New API demo showing arguments to fragments.

Change-Id: I5bc41bb23b7ac6a6d7cbbd08cec67879dc4ae2fe

samples/ApiDemos/src/com/example/android/apis/app/FragmentArguments.java

@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apis.app;
+
+import com.example.android.apis.R;
+
+import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentTransaction;
+import android.content.res.TypedArray;
+import android.os.Bundle;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+/**
+ * Demonstrates a fragment that can be configured through both Bundle arguments
+ * and layout attributes.
+ */
+public class FragmentArguments extends Activity {
+//BEGIN_INCLUDE(create)
+    @Override protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.fragment_arguments);
+
+        if (savedInstanceState == null) {
+            // First-time init; create fragment to embed in activity.
+            FragmentTransaction ft = getFragmentManager().beginTransaction();
+            Fragment newFragment = MyFragment.newInstance("From Arguments");
+            ft.add(R.id.created, newFragment);
+            ft.commit();
+        }
+    }
+//END_INCLUDE(create)
+
+//BEGIN_INCLUDE(fragment)
+    public static class MyFragment extends Fragment {
+        CharSequence mLabel;
+
+        /**
+         * Create a new instance of MyFragment that will be initialized
+         * with the given arguments.
+         */
+        static MyFragment newInstance(CharSequence label) {
+            MyFragment f = new MyFragment();
+            Bundle b = new Bundle();
+            b.putCharSequence("label", label);
+            f.setArguments(b);
+            return f;
+        }
+
+        /**
+         * Parse attributes during inflation from a view hierarchy into the
+         * arguments we handle.
+         */
+        @Override public void onInflate(Activity activity, AttributeSet attrs,
+                Bundle savedInstanceState) {
+            super.onInflate(activity, attrs, savedInstanceState);
+
+            TypedArray a = activity.obtainStyledAttributes(attrs,
+                    R.styleable.FragmentArguments);
+            mLabel = a.getText(R.styleable.FragmentArguments_android_label);
+            a.recycle();
+        }
+
+        /**
+         * During creation, if arguments have been supplied to the fragment
+         * then parse those out.
+         */
+        @Override public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+
+            Bundle args = getArguments();
+            if (args != null) {
+                mLabel = args.getCharSequence("label", mLabel);
+            }
+        }
+
+        /**
+         * Create the view for this fragment, using the arguments given to it.
+         */
+        @Override public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                Bundle savedInstanceState) {
+            View v = inflater.inflate(R.layout.hello_world, container, false);
+            View tv = v.findViewById(R.id.text);
+            ((TextView)tv).setText(mLabel != null ? mLabel : "(no label)");
+            tv.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.gallery_thumb));
+            return v;
+        }
+    }
+//END_INCLUDE(fragment)
+}