同步操作将从 江启12/MeiZiNews 强制同步,此操作会覆盖自 Fork 仓库以来所做的任何修改,且无法恢复!!!
确定后同步将在后台操作,完成时将刷新页面,请耐心等待。
2016/4/29
因为连不上 github
,所以目前只在这里,等连上了就同步上去
碗豆夹下载地址:http://www.wandoujia.com/apps/com.ms.meizinewsapplication
#MeiZiNews
#RxJava
#GreenDAO
DbUtil
/**
* Built SQL for query:
* SELECT T."_id",T."HTML_ID",T."COLLECT" FROM "COLLECT_ENTITY" T
* JOIN HTML_ENTITY J1 ON T."HTML_ID"=J1."_id"
* WHERE J1."URL"=?
*
* @param url
* @return
*/
public List<CollectEntity> queryCollectByhtmlUrl(String url) {
QueryBuilder<CollectEntity> queryBuilder = collectEntityDao.queryBuilder();
queryBuilder.join(CollectEntityDao.Properties.Html_id, HtmlEntity.class, HtmlEntityDao.Properties.Id)
.where(HtmlEntityDao.Properties.Url.eq(url));
return queryBuilder.list();
}
#Retrofit 使用
##转换器
retrofit RxAndroid+Retrofit环境搭建
转换器可以被添加到支持其他类型。六兄弟模块适应流行的序列化库为您提供方便。 Converters can be added to support other types. Six sibling modules adapt popular serialization libraries for your convenience.
Gson: com.squareup.retrofit2:converter-gson
Jackson: com.squareup.retrofit2:converter-jackson
Moshi: com.squareup.retrofit2:converter-moshi
Protobuf: com.squareup.retrofit2:converter-protobuf
Wire: com.squareup.retrofit2:converter-wire
Simple XML: com.squareup.retrofit2:converter-simplexml
Scalars (primitives, boxed, and String): com.squareup.retrofit2:converter-scalars
直接返回String类型需引入:ScalarsConverterFactory.create()
retrofit = new Retrofit.Builder()
.client(MyOkHttpClient.getMyOkHttpClient().getOkHttpClient())//设置不同的底层网络库
.baseUrl(strBaseUrl)
.addConverterFactory(ScalarsConverterFactory.create())//添加 String类型[ Scalars (primitives, boxed, and String)] 转换器
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())//添加 RxJava 适配器
.build();
返回Gson类型需引入:GsonConverterFactory.create()
retrofit = new Retrofit.Builder()
.client(MyOkHttpClient.getMyOkHttpClient().getOkHttpClient())//设置不同的底层网络库
.baseUrl(strBaseUrl)
.addConverterFactory(GsonConverterFactory.create())//添加 json 转换器
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())//添加 RxJava 适配器
.build();
##Retrofit 结合 RxJava使用
添加依赖
compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'
compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'
compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta4'
compile 'io.reactivex:rxandroid:1.1.0'
compile 'io.reactivex:rxjava:1.1.0'
前两个是 Retrofit 和 Gson 的依赖,第三个是 Retrofit 中 RxJava 转换器的依赖,最后两个就是 RxJava 和 Rx Android 的依赖
编写 API
使用 RxJava 的情况下,接口文件稍有修改,接口中的方法的返回类型不再是 Call 而是 Observable 类型:
public interface GitHub {
@GET("/repos/{owner}/{repo}/contributors")
Call<List<Contributor>> contributors(@Path("owner") String owner,@Path("repo") String repo);
//使用 RxJava 的方法,返回一个 Observable
@GET("/repos/{owner}/{repo}/contributors")
Observable<List<Contributor>> RxContributors(@Path("owner") String owner,@Path("repo") String repo);
}
结合 RxJava 使用的 接口就定义好了,模型类不需要变动,接下来直接进行网络请求
网络请求
使用 RxJava 的 Retrofit 可以直接在 主线程中编写。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Retrofit retrofit=new Retrofit.Builder()
.baseUrl("https://api.github.com")
.addConverterFactory(GsonConverterFactory.create())//添加 json 转换器
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())//添加 RxJava 适配器
.build();
GitHub gitHub=retrofit.create(GitHub.class);
gitHub.RxContributors("square","retrofit")
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Subscriber<List<Contributor>>() {
@Override
public void onCompleted() {
Log.i("TAG","onCompleted");
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(List<Contributor> contributors) {
for (Contributor c:contributors){
Log.i("TAG","RxJava-->"+c.getLogin()+" "+c.getId()+" "+c.getContributions());
