NewsDetailImageActivity.java

package com.cundong.izhihu.activity;

import android.os.Bundle;
import android.support.v4.app.Fragment;

import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;
import com.cundong.izhihu.R;
import com.cundong.izhihu.fragment.NewsDetailImageFragment;
import com.cundong.izhihu.task.ImageToGalleryTask;
import com.cundong.izhihu.task.MyAsyncTask;

import de.keyboardsurfer.android.widget.crouton.Crouton;

/**
 * 类说明： 	新闻详情页中图片，点击后展示Activity
 * 
 * @date 	2014-9-20
 * @version 1.0
 */
public class NewsDetailImageActivity extends BaseActivity {

	private String mImageUrl = null;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		
		super.onCreate(savedInstanceState);

		getSupportActionBar().setDisplayHomeAsUpEnabled(true);
		
		if (savedInstanceState == null) {
			mImageUrl = getIntent().getStringExtra("imageUrl");
		} else {
			mImageUrl = savedInstanceState.getString("imageUrl");
		}
		
		Bundle bundle = new Bundle();
		bundle.putString("imageUrl", mImageUrl);
		
		// Add the Sample Fragment if there is one
		Fragment newFragment = getFragment();
		newFragment.setArguments(bundle);

		if (newFragment != null) {
			getSupportFragmentManager().beginTransaction()
					.replace(android.R.id.content, newFragment).commit();
		}
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
		outState.putString("imageUrl", mImageUrl);
		super.onSaveInstanceState(outState);
	}
	
	@Override
	protected Fragment getFragment() {
		return new NewsDetailImageFragment();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getSupportMenuInflater().inflate(R.menu.detail_image, menu);
		return super.onCreateOptionsMenu(menu);
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case R.id.action_first:
			
			new ImageToGalleryTask(this).executeOnExecutor(MyAsyncTask.THREAD_POOL_EXECUTOR, mImageUrl);

			return true;
		}
		return super.onOptionsItemSelected(item);
	}
	
	@Override
	protected void onDestroy() {
		Crouton.clearCroutonsForActivity(this);
		super.onDestroy();
	}
}