Examples with BackStackEntry android.support.v4.app.FragmentManager.BackStackEntry used on opensource projects

Example 1 with BackStackEntry

use of android.support.v4.app.FragmentManager.BackStackEntry in project HoloEverywhere by Prototik.

the class FragmentBreadCrumbs method updateCrumbs.

void updateCrumbs() {
    FragmentManager fm = mActivity.getSupportFragmentManager();
    int numEntries = fm.getBackStackEntryCount();
    int numPreEntries = getPreEntryCount();
    int numViews = mContainer.getChildCount();
    for (int i = 0; i < numEntries + numPreEntries; i++) {
        BackStackEntry bse = i < numPreEntries ? getPreEntry(i) : fm.getBackStackEntryAt(i - numPreEntries);
        if (i < numViews) {
            View v = mContainer.getChildAt(i);
            Object tag = v.getTag();
            if (tag != bse) {
                for (int j = i; j < numViews; j++) {
                    mContainer.removeViewAt(i);
                }
                numViews = i;
            }
        }
        if (i >= numViews) {
            final View item = mInflater.inflate(R.layout.fragment_bread_crumb_item, this, false);
            final TextView text = (TextView) item.findViewById(R.id.title);
            text.setText(bse.getBreadCrumbTitle());
            text.setTag(bse);
            if (i == 0) {
                item.findViewById(R.id.left_icon).setVisibility(View.GONE);
            }
            mContainer.addView(item);
            text.setOnClickListener(mOnClickListener);
        }
    }
    int viewI = numEntries + numPreEntries;
    numViews = mContainer.getChildCount();
    while (numViews > viewI) {
        mContainer.removeViewAt(numViews - 1);
        numViews--;
    }
    for (int i = 0; i < numViews; i++) {
        final View child = mContainer.getChildAt(i);
        child.findViewById(R.id.title).setEnabled(i < numViews - 1);
        if (mMaxVisible > 0) {
            child.setVisibility(i < numViews - mMaxVisible ? View.GONE : View.VISIBLE);
            final View leftIcon = child.findViewById(R.id.left_icon);
            leftIcon.setVisibility(i > numViews - mMaxVisible && i != 0 ? View.VISIBLE : View.GONE);
        }
    }
}

Example 2 with BackStackEntry

use of android.support.v4.app.FragmentManager.BackStackEntry in project aFileChooser by iPaulPro.

the class FileChooserActivity method onBackStackChanged.

@Override
public void onBackStackChanged() {
    int count = mFragmentManager.getBackStackEntryCount();
    if (count > 0) {
        BackStackEntry fragment = mFragmentManager.getBackStackEntryAt(count - 1);
        mPath = fragment.getName();
    } else {
        mPath = EXTERNAL_BASE_PATH;
    }
    setTitle(mPath);
    if (HAS_ACTIONBAR)
        invalidateOptionsMenu();
}

Example 3 with BackStackEntry

use of android.support.v4.app.FragmentManager.BackStackEntry in project HanselAndGretel by JakeWharton.

the class FragmentBreadCrumbs method updateCrumbs.

void updateCrumbs() {
    FragmentManager fm = mActivity.getSupportFragmentManager();
    int numEntries = fm.getBackStackEntryCount();
    int numPreEntries = getPreEntryCount();
    int numViews = mContainer.getChildCount();
    for (int i = 0; i < numEntries + numPreEntries; i++) {
        BackStackEntry bse = i < numPreEntries ? getPreEntry(i) : fm.getBackStackEntryAt(i - numPreEntries);
        if (i < numViews) {
            View v = mContainer.getChildAt(i);
            Object tag = v.getTag();
            if (tag != bse) {
                for (int j = i; j < numViews; j++) {
                    mContainer.removeViewAt(i);
                }
                numViews = i;
            }
        }
        if (i >= numViews) {
            final View item = mInflater.inflate(R.layout.hag__fragment_bread_crumb_item, this, false);
            final TextView text = (TextView) item.findViewById(android.R.id.title);
            text.setText(bse.getBreadCrumbTitle());
            text.setTag(bse);
            if (i == 0) {
                item.findViewById(android.R.id.icon).setVisibility(View.GONE);
            }
            mContainer.addView(item);
            text.setOnClickListener(mOnClickListener);
        }
    }
    int viewI = numEntries + numPreEntries;
    numViews = mContainer.getChildCount();
    while (numViews > viewI) {
        mContainer.removeViewAt(numViews - 1);
        numViews--;
    }
    // Adjust the visibility and availability of the bread crumbs and divider
    for (int i = 0; i < numViews; i++) {
        final View child = mContainer.getChildAt(i);
        // Disable the last one
        child.findViewById(android.R.id.title).setEnabled(i < numViews - 1);
        if (mMaxVisible > 0) {
            // Make only the last mMaxVisible crumbs visible
            child.setVisibility(i < numViews - mMaxVisible ? View.GONE : View.VISIBLE);
            final View leftIcon = child.findViewById(android.R.id.icon);
            // Remove the divider for all but the last mMaxVisible - 1
            leftIcon.setVisibility(i > numViews - mMaxVisible && i != 0 ? View.VISIBLE : View.GONE);
        }
    }
}

Example 4 with BackStackEntry

use of android.support.v4.app.FragmentManager.BackStackEntry in project routerkeygenAndroid by routerkeygen.

the class FileChooserActivity method onBackStackChanged.

@Override
public void onBackStackChanged() {
    int count = mFragmentManager.getBackStackEntryCount();
    if (count > 0) {
        BackStackEntry fragment = mFragmentManager.getBackStackEntryAt(count - 1);
        mPath = fragment.getName();
    } else {
        mPath = EXTERNAL_BASE_PATH;
    }
    setTitle(mPath);
    if (HAS_ACTIONBAR)
        invalidateOptionsMenu();
}

Example 5 with BackStackEntry

use of android.support.v4.app.FragmentManager.BackStackEntry in project carat by amplab.

the class MainActivity method onBackPressed.

/**
	 * Avoid displaying a white screen when the back button is pressed in the summary fragment.
	 * When we are in the summary fragment, since there is only one fragment in the backstack,
	 * the fragment manager will fail to pop another fragment from the backstack,
	 * so only the framelayout (the parent/host widget for fragments (in our activity's layout)) is shown.
	 * We need to check the number of fragments present in the backstack, and act accordingly
	 */
@Override
public void onBackPressed() {
    FragmentManager manager = getSupportFragmentManager();
    // If we will pop a top level screen, show drawer indicator again
    int stackTop = manager.getBackStackEntryCount() - 1;
    BackStackEntry entry = manager.getBackStackEntryAt(stackTop);
    String name = entry.getName();
    String[] titles = CaratApplication.getTitles();
    boolean found = false;
    for (String t : titles) {
        if (!found)
            found = t.equals(name);
    }
    if (found) {
        // Restore menu
        mDrawerToggle.setDrawerIndicatorEnabled(true);
    }
    if (stackTop > 0) {
        // If there are back-stack entries, replace the fragment (go to the fragment)
        manager.popBackStack();
    } else
        finish();
}