实例介绍
【实例简介】UI设计体验不错,获取天气、定位 等功能已实现,安卓 不错的例子
【实例截图】
【核心代码】
package com.way.shishi; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.util.List; import net.simonvt.menudrawer.MenuDrawer; import android.app.Dialog; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.text.TextUtils; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.animation.Animation; import android.view.animation.Animation.AnimationListener; import android.view.animation.AnimationUtils; import android.widget.AdapterView; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import com.viewpagerindicator.CirclePageIndicator; import com.way.adapter.SideMenuAdapter; import com.way.adapter.WeatherPagerAdapter; import com.way.beans.Category; import com.way.beans.City; import com.way.beans.Item; import com.way.common.util.L; import com.way.common.util.LocationUtils.CityNameStatus; import com.way.common.util.PreferenceUtils; import com.way.common.util.SystemUtils; import com.way.common.util.T; import com.way.common.util.TimeUtils; import com.way.weather.plugin.bean.WeatherInfo; import com.way.weather.plugin.spider.WeatherSpider; import com.way.shishi.R; public class MainActivity extends BaseActivity implements OnClickListener, OnPageChangeListener { private static final String INSTANCESTATE_TAB = "tab_index"; private String mShareNormalStr = "#时时天气#提醒您:今天%s,%s,%s,%s,";// 日期、城市、天气、温度 private String mAqiShareStr = "空气质量指数(AQI):%s μg/m³,等级[%s];PM2.5浓度值:%s μg/m³。%s ";// aqi、等级、pm2.5、建议 private String mShareEndStr = "(请关注博客:http://blog.csdn.net/kjkj)"; private MenuDrawer mMenuDrawer; private View mSplashView; private static final int SHOW_TIME_MIN = 3000;// 最小显示时间 private long mStartTime;// 开始时间 private Handler mHandler; private SideMenuAdapter mMenuAdapter; private int mPagerOffsetPixels; private int mPagerPosition; private TextView mTitleTextView; private ImageView mShareBtn; private ImageView mLocationIV; private ListView mMenuListView; private View mRootView; private ViewPager mMainViewPager; private CirclePageIndicator mCirclePageIndicator; private WeatherPagerAdapter mFragmentAdapter; private List<City> mTmpCities; // 提供接口给fragment public MenuDrawer getMenuDrawer() { return mMenuDrawer; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); initDatas(); initMenuDrawer(); mMenuDrawer.setContentView(R.layout.activity_main); initViews(); } private void initDatas() { mStartTime = System.currentTimeMillis();// 记录开始时间, mHandler = new Handler(); // mTmpCities = getTmpCities(); // 第一次进来无定位城市 if (TextUtils.isEmpty(PreferenceUtils.getPrefString(this, AUTO_LOCATION_CITY_KEY, ""))) { startLocation(mCityNameStatus); } } private void initViews() { setSwipeBackEnable(false); mSplashView = findViewById(R.id.splash_view); mRootView = findViewById(R.id.root_view); mTitleTextView = (TextView) findViewById(R.id.location_city_textview); mLocationIV = (ImageView) findViewById(R.id.curr_loc_icon); mMainViewPager = (ViewPager) findViewById(R.id.main_viewpager); // 设置viewpager缓存view的个数,默认为1个,理论上是越多越好,但是比较耗内存, // 我这里设置两个,性能上有点改善 // mMainViewPager.setOffscreenPageLimit(2); mFragmentAdapter = new WeatherPagerAdapter(this); mMainViewPager.setAdapter(mFragmentAdapter); mCirclePageIndicator = (CirclePageIndicator) findViewById(R.id.indicator); mCirclePageIndicator.setViewPager(mMainViewPager); mCirclePageIndicator.setOnPageChangeListener(this); mTitleTextView.setOnClickListener(this); findViewById(R.id.sidebarButton).setOnClickListener(this); mShareBtn = (ImageView) findViewById(R.id.shareButton); mShareBtn.setOnClickListener(this); } private class MyTask extends AsyncTask<List<City>, Void, Void> { @Override protected void onPreExecute() { super.onPreExecute(); } @Override protected Void doInBackground(List<City>... params) { List<City> cities = params[0]; try { for (City city : cities) { WeatherInfo info = WeatherSpider.getInstance() .getWeatherInfo(MainActivity.this, city.getPostID(), false); App.mMainMap.put(city.getPostID(), info); } } catch (Exception e) { e.printStackTrace(); } return null; } @Override protected void onPostExecute(Void