Example usage for android.app Fragment onInflate

Introduction

In this page you can find the example usage for android.app Fragment onInflate.

Prototype

@Deprecated
@CallSuper
public void onInflate(Activity activity, AttributeSet attrs, Bundle savedInstanceState) 

Source Link

Usage

From source file:com.chuhan.privatecalc.fragment.os.FragmentActivity.java

/**
 * Add support for inflating the <fragment> tag.
 *//*  w w  w  .  ja va 2  s.co m*/
@Override
public View onCreateView(String name, Context context, AttributeSet attrs) {
    if (!"fragment".equals(name)) {
        return super.onCreateView(name, context, attrs);
    }

    String fname = attrs.getAttributeValue(null, "class");
    TypedArray a = context.obtainStyledAttributes(attrs, FragmentTag.Fragment);
    if (fname == null) {
        fname = a.getString(FragmentTag.Fragment_name);
    }
    int id = a.getResourceId(FragmentTag.Fragment_id, View.NO_ID);
    String tag = a.getString(FragmentTag.Fragment_tag);
    a.recycle();

    View parent = null; // NOTE: no way to get parent pre-Honeycomb.
    int containerId = parent != null ? parent.getId() : 0;
    if (containerId == View.NO_ID && id == View.NO_ID && tag == null) {
        throw new IllegalArgumentException(attrs.getPositionDescription()
                + ": Must specify unique android:id, android:tag, or have a parent with an id for " + fname);
    }

    // If we restored from a previous state, we may already have
    // instantiated this fragment from the state and should use
    // that instance instead of making a new one.
    Fragment fragment = id != View.NO_ID ? mFragments.findFragmentById(id) : null;
    if (fragment == null && tag != null) {
        fragment = mFragments.findFragmentByTag(tag);
    }
    if (fragment == null && containerId != View.NO_ID) {
        fragment = mFragments.findFragmentById(containerId);
    }

    if (FragmentManagerImpl.DEBUG)
        Log.v(TAG,
                "onCreateView: id=0x" + Integer.toHexString(id) + " fname=" + fname + " existing=" + fragment);
    if (fragment == null) {
        fragment = Fragment.instantiate(this, fname);
        fragment.mFromLayout = true;
        fragment.mFragmentId = id != 0 ? id : containerId;
        fragment.mContainerId = containerId;
        fragment.mTag = tag;
        fragment.mInLayout = true;
        fragment.mFragmentManager = mFragments;
        fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
        mFragments.addFragment(fragment, true);

    } else if (fragment.mInLayout) {
        // A fragment already exists and it is not one we restored from
        // previous state.
        throw new IllegalArgumentException(attrs.getPositionDescription() + ": Duplicate id 0x"
                + Integer.toHexString(id) + ", tag " + tag + ", or parent id 0x"
                + Integer.toHexString(containerId) + " with another fragment for " + fname);
    } else {
        // This fragment was retained from a previous instance; get it
        // going now.
        fragment.mInLayout = true;
        // If this fragment is newly instantiated (either right now, or
        // from last saved state), then give it the attributes to
        // initialize itself.
        if (!fragment.mRetaining) {
            fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
        }
        mFragments.moveToState(fragment);
    }

    if (fragment.mView == null) {
        throw new IllegalStateException("Fragment " + fname + " did not create a view.");
    }
    if (id != 0) {
        fragment.mView.setId(id);
    }
    if (fragment.mView.getTag() == null) {
        fragment.mView.setTag(tag);
    }
    return fragment.mView;
}

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From source file:com.tencent.tws.assistant.support.v4.app.TwsFragmentActivity.java

/**
 * Add support for inflating the <fragment> tag.
 *///  w  w  w.j a va 2 s.c o m
@Override
public View onCreateView(String name, Context context, AttributeSet attrs) {
    if (!"fragment".equals(name)) {
        return super.onCreateView(name, context, attrs);
    }

    String fname = attrs.getAttributeValue(null, "class");
    TypedArray a = context.obtainStyledAttributes(attrs, FragmentTag.Fragment);
    if (fname == null) {
        fname = a.getString(FragmentTag.Fragment_name);
    }
    int id = a.getResourceId(FragmentTag.Fragment_id, View.NO_ID);
    String tag = a.getString(FragmentTag.Fragment_tag);
    a.recycle();

    if (!Fragment.isSupportFragmentClass(this, fname)) {
        // Invalid support lib fragment; let the device's framework handle it.
        // This will allow android.app.Fragments to do the right thing.
        return super.onCreateView(name, context, attrs);
    }