}
}
});
}
##使用Retrofit和Okhttp实现网络缓存。无网读缓存,有网根据过期时间重新请求
okhttp 请求设置官方文档 使用Retrofit和Okhttp实现网络缓存。无网读缓存,有网根据过期时间重新请求 OuNews 新闻:RetrofitManager类下的 initOkHttpClient 方法 okhttp3.X,retrofit:2.0.0-beta4适用
配置okhttp中的Cache
OkHttpClient okHttpClient;
File cacheFile = new File(DemoActivity.this.getCacheDir(), "[缓存目录]");
Cache cache = new Cache(cacheFile, 1024 * 1024 * 10); //100Mb
okHttpClient = new OkHttpClient.Builder()
.cache(cache)
.build();
栗子:
// 完成缓存
public class MyOkHttpClient {
//设缓存有效期为两天
protected static final long CACHE_STALE_SEC = 60 * 60 * 24 * 2;
//查询缓存的Cache-Control设置,为if-only-cache时只查询缓存而不会请求服务器,max-stale可以配合设置缓存失效时间
protected static final String CACHE_CONTROL_CACHE = "only-if-cached, max-stale=" + CACHE_STALE_SEC;
//查询网络的Cache-Control设置,头部Cache-Control设为max-age=0时则不会使用缓存而请求服务器
protected static final String CACHE_CONTROL_NETWORK = "max-age=0";
private String TAG = "MyOkHttpClient";
private OkHttpClient okHttpClient;
private static MyOkHttpClient myOkHttpClient;
public static MyOkHttpClient getMyOkHttpClient() {
if (myOkHttpClient == null) {
myOkHttpClient = new MyOkHttpClient();
}
return myOkHttpClient;
}
/**
* 初始化
*
* @param mContext
*/
public void init(final Context mContext) {
if (okHttpClient != null) {
return;
}
Log.e(TAG, "初始化okHttpClient");
// 因为BaseUrl不同所以这里Retrofit不为静态,但是OkHttpClient配置是一样的,静态创建一次即可
File cacheFile = new File(
mContext.getCacheDir(),
"HttpCache"
); // 指定缓存路径
Cache cache = new Cache(cacheFile, 1024 * 1024 * 100); // 指定缓存大小100Mb
// 云端响应头拦截器,用来配置缓存策略
Interceptor rewriteCacheControlInterceptor = new Interceptor() {
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
if (!NetUtil.isConnected(mContext)) {
request = request.newBuilder()
.cacheControl(CacheControl.FORCE_CACHE).build();
Log.e(TAG, "no network");
}
Response originalResponse = chain.proceed(request);
if (NetUtil.isConnected(mContext)) {
//有网的时候读接口上的@Headers里的配置,你可以在这里进行统一的设置
String cacheControl = request.cacheControl().toString();
return originalResponse.newBuilder()
.header("Cache-Control", cacheControl)
.removeHeader("Pragma").build();
} else {
return originalResponse.newBuilder().header("Cache-Control",
"public, only-if-cached," + CACHE_STALE_SEC)
.removeHeader("Pragma").build();
}
}
};
okHttpClient = new OkHttpClient.Builder().cache(cache)
.addNetworkInterceptor(rewriteCacheControlInterceptor)
.addInterceptor(rewriteCacheControlInterceptor)
.connectTimeout(30, TimeUnit.SECONDS).build();
}
public OkHttpClient getOkHttpClient() {
return okHttpClient;
}
/**
* 根据网络状况获取缓存的策略
*
* @return
*/
@NonNull
public static String getCacheControl(Context mContext) {
return NetUtil.isConnected(mContext) ? CACHE_CONTROL_NETWORK : CACHE_CONTROL_CACHE;
}
}
配置请求头中的cache-control
//使用 RxJava 的方法,返回一个 Observable
@Headers("Cache-Control: public, max-age=3600")
@GET("/repos/{owner}/{repo}/contributors")
Observable<List<Contributor>> RxContributors(@Path("owner") String owner,@Path("repo") String repo);
配置请求 Retrofit 设置不同的底层网络库
Retrofit retrofit = new Retrofit.Builder()
.client(okHttpClient)
.baseUrl("https://api.github.com")
.addConverterFactory(GsonConverterFactory.create())//添加 json 转换器
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())//添加 RxJava 适配器
.build();
@Path:路径
@Query:查询条件,如:
xx=yy
如果有多个查询条件可以使用: @QueryMap
;
#API
永久免费的基于深度学习的中文在线抽词-PullWord API 使用
API:
http://103.37.149.178:16888/pullword/get.php?source=清华大学是好学校¶m1=0¶m2=1
//Zhihu API
public static final String BASE_URL = "http://news-at.zhihu.com/api/4/news/";//日报详情
public static final String NEWS_LATEST = "http://news-at.zhihu.com/api/4/news/latest";//最新日报