result) { super.onPostExecute(result); updateUI(); } } @Override protected void onResume() { super.onResume(); mTmpCities = getTmpCities(); if (App.mMainMap.isEmpty() && !mTmpCities.isEmpty()) { new MyTask().execute(mTmpCities); } else if (!App.mMainMap.isEmpty()) { updateUI(); } else { // 需要定位 } invisibleSplash(); } @Override protected void onPause() { super.onPause(); // 保存默认选择页 PreferenceUtils.setPrefInt(this, INSTANCESTATE_TAB, mMainViewPager.getCurrentItem()); } private void updateUI() { // mFragmentAdapter = new WeatherPagerAdapter(MainActivity.this); mFragmentAdapter.addAllItems(mTmpCities); // mMainViewPager.setAdapter(mFragmentAdapter); // mCirclePageIndicator.setViewPager(mMainViewPager); L.i("MainActivity updateUI..."); // getTmpCities(); mMenuAdapter.addContent(mTmpCities); mCirclePageIndicator.notifyDataSetChanged(); // 第一次进来没有数据 if (mTmpCities.isEmpty()) { mMainViewPager.removeAllViews(); mTitleTextView.setText("--"); mLocationIV.setVisibility(View.GONE); mShareBtn.setEnabled(false); return; } if (mTmpCities.size() > 1) mCirclePageIndicator.setVisibility(View.VISIBLE); else mCirclePageIndicator.setVisibility(View.GONE); mShareBtn.setEnabled(true); int defaultTab = PreferenceUtils.getPrefInt(this, INSTANCESTATE_TAB, 0); if (defaultTab > (mTmpCities.size() - 1))// 防止手动删除城市之后出现数组越界 defaultTab = 0; mMainViewPager.setCurrentItem(defaultTab, true); mTitleTextView.setText(mFragmentAdapter.getPageTitle(defaultTab)); if (mTmpCities.get(defaultTab).getIsLocation()) mLocationIV.setVisibility(View.VISIBLE); else mLocationIV.setVisibility(View.GONE); } private void invisibleSplash() { long loadingTime = System.currentTimeMillis() - mStartTime;// 计算一下总共花费的时间 if (loadingTime < SHOW_TIME_MIN) {// 如果比最小显示时间还短,就延时进入MainActivity,否则直接进入 mHandler.postDelayed(splashGone, SHOW_TIME_MIN - loadingTime); } else { mHandler.post(splashGone); } } @Override public void onClick(View v) { switch (v.getId()) { case R.id.sidebarButton: mMenuDrawer.toggleMenu(true); break; case R.id.shareButton: shareTo(); break; case R.id.location_city_textview: startActivity(new Intent(MainActivity.this, ManagerCityActivity.class)); break; default: break; } } private void shareTo() { new AsyncTask<Void, Void, File>() { Dialog dialog; @Override protected void onPreExecute() { super.onPreExecute(); dialog = SystemUtils.getCustomeDialog(MainActivity.this, R.style.load_dialog, R.layout.custom_progress_dialog); TextView titleTxtv = (TextView) dialog .findViewById(R.id.dialogText); titleTxtv.setText(R.string.please_wait); dialog.show(); } @Override protected File doInBackground(Void... params) { try { new File(getFilesDir(), "share.png").deleteOnExit(); FileOutputStream fileOutputStream = openFileOutput( "share.png", 1); mRootView.setDrawingCacheEnabled(true); mRootView.getDrawingCache().compress( Bitmap.CompressFormat.PNG, 100, fileOutputStream); return new File(getFilesDir(), "share.png"); } catch (FileNotFoundException e) { e.printStackTrace(); } return null; } @Override protected void onPostExecute(File result) { super.onPostExecute(result); dialog.dismiss(); if (result == null) { Toast.makeText(MainActivity.this, R.string.share_fail, Toast.LENGTH_SHORT).show(); return; } WeatherInfo info = App.mMainMap.get(mTmpCities.get( mMainViewPager.getCurrentItem()).getPostID()); if (info == null || info.getRealTime() == null || info.getRealTime().getAnimation_type() < 0) { Toast.makeText(MainActivity.this, R.string.share_fail, Toast.LENGTH_SHORT).show(); return; } String time = TimeUtils.getDateTime(System.currentTimeMillis()); String name = mFragmentAdapter.getPageTitle( mMainViewPager.getCurrentItem()).toString(); String weather = info.getRealTime().getWeather_name(); String temp = info.getRealTime().getTemp() "°"; String shareStr = mShareNormalStr mAqiShareStr mShareEndStr; if (info.getAqi() == null || info.getAqi().getAqi() < 0) { shareStr = mShareNormalStr mShareEndStr; shareStr = String.format(shareStr, new Object[] { time, name, weather, temp }); } else { shareStr = String.format(shareStr, new Object[] { time, name, weather, temp, info.getAqi().getAqi(), info.getAqi().getAqi_level(), info.getAqi().getPm25(), info.getAqi().getAqi_desc() }); } Intent