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Commit b2852cab authored by Jason Monk's avatar Jason Monk
Browse files

Allow FragmentContainer to play a role in fragment construction 

This allows class swapping, dependency injection, and other fun
stuff.

Test: manual
Change-Id: I93e17ccf9cebb6f542903d31597b5ea41544e069
parent fabf8e81

api/current.txt

+1 −0
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@@ -4586,6 +4586,7 @@ package android.app { 














  public abstract class FragmentContainer {















    ctor public FragmentContainer();













    method public android.app.Fragment instantiate(android.content.Context, java.lang.String, android.os.Bundle);















    method public abstract android.view.View onFindViewById(int);















    method public abstract boolean onHasView();















  }

























api/system-current.txt



+1
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@@ -4742,6 +4742,7 @@ package android.app {



























  public abstract class FragmentContainer {















    ctor public FragmentContainer();













    method public android.app.Fragment instantiate(android.content.Context, java.lang.String, android.os.Bundle);















    method public abstract android.view.View onFindViewById(int);















    method public abstract boolean onHasView();















  }

























api/test-current.txt



+1
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@@ -4596,6 +4596,7 @@ package android.app {



























  public abstract class FragmentContainer {















    ctor public FragmentContainer();













    method public android.app.Fragment instantiate(android.content.Context, java.lang.String, android.os.Bundle);















    method public abstract android.view.View onFindViewById(int);















    method public abstract boolean onHasView();















  }

























core/java/android/app/Fragment.java



+7
−3






























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@@ -102,15 +102,19 @@ final class FragmentState implements Parcelable {













        mSavedFragmentState = in.readBundle();















    }





























    public Fragment instantiate(FragmentHostCallback host, Fragment parent,













            FragmentManagerNonConfig childNonConfig) {













    public Fragment instantiate(FragmentHostCallback host, FragmentContainer container,













            Fragment parent, FragmentManagerNonConfig childNonConfig) {















        if (mInstance == null) {















            final Context context = host.getContext();















            if (mArguments != null) {















                mArguments.setClassLoader(context.getClassLoader());















            }





























            if (container != null) {













                mInstance = container.instantiate(context, mClassName, mArguments);













            } else {















                mInstance = Fragment.instantiate(context, mClassName, mArguments);













            }































            if (mSavedFragmentState != null) {















                mSavedFragmentState.setClassLoader(context.getClassLoader());

































core/java/android/app/FragmentContainer.java



+11
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@@ -18,6 +18,8 @@ package android.app;





























import android.annotation.IdRes;















import android.annotation.Nullable;













import android.content.Context;













import android.os.Bundle;















import android.view.View;































/**









@@ -35,4 +37,13 @@ public abstract class FragmentContainer {













     * Return {@code true} if the container holds any view.















     */















    public abstract boolean onHasView();



























    /**













     * Creates an instance of the specified fragment, can be overridden to construct fragments













     * with dependencies, or change the fragment being constructed. By default just calls













     * {@link Fragment#instantiate(Context, String, Bundle)}.













     */













    public Fragment instantiate(Context context, String className, Bundle arguments) {













        return Fragment.instantiate(context, className, arguments);













    }















}