public static final String NEWS_BEFORE = "http://news-at.zhihu.com/api/4/news/before/";//指定日期的日报
public static final String SPLASH = "http://news-at.zhihu.com/api/4/start-image/1080*1920";//封面
日报详情
BASE_URL+日报ID http://news-at.zhihu.com/api/4/news/7942211
最新日报
直接访问:NEWS_LATEST http://news-at.zhihu.com/api/4/news/latest
指定日期的日报
NEWS_BEFORE+(指定日期+1天),格式为全数字,YYYYMMDD,如: 2016年02月29号的数据: http://news-at.zhihu.com/api/4/news/before/20160301
public static String DB_BREAST = "http://www.dbmeinv.com/dbgroup/show.htm?cid=2&pager_offset=";
public static String DB_BUTT = "http://www.dbmeinv.com/dbgroup/show.htm?cid=6&pager_offset=";
public static String DB_SILK = "http://www.dbmeinv.com/dbgroup/show.htm?cid=7&pager_offset=";
public static String DB_LEG = "http://www.dbmeinv.com/dbgroup/show.htm?cid=3&pager_offset=";
public static String DB_RANK="http://www.dbmeinv.com/dbgroup/rank.htm?pager_offset=";
网址
例子:
http://androidweekly.cn/page/2/
#MD实践
##侧滑 NavigationView
最快的方法是创一下新的侧滑模块
##上下拉:SwipeRefreshLayout
该使用 fitsSystemWindows 了!或该使用 fitsSystemWindows 了!
以哪个为固定:
android:fitsSystemWindows="true"
总结: 为了使得Toolbar有滑动效果,必须做到如下三点:
注:CoordinatorLayout如果是最外的布局要去掉:
1、CoordinatorLayout必须作为整个布局的父布局容器。 2、 给需要滑动的组件设置 app:layout_scrollFlags=”scroll|enterAlways” 属性。 3、给你的可滑动的组件,也就是RecyclerView 或者 NestedScrollView 设置如下属性:
app:layout_behavior="@string/appbar_scrolling_view_behavior"
RecyclerView使用介绍 base-adapter-helper的RecyclerView版
SwipeRefreshLayout.OnRefreshListener
下拉监听
RecyclerView.OnScrollListener
到底监听
recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
if (newState == RecyclerView.SCROLL_STATE_IDLE) {
onListScrolled();
}
}
});
其中 getItemViewType 用来返回当前项是哪种类型布局, getViewTypeCount 返回当前ListView总共多少种类型的布局
如果在 RecyclerView 实现多种Item,只需要实现一个 getItemType 方法,用来返回item的种类
在 onCreateViewHolder 和 onBindViewHolder 方法中,第二个参数就是item的类型
通过清理项目的缓存可解决。
第1个:
04-19 20:57:09.844 31614-31614/com.ms.meizinewsapplication E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ms.meizinewsapplication, PID: 31614
java.lang.NoSuchMethodError: No virtual method setMenuItemIconByCollect(Z)V in class Lcom/ms/meizinewsapplication/features/main/iview/DevWeekDetailIVew; or its super classes (declaration of 'com.ms.meizinewsapplication.features.main.iview.DevWeekDetailIVew' appears in /data/data/com.ms.meizinewsapplication/files/instant-run/dex/slice-slice_4-classes.dex)
at com.ms.meizinewsapplication.features.main.activity.DevWeekDetailActivity$2.onMenuItemClick(DevWeekDetailActivity.java:160)
at android.support.v7.widget.Toolbar$1.onMenuItemClick(Toolbar.java:169)
at android.support.v7.widget.ActionMenuView$MenuBuilderCallback.onMenuItemSelected(ActionMenuView.java:760)
at android.support.v7.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:811)
at android.support.v7.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:152)
at android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:958)
at android.support.v7.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:948)
at android.support.v7.widget.ActionMenuView.invokeItem(ActionMenuView.java:618)
at android.support.v7.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:139)
at android.view.View.performClick(View.java:4908)
at android.view.View$PerformClick.run(View.java:20378)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5691)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
第2个:
04-19 20:13:37.194 5338-5416/com.ms.meizinewsapplication E/AndroidRuntime: FATAL EXCEPTION: RxCachedThreadScheduler-2
Process: com.ms.meizinewsapplication, PID: 5338
java.lang.IllegalStateException: Fatal Exception thrown on Scheduler.Worker thread.
