在我的项目中，我在MainActivity.java中有一个导航抽屉。该抽屉中的每个项目都会启动一个占据整个屏幕空间的不同片段。其中一个片段具有需要启动Activity的按钮（此活动扩展了MainActivity.java - 这背后的基本原理是保持导航抽屉可用）。当我按下该片段中的任何按钮以启动另一个活动时，我收到此错误
java.lang.RuntimeException: Unable to start activity ComponentInfo{.AddWorkoutActivity}: java.lang.IllegalArgumentException:
No view found for id 0x7f0a0041 (id/contentFrame) for fragment NewLogFragment{529f3328 #0 id=0x7f0a0041}
此处，NewLogFragment是尝试启动新活动的片段。
基本上，我的项目结构如下： MainActivity：java - ＆gt;包含NavDrawer并启动片段 - ＆gt;然后，此片段将启动另一个活动，从而导致错误。
这是我的一些代码：
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// rest of the code. Note, DrawerList is the list of items in the drawer.
DrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
int editedPosition = position + 1;
Toast.makeText(MainActivity.this, "You selected item " + editedPosition, Toast.LENGTH_SHORT).show();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction ft = fragmentManager.beginTransaction();
switch(position){
case 0:
ft.replace(R.id.contentFrame, new NewLogFragment()).commit();
break;
}
mDrawerLayout.closeDrawer(mDrawerList);
}
}); // ... rest of the code
activity_main.xml中
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/primary"
app:popupTheme="@style/Theme.AppCompat"
app:theme="@style/ToolbarTheme" />
<!-- Main layout -->
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/contentFrame"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
<!-- Nav drawer -->
<ListView
android:id="@android:id/list"
android:layout_width="305dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="@android:color/white" />
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
NewLogFragment.java
public class NewLogFragment extends Fragment {
private Button bt_button;
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.newlog_layout, container, false);
bt_button = (Button) rootView.findViewById(R.id.bt_button);
bt_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getActivity(), AddWorkoutActivity.class);
intent.putExtra("type", 1);
startActivity(intent);
}
});
return rootView;
}
@Override
public void onDestroyView() {
super.onDestroyView();
}
newlog_layout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/fragmentOne">
<LinearLayout
android:id="@+id/ll_buttons"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/bt_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="@string/bt_button" />
</LinearLayout>
</RelativeLayout>
也许我没有正确地构建我的项目......但是我已经在网上看了，但这应该可行。不知道什么是错的。关于构建我的项目的最佳方法的任何建议也受到赞赏（无论是以这种方式保持还是将一切都变成片段或活动）。但是我想先解决这个问题。
编辑添加AddWorkoutActivity.java
public class AddWorkoutActivity extends MainActivity implements View.OnClickListener {
TextView tv_warmupex, tv_mainex, tv_workout_type, tv_cycle, tv_week, tv_one_rm;
EditText ev_datepicker;
// more layout stuff
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.addworkout_layout);
dateFormatter = new SimpleDateFormat("MM-dd-yyyy", Locale.US);
Intent logFragmentIntent = getIntent();
workout_type = logFragmentIntent.getStringExtra("workout_type");
setUpLayout(workout_type);
}
// and a bunch of helper methods that do all the calculations
public void completeWorkout(MenuItem item) {
if (cb_wu_1.isChecked() && cb_wu_2.isChecked() && cb_wu_3.isChecked() &&
cb_me_1.isChecked() && cb_me_2.isChecked() && cb_me_3.isChecked()) {
// add workout to database
HashMap<String, String> queryValuesMap = new HashMap<String, String>();
queryValuesMap.put("table", MAIN_E);
queryValuesMap.put(WEEK, String.valueOf(e_info[1])); // get latest cycle/week for this exercise and +1 to add to the table
queryValuesMap.put(CYCLE, String.valueOf(e_info[0]));
queryValuesMap.put(WEIGHT, getWeightString());
queryValuesMap.put(DATE_CREATED, changeDateFormat(ev_datepicker.getText().toString()));
queryValuesMap.put(NOTES, "notes");
queryValuesMap.put(MAIN_EXERCISE, workout_type);
dbTools.insertExercise(queryValuesMap);
// Update 1RM table if a new rep max is achieved during current workout
if (Double.parseDouble(getWeightString())>oneRepMax){
HashMap<String, String> queryValuesMapOneRM = new HashMap<String, String>();
queryValuesMapOneRM.put(MAIN_EXERCISE, workout_type); // get latest cycle/week for this exercise and +1 to add to the table
queryValuesMapOneRM.put(WEIGHT, getWeightString());
queryValuesMapOneRM.put(DATE_CREATED, changeDateFormat(ev_datepicker.getText().toString()));
dbTools.updateExerciseRepMax(queryValuesMapOneRM);
}
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
} else {
/*if not all buttons are clicked, show a toast
telling user to click all buttons to complete workout
*/
}
}
}
答案 0 :(得分：2)
由于您正在尝试使用当前活动中不包含的ID替换片段而发生崩溃。我的建议是更改项目结构，例如，为NavDrawer使用一个活动，并为每个菜单使用片段。否则，它会更复杂。请参阅以下链接http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/