    View parent = null; // NOTE: no way to get parent pre-Honeycomb.
    int containerId = parent != null ? parent.getId() : 0;
    if (containerId == View.NO_ID && id == View.NO_ID && tag == null) {
        throw new IllegalArgumentException(attrs.getPositionDescription()
                + ": Must specify unique android:id, android:tag, or have a parent with an id for " + fname);
    }

    // If we restored from a previous state, we may already have
    // instantiated this fragment from the state and should use
    // that instance instead of making a new one.
    Fragment fragment = id != View.NO_ID ? mFragments.findFragmentById(id) : null;
    if (fragment == null && tag != null) {
        fragment = mFragments.findFragmentByTag(tag);
    }
    if (fragment == null && containerId != View.NO_ID) {
        fragment = mFragments.findFragmentById(containerId);
    }

    if (FragmentManagerImpl.DEBUG)
        Log.v(TAG,
                "onCreateView: id=0x" + Integer.toHexString(id) + " fname=" + fname + " existing=" + fragment);
    if (fragment == null) {
        fragment = Fragment.instantiate(this, fname);
        fragment.mFromLayout = true;
        fragment.mFragmentId = id != 0 ? id : containerId;
        fragment.mContainerId = containerId;
        fragment.mTag = tag;
        fragment.mInLayout = true;
        fragment.mFragmentManager = mFragments;
        fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
        mFragments.addFragment(fragment, true);

    } else if (fragment.mInLayout) {
        // A fragment already exists and it is not one we restored from
        // previous state.
        throw new IllegalArgumentException(attrs.getPositionDescription() + ": Duplicate id 0x"
                + Integer.toHexString(id) + ", tag " + tag + ", or parent id 0x"
                + Integer.toHexString(containerId) + " with another fragment for " + fname);
    } else {
        // This fragment was retained from a previous instance; get it
        // going now.
        fragment.mInLayout = true;
        // If this fragment is newly instantiated (either right now, or
        // from last saved state), then give it the attributes to
        // initialize itself.
        if (!fragment.mRetaining) {
            fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
        }
        mFragments.moveToState(fragment);
    }

    if (fragment.mView == null) {
        throw new IllegalStateException("Fragment " + fname + " did not create a view.");
    }
    if (id != 0) {
        fragment.mView.setId(id);
    }
    if (fragment.mView.getTag() == null) {
        fragment.mView.setTag(tag);
    }
    return fragment.mView;
}

---

From source file:android.app.FragmentManager.java

@Override
public View onCreateView(View parent, String name, Context context, AttributeSet attrs) {
    if (!"fragment".equals(name)) {
        return null;
    }/*from w w  w  .j  av a  2  s .co m*/

    String fname = attrs.getAttributeValue(null, "class");
    TypedArray a = context.obtainStyledAttributes(attrs, com.android.internal.R.styleable.Fragment);
    if (fname == null) {
        fname = a.getString(com.android.internal.R.styleable.Fragment_name);
    }
    int id = a.getResourceId(com.android.internal.R.styleable.Fragment_id, View.NO_ID);
    String tag = a.getString(com.android.internal.R.styleable.Fragment_tag);
    a.recycle();

    int containerId = parent != null ? parent.getId() : 0;
    if (containerId == View.NO_ID && id == View.NO_ID && tag == null) {
        throw new IllegalArgumentException(attrs.getPositionDescription()
                + ": Must specify unique android:id, android:tag, or have a parent with" + " an id for "
                + fname);
    }

    // If we restored from a previous state, we may already have
    // instantiated this fragment from the state and should use
    // that instance instead of making a new one.
    Fragment fragment = id != View.NO_ID ? findFragmentById(id) : null;
    if (fragment == null && tag != null) {
        fragment = findFragmentByTag(tag);
    }
    if (fragment == null && containerId != View.NO_ID) {
        fragment = findFragmentById(containerId);
    }

    if (FragmentManagerImpl.DEBUG)
        Log.v(TAG,
                "onCreateView: id=0x" + Integer.toHexString(id) + " fname=" + fname + " existing=" + fragment);
    if (fragment == null) {
        fragment = Fragment.instantiate(context, fname);
        fragment.mFromLayout = true;
        fragment.mFragmentId = id != 0 ? id : containerId;
        fragment.mContainerId = containerId;
        fragment.mTag = tag;
        fragment.mInLayout = true;
        fragment.mFragmentManager = this;
        fragment.onInflate(mActivity, attrs, fragment.mSavedFragmentState);
        addFragment(fragment, true);
    } else if (fragment.mInLayout) {
        // A fragment already exists and it is not one we restored from
        // previous state.
        throw new IllegalArgumentException(attrs.getPositionDescription() + ": Duplicate id 0x"
                + Integer.toHexString(id) + ", tag " + tag + ", or parent id 0x"
                + Integer.toHexString(containerId) + " with another fragment for " + fname);
    } else {
        // This fragment was retained from a previous instance; get it
        // going now.
        fragment.mInLayout = true;
        // If this fragment is newly instantiated (either right now, or
        // from last saved state), then give it the attributes to
        // initialize itself.
        if (!fragment.mRetaining) {
            fragment.onInflate(mActivity, attrs, fragment.mSavedFragmentState);
        }
    }