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:62)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NoSuchMethodError: No virtual method addCollectByUrl(Ljava/lang/String;Ljava/lang/String;)Z in class Lcom/ms/meizinewsapplication/features/base/utils/db/DbUtil; or its super classes (declaration of 'com.ms.meizinewsapplication.features.base.utils.db.DbUtil' appears in /data/data/com.ms.meizinewsapplication/files/instant-run/dex/slice-slice_9-classes.dex)
at com.ms.meizinewsapplication.features.base.model.CollectModel$1.call(CollectModel.java:44)
at com.ms.meizinewsapplication.features.base.model.CollectModel$1.call(CollectModel.java:39)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
at rx.internal.util.ScalarSynchronousObservable$1.call(ScalarSynchronousObservable.java:46)
at rx.internal.util.ScalarSynchronousObservable$1.call(ScalarSynchronousObservable.java:35)
at rx.Observable$2.call(Observable.java:162)
at rx.Observable$2.call(Observable.java:154)
at rx.Observable.unsafeSubscribe(Observable.java:8098)
at rx.internal.operators.OperatorSubscribeOn$1$1.call(OperatorSubscribeOn.java:62)
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
First launch take long time in Android Studio 2.0 & Gradle 2.0
app首次打开要很长时间 First launch take long time in Android Studio 2.0 & Gradle 2.0
所报日志:
04-27 10:24:16.241 12442-12450/com.ms.meizinewsapplication W/art: Suspending all threads took: 8.750ms
04-27 10:24:16.394 12442-12442/com.ms.meizinewsapplication W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
04-27 10:24:16.552 12442-12802/com.ms.meizinewsapplication D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
[ 04-27 10:24:16.554 12442:12442 D/ ]
HostConnection::get() New Host Connection established 0xb4305d40, tid 12442
04-27 10:24:16.556 12442-12442/com.ms.meizinewsapplication D/Atlas: Validating map...
原因:
在2.0版本的新功能已添加即时运行。
要启用此功能的工具添加了大量的元信息,所以第一个构建和上传需要更多的时间。
请注意有关设置的minSdkVersion 15或更高,以获得任何盈利。
In version 2.0 a new feature was added instant-run.
To enable this feature tool adds a lots of meta information, so the first build and upload takes more time.
Be aware about setting minSdkVersion 15 or higher to get any profit.
解决步骤:
1、点击:Settings → Build, Execution, Deployment → Instant Run
2、取消选择:Enable Instant Run to hot swap code/resoure changes on deploy
这样会取消功能即时运行
,但可以解决这个问题。
主要还是BaseQuickAdapter为样本,重写getItemViewType
,主要修改如下:
/**
* 返回的布局判断
* @param position
* @return
*/
@Override
public int getItemViewType(int position) {
if (position == 0 || oldCount == position) {
return TYPE_TITLE;
} else {
return TYPE_ITEM;
}
}
/**
* 对不同类型的操作
* @param viewGroup
* @param viewType
* @return
*/
@Override
public BaseAdapterHelper onCreateViewHolder(ViewGroup viewGroup, int viewType) {
View view = null;
switch (viewType) {
case TYPE_TITLE:
view = LayoutInflater.from(viewGroup.getContext()).inflate(titleLayoutResId, viewGroup, false);
break;
case TYPE_ITEM:
view = LayoutInflater.from(viewGroup.getContext()).inflate(itemLayoutResId, viewGroup, false);
break;
}
if (view == null) {
return null;
}
view.setOnClickListener(this);
BaseAdapterHelper vh = new BaseAdapterHelper(view);
return vh;
}
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