private NewsDao1 dao;
private RecyclerView rlv;
private List
private Button download;
private String url="http://v.juhe.cn/toutiao/index?type=&key=22a108244dbb8d1f49967cd74a0c144d";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_offline);
initView();
initDate();
}
private void initDate() {
Catogray c=new Catogray();
c.type="top";
c.name="头条";
list.add(c);
c=new Catogray();
c.type="shehui";
c.name="社会";
list.add(c);
c=new Catogray();
c.type="guonei";
c.name="国内";
list.add(c);
c=new Catogray();
c.type="guoji";
c.name="国际";
list.add(c);
c=new Catogray();
c.type="yule";
c.name="娱乐";
list.add(c);
c=new Catogray();
c.type="tiyu";
c.name="体育";
list.add(c);
c=new Catogray();
c.type="junshi";
c.name="军事";
list.add(c);
c=new Catogray();
c.type="keji";
c.name="科技";
list.add(c);
c=new Catogray();
c.type="caijing";
c.name="财经";
list.add(c);
c=new Catogray();
c.type="shishang";
c.name="时尚";
list.add(c);
RecyclerAdapter ra=new RecyclerAdapter(this,list);
rlv.setLayoutManager(new LinearLayoutManager(this));
rlv.setAdapter(ra);
ra.setOnItemClickListener(new RecyclerAdapter.OnItemClickListener() {
@Override
public void OnItemClickListener(int pos, View view) {
CheckBox checkbox = view.findViewById(R.id.check);
Catogray c= list.get(pos);
if(checkbox.isChecked())
{
checkbox.setChecked(false);
c.state=false;
}
else
{
checkbox.setChecked(true);
c.state=true;
}
list.set(pos,c);
}
});
dao = new NewsDao1(this);
}
private void initView() {
rlv = (RecyclerView) findViewById(R.id.rlv);
list = new ArrayList<>();
download = (Button) findViewById(R.id.download);
download.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(list!=null&&list.size()>0)
{
for (Catogray catogray: list ) {
//判断选中
if(catogray.state)
{
loadDate(catogray.type);
}
}
}
for (Catogray catogray: list ) {
System.out.println("state============"+catogray.state);
}
Toast.makeText(OfflineActivity.this, "数据已下载", Toast.LENGTH_SHORT).show();
}
});
}
private void loadDate(final String type)
{
RequestParams params=new RequestParams(url);
x.http().get(params,new Callback.CommonCallback(){
@Override
public void onSuccess(String result) {
dao.add(type,result);
String select = dao.select();
//Toast.makeText(OfflineActivity.this, select, Toast.LENGTH_SHORT).show();
System.out.println(select);
}
@Override
public void onError(Throwable ex, boolean isOnCallback) {
}
@Override
public void onCancelled(CancelledException cex) {
}
@Override
public void onFinished() {
}
});
}
xml
【离线下载】
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.wangaishi20170830unit1_internet.OfflineActivity"
android:weightSum="1">
android:id="@+id/rlv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_above="@+id/download"
android:layout_alignParentTop="true">
android:text="下载"
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