intent = new Intent("android.intent.action.SEND"); intent.setType("image/*"); intent.putExtra("sms_body", shareStr); intent.putExtra("android.intent.extra.TEXT", shareStr); intent.putExtra("android.intent.extra.STREAM", Uri.fromFile(result)); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(Intent.createChooser(intent, getResources() .getString(R.string.share_to))); } }.execute(); } @Override public void onPageScrollStateChanged(int state) { // do nothing } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { mPagerPosition = position; mPagerOffsetPixels = positionOffsetPixels; } @Override public void onPageSelected(int position) { if (position < mFragmentAdapter.getCount()) mTitleTextView.setText(mFragmentAdapter.getPageTitle(position)); if (position >= mTmpCities.size()) { mLocationIV.setVisibility(View.GONE); return; } City city = mTmpCities.get(position); if (city != null && city.getIsLocation()) mLocationIV.setVisibility(View.VISIBLE); else mLocationIV.setVisibility(View.GONE); } private void initMenuDrawer() { // 覆盖在View之前的侧边栏菜单 mMenuDrawer = MenuDrawer.attach(this, MenuDrawer.Type.OVERLAY); mMenuDrawer.setMenuSize(Math.round(0.7f * SystemUtils .getDisplayWidth(this))); // View之后的侧边栏菜单 // mMenuDrawer = MenuDrawer.attach(this, MenuDrawer.Type.BEHIND, // Position.LEFT, MenuDrawer.MENU_DRAG_CONTENT); mMenuListView = (ListView) LayoutInflater.from(this).inflate( R.layout.sidemenu_listview, null); mMenuDrawer.setMenuView(mMenuListView); mMenuDrawer.setTouchMode(MenuDrawer.TOUCH_MODE_FULLSCREEN); mMenuDrawer .setOnInterceptMoveEventListener(new MenuDrawer.OnInterceptMoveEventListener() { @Override public boolean isViewDraggable(View v, int dx, int x, int y) { if (v == mMainViewPager) { return !(mPagerPosition == 0 && mPagerOffsetPixels == 0) || dx < 0; } return false; } }); mMenuAdapter = new SideMenuAdapter(this); // mMenuAdapter.addContent(mTmpCities); mMenuListView.setAdapter(mMenuAdapter); mMenuListView.setOnItemClickListener(mItemClickListener); } private AdapterView.OnItemClickListener mItemClickListener = new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Object item = mMenuAdapter.getItem(position); if (item instanceof Category) { return; } onMenuItemClicked(position, (Item) item); } }; protected void onMenuItemClicked(int position, Item item) { mMenuDrawer.toggleMenu(true);// 关闭此窗口 // Toast.makeText(this, item.mTitleStr, Toast.LENGTH_SHORT).show(); switch (item.mId) { case Item.INFINITE_ID: startActivity(new Intent(MainActivity.this, ManagerCityActivity.class)); break; case Item.SETTING_ID: break; case Item.SHARE_ID: break; case Item.FEEDBACK_ID: startActivity(new Intent(MainActivity.this, FeedBackActivity.class)); break; case Item.ABOUT_ID: startActivity(new Intent(MainActivity.this, AboutActivity.class)); break; default: if (mMainViewPager.getCurrentItem() != item.mId) mMainViewPager.setCurrentItem(item.mId); break; } } CityNameStatus mCityNameStatus = new CityNameStatus() { @Override public void detecting() { // do nothing } @Override public void update(String name) { City city = getLocationCityFromDB(name); if (TextUtils.isEmpty(city.getPostID())) { Toast.makeText(MainActivity.this, R.string.no_this_city, Toast.LENGTH_SHORT).show(); } else { PreferenceUtils.setPrefString(MainActivity.this, AUTO_LOCATION_CITY_KEY, name); L.i("liweiping", "location" city.toString()); addOrUpdateLocationCity(city); T.showShort( MainActivity.this, String.format( getResources().getString( R.string.get_location_scuess), name)); mTmpCities = getTmpCities(); new MyTask().execute(mTmpCities); } } }; // 进入下一个Activity Runnable splashGone = new Runnable() { @Override public void run() { Animation anim = AnimationUtils.loadAnimation(MainActivity.this, R.anim.push_right_out); anim.setAnimationListener(new AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { mSplashView.setVisibility(View.GONE); } }); if (mSplashView.getVisibility() == View.VISIBLE) mSplashView.startAnimation(anim); } }; }
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