true;
case R.id.newOffer:
getFragmentManager().beginTransaction().replace(R.id.frame_container, new TipusNouProducte()).commit();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
if (mDrawerOpened) { menu.removeItem(R.id.ofertasRefresh);
menu.removeItem(R.id.menu_search);menu.removeItem(R.id.newOffer);}
if (!mDrawerOpened) { menu.add(Menu.NONE, R.id.ofertasRefresh, Menu.NONE, mTitle); }
return super.onPrepareOptionsMenu(menu);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
//Fragment fragment = null; ---Removed for test, because if I don't remove this line couldn't execute the app because fragment can not call a FragmentActivity....
FragmentActivity fragment = null;
switch (position) {
case 0:
fragment = new TabHostFragment();
break;
default:
break;
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); /// here says that replace android.app.Fragment in FragmentTransaction cannot be applied...
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
这是错误
这是TabHostFragment.class
package info.androidhive.slidingmenu;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;
/**
* Created by Joan on 26/02/2015.
*/
public class TabHostFragment extends FragmentActivity {
// Fragment TabHost as mTabHost
private FragmentTabHost mTabHost;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tabhost);
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Tab1"),
MisOfertasFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Tab2"),
RecomendacionesFragment.class, null);
}
}
EDIT3
private void displayView(int position) {
//Fragment fragment = null; ---Removed for test, because if I don't remove this line couldn't execute the app because fragment can not call a FragmentActivity....
if(position == 0){
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
setContentView(R.layout.tabhost);
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("Mis ofertas"),
MisOfertasFragment.class, null);
mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("Recomendaciones"),
RecomendacionesFragment.class, null);
}
else
{
Fragment fragment = null;
switch (position) {
case 1:
fragment = new RecomendacionesFragment();
break;
case 2:
fragment = new LocalizacionFragment();
break;
case 3:
fragment = new ListaProductosFragment();
break;
case 4:
fragment = new ConfiguracionFragment();
break;
case 5:
fragment = new AyudaSugerenciasFragment();
break;
case 6:
fragment = new AyudaSugerencias();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); /// here says that replace android.app.Fragment in FragmentTransaction cannot be applied...
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
}
EDIT4 LogCat错误
Process: info.androidhive.slidingmenu, PID: 2495
java.lang.RuntimeException: Unable to start activity ComponentInfo{info.androidhive.slidingmenu/info.androidhive.slidingmenu.MainActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {info.androidhive.slidingmenu/info.androidhive.slidingmenu.TabHostFragment}; have you declared this activity in your AndroidManifest.xml?
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {info.androidhive.slidingmenu/info.androidhive.slidingmenu.TabHostFragment}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1761)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1485)
at android.app.Activity.startActivityForResult(Activity.java:3736)
at android.app.Activity.startActivityForResult(Activity.java:3697)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:817)
at android.app.Activity.startActivity(Activity.java:4007)
at android.app.Activity.startActivity(Activity.java:3975)
at info.androidhive.slidingmenu.MainActivity.displayView(MainActivity.java:221)
at info.androidhive.slidingmenu.MainActivity.onCreate(MainActivity.java:138)
at android.app.Activity.performCreate(Activity.java:5933)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
您忘记打电话了
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
调用 findViewById().
displayView() 方法中添加以上内容
编辑：
1. 从 FragmentActivity 而不是 Activity.
MainActivity
2. 确保您的 FragmentManager 被导入为
import android.support.v4.app.FragmentManager;
而不是
import android.app.FragmentManager;
编辑 2：
确保您的 Fragment 导入为
import android.support.v4.app.Fragment;
而不是
import android.app.Fragment;
编辑 3：
您的 displayView() 方法应该是：
private void displayView(int position) {
//Fragment fragment = null; ---Removed for test, because if I don't remove this line couldn't execute the app because fragment can not call a FragmentActivity....
if(position == 0){
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
Intent intent = new Intent(MainActivity.this, TabHostFragment.class);
startActivity(intent);
}
else
{
Fragment fragment = null;
switch (position) {
case 1:
fragment = new RecomendacionesFragment();
break;
case 2:
fragment = new LocalizacionFragment();
break;
case 3:
fragment = new ListaProductosFragment();
break;
case 4:
fragment = new ConfiguracionFragment();
break;
case 5:
fragment = new AyudaSugerenciasFragment();
break;
case 6:
fragment = new AyudaSugerencias();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit(); /// here says that replace android.app.Fragment in FragmentTransaction cannot be applied...
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
}
}