Java 无法使用supportv7修改导航抽屉
我将使用supportv7库实现导航抽屉,因此即使使用2.3 Android,我也会使用该应用程序。。我做不到。。我举了一些例子,但仍然有错误。。这是我到目前为止写的:Java 无法使用supportv7修改导航抽屉,java,android,navigation-drawer,android-support-library,android-actionbar-compat,Java,Android,Navigation Drawer,Android Support Library,Android Actionbar Compat,我将使用supportv7库实现导航抽屉,因此即使使用2.3 Android,我也会使用该应用程序。。我做不到。。我举了一些例子,但仍然有错误。。这是我到目前为止写的: public class MainActivity extends ActionBarActivity { private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mD
public class MainActivity extends ActionBarActivity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
CustomDrawerAdapter adapter;
List<DrawerItem> dataList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/** Customizzo la actionbar */
ActionBar actionBar = getSupportActionBar();
actionBar.setCustomView(R.layout.actionbarcustom);
setTitle("Hi");
int actionBarTitleId = Resources.getSystem().getIdentifier("action_bar_title", "id", "android");
if (actionBarTitleId > 0) {
TextView title = (TextView) findViewById(actionBarTitleId);
if (title != null) {
title.setTextColor(Color.WHITE);
}
}
// Initializing
dataList = new ArrayList<DrawerItem>();
mTitle = mDrawerTitle = getTitle();
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
GravityCompat.START);
dataList.add(new DrawerItem("Hi All")); // adding a header to the list
dataList.add(new DrawerItem("News", R.drawable.news));
dataList.add(new DrawerItem("Second Tab", R.drawable.arrow));
dataList.add(new DrawerItem("Third tab", R.drawable.high_importance));
dataList.add(new DrawerItem("4 tab", R.drawable.star));
dataList.add(new DrawerItem("5 Tab", R.drawable.spam));
dataList.add(new DrawerItem("6 Tab", R.drawable.group));
adapter = new CustomDrawerAdapter(this, R.layout.custom_drawer_item,
dataList);
mDrawerList.setAdapter(adapter);
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, R.string.drawer_open,
R.string.drawer_close) {
public void onDrawerClosed(View view) {
getSupportActionBar().setTitle(mTitle);
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getSupportActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
if (dataList.get(0).isSpinner()
& dataList.get(1).getTitle() != null) {
SelectItem(2);
} else if (dataList.get(0).getTitle() != null) {
SelectItem(1);
} else {
SelectItem(0);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void SelectItem(int possition) {
Fragment fragment = null;
Bundle args = new Bundle();
switch (possition) {
case 1:
fragment = new FragmentThree();
break;
case 2:
fragment = new FragmentOne();
break;
case 3:
fragment = new FragmentOne();
break;
case 4:
fragment = new FragmentOne();
break;
case 5:
fragment = new FragmentOne();
break;
case 6:
fragment = new FragmentTwo();
break;
default:
break;
}
fragment.setArguments(args);
FragmentManager frgManager = getSupportFragmentManager();
FragmentTransaction ft = frgManager.beginTransaction();
ft.replace(R.id.content_frame, fragment)
.commit();
mDrawerList.setItemChecked(possition, true);
setTitle(dataList.get(possition).getItemName());
mDrawerLayout.closeDrawer(mDrawerList);
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
@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 toggles
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
switch (item.getItemId()){
case R.id.action_settings:
Intent i = new Intent(MainActivity.this, settings.class);
startActivity(i);
return true;
}
return false;
}
private class DrawerItemClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
if (dataList.get(position).getTitle() == null) {
SelectItem(position);
}
}
}
}
错误在以下几行中:
fragment.setArguments(args);
FragmentManager frgManager = getSupportFragmentManager();
FragmentTransaction ft = frgManager.beginTransaction();
ft.replace(R.id.content_frame, fragment)
.commit();
该方法似乎不适用于android.app.Fragment。。我用尽了一切办法都没有成功。。还有什么需要改变的吗 您需要使用支持库中的片段类。SupportFragmentManager适用于android.support.v4.app.Fragment,而不适用于android.app.Fragment您需要特别小心通配符导入。在您的情况下,导入android.app.*会导致问题,因为android.app.Fragment是包的一部分
您需要确保导入的是android.support.v4.app.Fragment,以匹配FragmentTransaction.replaceint、Fragment的参数。您需要使用android.support.v4.app.Fragment,而不是android.app.Fragment。我在所有片段中导入了supportv7,现在在getSupportFragmentManager中只有一个错误;无法将类型为android.support.v4.app.Fragmentmanager的实例分配给类型为android.support.v4.app.Fragmentmanager的变量。您可以尝试删除所有通配符导入并从中执行操作。但是错误消息毫无意义,看起来您的IDE很难跟踪您的更改,如果您正在使用Eclipse,重新启动可能也会有所帮助:我现在正在使用AIDE,因为我的Eclipse不工作,我需要编译项目你认为这只是一个导入问题吗?我不认为你仍然存在导入错误,但是删除通配符并检查所有内容不会有什么坏处,因为它们可能会导致冲突。。。当项目没有在Eclipse中刷新,并且IDE仍在尝试标记已解决的错误时,会发生什么情况。除了关闭并重新打开IDE以查看其是否刷新错误标志外,我不知道如何进一步帮助您,抱歉:/
fragment.setArguments(args);
FragmentManager frgManager = getSupportFragmentManager();
FragmentTransaction ft = frgManager.beginTransaction();
ft.replace(R.id.content_frame, fragment)
.commit();