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Diffstat (limited to 'samples/fragments/src/com/actionbarsherlock/sample/fragments/FragmentStackSupport.java')
-rw-r--r-- | samples/fragments/src/com/actionbarsherlock/sample/fragments/FragmentStackSupport.java | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/samples/fragments/src/com/actionbarsherlock/sample/fragments/FragmentStackSupport.java b/samples/fragments/src/com/actionbarsherlock/sample/fragments/FragmentStackSupport.java new file mode 100644 index 0000000..9e044a6 --- /dev/null +++ b/samples/fragments/src/com/actionbarsherlock/sample/fragments/FragmentStackSupport.java @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2011 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.actionbarsherlock.sample.fragments; + +import android.os.Bundle; +import android.support.v4.app.Fragment; +import android.support.v4.app.FragmentTransaction; +import android.view.LayoutInflater; +import android.view.View; +import android.view.View.OnClickListener; +import android.view.ViewGroup; +import android.widget.Button; +import android.widget.TextView; +import com.actionbarsherlock.app.SherlockFragment; +import com.actionbarsherlock.app.SherlockFragmentActivity; + +public class FragmentStackSupport extends SherlockFragmentActivity { + int mStackLevel = 1; + + @Override + protected void onCreate(Bundle savedInstanceState) { + setTheme(SampleList.THEME); //Used for theme switching in samples + super.onCreate(savedInstanceState); + setContentView(R.layout.fragment_stack); + + // Watch for button clicks. + Button button = (Button)findViewById(R.id.new_fragment); + button.setOnClickListener(new OnClickListener() { + public void onClick(View v) { + addFragmentToStack(); + } + }); + + if (savedInstanceState == null) { + // Do first time initialization -- add initial fragment. + Fragment newFragment = CountingFragment.newInstance(mStackLevel); + FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); + ft.add(R.id.simple_fragment, newFragment).commit(); + } else { + mStackLevel = savedInstanceState.getInt("level"); + } + } + + @Override + public void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + outState.putInt("level", mStackLevel); + } + + + void addFragmentToStack() { + mStackLevel++; + + // Instantiate a new fragment. + Fragment newFragment = CountingFragment.newInstance(mStackLevel); + + // Add the fragment to the activity, pushing this transaction + // on to the back stack. + FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); + ft.replace(R.id.simple_fragment, newFragment); + ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); + ft.addToBackStack(null); + ft.commit(); + } + + + + public static class CountingFragment extends SherlockFragment { + int mNum; + + /** + * Create a new instance of CountingFragment, providing "num" + * as an argument. + */ + static CountingFragment newInstance(int num) { + CountingFragment f = new CountingFragment(); + + // Supply num input as an argument. + Bundle args = new Bundle(); + args.putInt("num", num); + f.setArguments(args); + + return f; + } + + /** + * When creating, retrieve this instance's number from its arguments. + */ + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + mNum = getArguments() != null ? getArguments().getInt("num") : 1; + } + + /** + * The Fragment's UI is just a simple text view showing its + * instance number. + */ + @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("Fragment #" + mNum); + tv.setBackgroundDrawable(getResources().getDrawable(android.R.drawable.gallery_thumb)); + return v; + } + } + +} |