    // If we haven't finished entering the CREATED state ourselves yet,
    // push the inflated child fragment along.
    if (mCurState < Fragment.CREATED && fragment.mFromLayout) {
        moveToState(fragment, Fragment.CREATED, 0, 0, false);
    } else {
        moveToState(fragment);
    }

    if (fragment.mView == null) {
        throw new IllegalStateException("Fragment " + fname + " did not create a view.");
    }
    if (id != 0) {
        fragment.mView.setId(id);
    }
    if (fragment.mView.getTag() == null) {
        fragment.mView.setTag(tag);
    }
    return fragment.mView;
}

---

From source file:android.app.Activity.java

/**
 * Standard implementation of// w w w.  jav a  2  s .  com
 * {@link android.view.LayoutInflater.Factory2#onCreateView(View, String, Context, AttributeSet)}
 * used when inflating with the LayoutInflater returned by {@link #getSystemService}.
 * This implementation handles <fragment> tags to embed fragments inside
 * of the activity.
 *
 * @see android.view.LayoutInflater#createView
 * @see android.view.Window#getLayoutInflater
 */
public View onCreateView(View parent, String name, Context context, AttributeSet attrs) {
    if (!"fragment".equals(name)) {
        return onCreateView(name, context, attrs);
    }

    String fname = attrs.getAttributeValue(null, "class");
    TypedArray a = context.obtainStyledAttributes(attrs, com.android.internal.R.styleable.Fragment);
    if (fname == null) {
        fname = a.getString(com.android.internal.R.styleable.Fragment_name);
    }
    int id = a.getResourceId(com.android.internal.R.styleable.Fragment_id, View.NO_ID);
    String tag = a.getString(com.android.internal.R.styleable.Fragment_tag);
    a.recycle();

    int containerId = parent != null ? parent.getId() : 0;
    if (containerId == View.NO_ID && id == View.NO_ID && tag == null) {
        throw new IllegalArgumentException(attrs.getPositionDescription()
                + ": Must specify unique android:id, android:tag, or have a parent with an id for " + fname);
    }

    // If we restored from a previous state, we may already have
    // instantiated this fragment from the state and should use
    // that instance instead of making a new one.
    Fragment fragment = id != View.NO_ID ? mFragments.findFragmentById(id) : null;
    if (fragment == null && tag != null) {
        fragment = mFragments.findFragmentByTag(tag);
    }
    if (fragment == null && containerId != View.NO_ID) {
        fragment = mFragments.findFragmentById(containerId);
    }

    if (FragmentManagerImpl.DEBUG)
        Log.v(TAG,
                "onCreateView: id=0x" + Integer.toHexString(id) + " fname=" + fname + " existing=" + fragment);
    if (fragment == null) {
        fragment = Fragment.instantiate(this, fname);
        fragment.mFromLayout = true;
        fragment.mFragmentId = id != 0 ? id : containerId;
        fragment.mContainerId = containerId;
        fragment.mTag = tag;
        fragment.mInLayout = true;
        fragment.mFragmentManager = mFragments;
        fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
        mFragments.addFragment(fragment, true);

    } else if (fragment.mInLayout) {
        // A fragment already exists and it is not one we restored from
        // previous state.
        throw new IllegalArgumentException(attrs.getPositionDescription() + ": Duplicate id 0x"
                + Integer.toHexString(id) + ", tag " + tag + ", or parent id 0x"
                + Integer.toHexString(containerId) + " with another fragment for " + fname);
    } else {
        // This fragment was retained from a previous instance; get it
        // going now.
        fragment.mInLayout = true;
        // If this fragment is newly instantiated (either right now, or
        // from last saved state), then give it the attributes to
        // initialize itself.
        if (!fragment.mRetaining) {
            fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
        }
        mFragments.moveToState(fragment);
    }

    if (fragment.mView == null) {
        throw new IllegalStateException("Fragment " + fname + " did not create a view.");
    }
    if (id != 0) {
        fragment.mView.setId(id);
    }
    if (fragment.mView.getTag() == null) {
        fragment.mView.setTag(tag);
    }
    return fragment.mView;
}

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