Java tutorial
/* * Copyright 2013 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.qrankforAndroid; import java.util.ArrayList; import java.util.List; import java.util.Locale; import java.net.URL; import java.net.MalformedURLException; import java.io.*; import java.util.*; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.SearchManager; import android.app.ProgressDialog; import android.content.Intent; import android.content.res.Configuration; import android.content.Context; import android.os.Bundle; import android.os.AsyncTask; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.Toast; import android.widget.TextView; import android.widget.ProgressBar; import android.util.Log; import android.net.Uri; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.impl.client.DefaultHttpRequestRetryHandler; import org.apache.http.HttpStatus; import org.apache.http.client.ResponseHandler; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.util.EntityUtils; import org.json.JSONObject; import org.json.JSONArray; import org.json.JSONException; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.drawable.Drawable; import android.view.LayoutInflater; import android.widget.LinearLayout; import com.qrankforAndroid.*; public class MainActivity extends Activity { private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ListView mPostList; private LinearLayout postListLayout; private ActionBarDrawerToggle mDrawerToggle; private CharSequence mDrawerTitle; private CharSequence mTitle; private String[] mPlanetTitles; private TextView textView; private LayoutInflater layoutInflater; private View convertView; private GetPosts task; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mTitle = mDrawerTitle = getTitle(); // \?[X mPlanetTitles = getResources().getStringArray(R.array.planets_array); // activity_main.xml CAEg?o mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); // activity_main.xml Xgr?[?o mDrawerList = (ListView) findViewById(R.id.left_drawer); mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // A_v^?[Zbg mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, mPlanetTitles)); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description for accessibility */ R.string.drawer_close /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { getActionBar().setTitle(mTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } public void onDrawerOpened(View drawerView) { getActionBar().setTitle(mDrawerTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } }; mDrawerLayout.setDrawerListener(mDrawerToggle); // ?? position ?@ 0 e\?B if (savedInstanceState == null) { // APIoRf?[^?B task = new GetPosts(MainActivity.this); task.execute("0"); } } // IvV?j?[??B // XMLt@C`?o?B @Override public boolean onCreateOptionsMenu(Menu menu) { return super.onCreateOptionsMenu(menu); } @Override public boolean onPrepareOptionsMenu(Menu menu) { boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } switch (item.getItemId()) { default: return super.onOptionsItemSelected(item); } } private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { // ListView \?B mPostList = (ListView) findViewById(R.id.content_frame); mPostList.setVisibility(View.GONE); // ProgressBar \?B ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressbar); progressBar.setVisibility(View.VISIBLE); // APIoRf?[^?B task = new GetPosts(MainActivity.this); task.execute(Integer.toString(position)); mDrawerLayout.closeDrawer(mDrawerList); } } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mDrawerToggle.onConfigurationChanged(newConfig); } }