目前我正在学习android支持库，我想将SupportFragments添加到我的测试应用程序中。我实现的片段正在我的2.3.3模拟器和我的平板电脑Samsung Note 4.0.4上工作，但不在我的带有5.x的Samsung S5上。
实现的NavigationDrawer运行良好，相应的方法都被调用。当我打开抽屉时，单击第二个菜单项，调用替换片段的方法。
我希望我已经添加了所有重要的代码部分。
Logcat输出：
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest E/Zygote: MountEmulatedStorage()
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest E/Zygote: v2
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest I/SELinux: Function: selinux_compare_spd_ram, SPD-policy is existed. and_ver=SEPF_SM-G901F_5.0.2 ver=27
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest I/SELinux: Function: selinux_compare_spd_ram , priority [1] , priority version is VE=SEPF_SM-G901F_5.0.2_0027
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest E/SELinux: [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest I/art: Late-enabling -Xcheck:jni
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest I/libpersona: KNOX_SDCARD checking this for 10292
11-03 14:04:26.356 4861-4861/incentivelabs.supportlibtest I/libpersona: KNOX_SDCARD not a persona
11-03 14:04:26.376 4861-4861/incentivelabs.supportlibtest D/TimaKeyStoreProvider: TimaSignature is unavailable
11-03 14:04:26.386 4861-4861/incentivelabs.supportlibtest D/ActivityThread: Added TimaKeyStore provider
11-03 14:04:26.566 4861-4878/incentivelabs.supportlibtest I/GMPM: App measurement is starting up
11-03 14:04:26.566 4861-4878/incentivelabs.supportlibtest E/GMPM: getGoogleAppId failed with status: 10
11-03 14:04:26.576 4861-4878/incentivelabs.supportlibtest E/GMPM: Uploading is not possible. App measurement disabled
11-03 14:04:26.626 4861-4861/incentivelabs.supportlibtest D/PhoneWindow: *FMB* installDecor mIsFloating : false
11-03 14:04:26.626 4861-4861/incentivelabs.supportlibtest D/PhoneWindow: *FMB* installDecor flags : -2139029248
11-03 14:04:26.656 4861-4861/incentivelabs.supportlibtest D/AbsListView: Get MotionRecognitionManager
11-03 14:04:26.686 4861-4861/incentivelabs.supportlibtest D/API: RUNNING NEW DEVICE
11-03 14:04:26.716 4861-4897/incentivelabs.supportlibtest D/OpenGLRenderer: Render dirty regions requested: true
11-03 14:04:26.726 4861-4861/incentivelabs.supportlibtest D/PhoneWindow: *FMB* isFloatingMenuEnabled mFloatingMenuBtn : null
11-03 14:04:26.726 4861-4861/incentivelabs.supportlibtest D/PhoneWindow: *FMB* isFloatingMenuEnabled return false
11-03 14:04:26.766 4861-4897/incentivelabs.supportlibtest I/Adreno: EGLInit: QTI Build: 02/03/15, b606245, I0829b9e471, 20150203_LA_BF_2_1_AU139
11-03 14:04:26.776 4861-4897/incentivelabs.supportlibtest I/OpenGLRenderer: Initialized EGL, version 1.4
11-03 14:04:26.786 4861-4897/incentivelabs.supportlibtest D/OpenGLRenderer: Get maximum texture size. GL_MAX_TEXTURE_SIZE is 16384
11-03 14:04:26.786 4861-4897/incentivelabs.supportlibtest D/OpenGLRenderer: Enabling debug mode 0
11-03 14:04:26.936 4861-4861/incentivelabs.supportlibtest I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@3cea95f1 time:553865839
MainActivity（包含片段）：
package incentivelabs.supportlibtest;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
public class MainActivity extends AppCompatActivity
implements BlankFragment.OnFragmentInteractionListener,
PlusOneFragment.OnFragmentInteractionListener,
NavigationView.OnNavigationItemSelectedListener
{
Toolbar mToolbar;
DrawerLayout mDrawer;
NavigationView mNavViewer;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawer = (DrawerLayout)findViewById(R.id.drawerlayout);
mNavViewer = (NavigationView) findViewById(R.id.navigationViewer);
mNavViewer.setNavigationItemSelectedListener(this);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
android.support.v7.app.ActionBar actionBar = getSupportActionBar();
if(actionBar != null)
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mToolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mDrawer.openDrawer(GravityCompat.START);
}
});
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
Log.d("API", "RUNNING NEW DEVICE");
}else{
Log.d("API", "RUNNING OLD DEVICE");
}
getSupportFragmentManager().beginTransaction().add(R.id.nav_contentframe, new BlankFragment()).commit();
}
@Override
public void onFragmentInteraction(Uri uri) {
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.context_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
Log.d("Menu", "Button pressed");
switch (item.getItemId()) {
case R.id.file:
Snackbar.make(mDrawer,"Context Menu button pressed", Snackbar.LENGTH_LONG).setAction("Action", null).show();
return true;
default:
return super.onContextItemSelected(item);
}
}
private void switchFragement(Fragment target){
Log.d("Fragment", "Switching fragment");
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the back stack so the user can navigate back
transaction.replace(R.id.nav_contentframe, target);
transaction.addToBackStack(null);
// Commit the transaction
transaction.commit();
}
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
menuItem.setCheckable(true);
switch(menuItem.getItemId()){
case R.id.navigation_item_1:
switchFragement(new BlankFragment());
break;
case R.id.navigation_item_2:
switchFragement(new PlusOneFragment());
break;
}
mDrawer.closeDrawer(GravityCompat.START);
return true;
}
}
布局XML文件：
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawerlayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context=".MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:theme="@style/AppTheme">
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toolbar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="false"
android:theme="@style/AppTheme"
android:background="@color/colorAccent"/>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="@+id/nav_contentframe"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize" />
<android.support.design.widget.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
android:id="@+id/navigationViewer"
android:divider="@color/colorAccent"
app:headerLayout="@layout/menu_header_layout"
app:menu="@menu/drawer_menu" />
</android.support.v4.widget.DrawerLayout>
BlankFrament（另一个看起来几乎相同）
package incentivelabs.supportlibtest;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link BlankFragment.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link BlankFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class BlankFragment extends Fragment {
private OnFragmentInteractionListener mListener;
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment BlankFragment.
*/
// TODO: Rename and change types and number of parameters
public static BlankFragment newInstance(String param1, String param2) {
BlankFragment fragment = new BlankFragment();
Bundle args = new Bundle();
fragment.setArguments(args);
return fragment;
}
public BlankFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_blank, container, false);
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mListener = (OnFragmentInteractionListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
public void onFragmentInteraction(Uri uri);
}
}
答案 0 :(得分：0)
似乎问题是布局xml文件。 AppBarLayout占据了整个屏幕，因此片段的FrameLayout不可见（我想在屏幕底部的底部）。 我将FrameLayout放在AppBarLayout中（我不知道这是一个非常好的做法）现在一切都在我测试过的每台设备上运行良好。
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toolbar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@android:color/darker_gray"/>
<FrameLayout
android:id="@+id/nav_contentframe"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="13"
android:background="@android:color/background_light"
/>