0
沒什麼好說的。我正在使用單個活動，然後進入一個片段，其中調用setDisplayHomeAsUpEnabled(Boolean.TRUE)和setHasOptionsMenu(Boolean.TRUE)。該菜單有兩個項目，並與他們的互動是正確的。我在應用程序的所有onOptionsItemSelected上設置了斷點（包括活動，碎片和抽屜切換），但是當我調試時，菜單打開並且沒有觸發斷點。插入符號顯示導航抽屜
的情況下的活動和片段的代碼，他們幫助：
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/navigation_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:animateLayoutChanges="true">
<include
android:id="@+id/toolbar_actionbar"
layout="@layout/toolbar_default"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="@+id/content_fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<fragment
android:id="@+id/navigation_drawer_fragment"
android:name="org.jorge.lolin1.ui.fragment.NavigationDrawerFragment"
android:layout_width="@dimen/navigation_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
layout="@layout/fragment_navigation_drawer" />
片段代碼：
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBar;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ScrollView;
import android.widget.TextView;
import com.melnykov.fab.FloatingActionButton;
import com.squareup.picasso.Picasso;
import org.jorge.lolin1.LoLin1Application;
import org.jorge.lolin1.R;
import org.jorge.lolin1.datamodel.FeedArticle;
import org.jorge.lolin1.ui.activity.MainActivity;
import org.jorge.lolin1.ui.util.StickyParallaxNotifyingScrollView;
import org.jorge.lolin1.util.PicassoUtils;
public class ArticleReaderFragment extends Fragment {
private Context mContext;
private int mDefaultImageId;
private String TAG;
private FeedArticle mArticle;
public static final String ARTICLE_KEY = "ARTICLE";
private MainActivity mActivity;
private Drawable mActionBarBackgroundDrawable;
private final Drawable.Callback mDrawableCallback = new Drawable.Callback() {
@Override
public void invalidateDrawable(Drawable who) {
final ActionBar actionBar = mActivity.getSupportActionBar();
if (actionBar != null)
actionBar.setBackgroundDrawable(who);
}
@Override
public void scheduleDrawable(Drawable who, Runnable what, long when) {
}
@Override
public void unscheduleDrawable(Drawable who, Runnable what) {
}
};
private ActionBar mActionBar;
private float mOriginalElevation;
private FloatingActionButton mMarkAsReadFab;
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
mContext = LoLin1Application.getInstance().getContext();
Bundle args = getArguments();
if (args == null)
throw new IllegalStateException("ArticleReader created without arguments");
mArticle = args.getParcelable(ARTICLE_KEY);
TAG = mArticle.getUrl();
mActivity = (MainActivity) activity;
mDefaultImageId = getArguments().getInt(FeedListFragment.ERROR_RES_ID_KEY);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.actionbar_article_reader, menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.homeAsUp:
mActivity.onBackPressed();
return Boolean.TRUE;
case R.id.action_browse_to:
mArticle.requestBrowseToAction(mContext);
return Boolean.TRUE;
case R.id.action_share:
mArticle.requestShareAction(mContext);
return Boolean.TRUE;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
mActionBarBackgroundDrawable.setCallback(mDrawableCallback);
}
}
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
setHasOptionsMenu(Boolean.TRUE);
final View ret = inflater.inflate(R.layout.fragment_article_reader, container, Boolean.FALSE);
View mHeaderView = ret.findViewById(R.id.image);
PicassoUtils.loadInto(mContext, mArticle.getImageUrl(), mDefaultImageId, (android.widget.ImageView) mHeaderView, TAG);
final String title = mArticle.getTitle();
mHeaderView.setContentDescription(title);
((TextView) ret.findViewById(R.id.title)).setText(title);
((TextView) ret.findViewById(android.R.id.text1)).setText(mArticle.getPreviewText());
mActionBar = mActivity.getSupportActionBar();
mActionBar.setDisplayHomeAsUpEnabled(Boolean.TRUE);
mActionBarBackgroundDrawable = new ColorDrawable(mContext.getResources().getColor(R.color.toolbar_background));
mActionBar.setBackgroundDrawable(mActionBarBackgroundDrawable);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mOriginalElevation = mActionBar.getElevation();
mActionBar.setElevation(0); //So that the shadow of the ActionBar doesn't show over the article title
}
mActionBar.setTitle(mActivity.getString(R.string.section_title_article_reader));
StickyParallaxNotifyingScrollView scrollView = (StickyParallaxNotifyingScrollView) ret.findViewById(R.id.scroll_view);
scrollView.setOnScrollChangedListener(mOnScrollChangedListener);
scrollView.smoothScrollTo(0, 0);
if (!mArticle.isRead()) {
mMarkAsReadFab = (FloatingActionButton) ret.findViewById(R.id.fab_button_mark_as_read);
mMarkAsReadFab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mArticle.markAsRead();
mMarkAsReadFab.hide();
}
});
mMarkAsReadFab.show();
}
return ret;
}
private StickyParallaxNotifyingScrollView.OnScrollChangedListener mOnScrollChangedListener = new StickyParallaxNotifyingScrollView.OnScrollChangedListener() {
public void onScrollChanged(ScrollView who, int l, int t, int oldl, int oldt) {
if (mMarkAsReadFab != null)
if (!who.canScrollVertically(1)) {
mMarkAsReadFab.show();
} else if (t < oldt) {
mMarkAsReadFab.show();
} else if (t > oldt) {
mMarkAsReadFab.hide();
}
}
};
@Override
public void onDestroy() {
super.onDestroy();
Picasso.with(mContext).cancelTag(TAG);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mActionBar.setElevation(mOriginalElevation);
}
}
@Override
public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {
if (enter) {
return AnimationUtils.loadAnimation(mContext, R.anim.move_in_from_bottom);
} else {
return AnimationUtils.loadAnimation(mContext, R.anim.move_out_to_bottom);
}
}
}