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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