频道管理

public class MainActivity extends AppCompatActivity {

    private TabLayout table;
    private ImageButton but;
    String jsonstr="";
    private ArrayList<ChannelBean> list;
    private Gson gson;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        找到控件
        table = (TabLayout) findViewById(R.id.table);
        but = (ImageButton) findViewById(R.id.but);

        添加数据
        list= new ArrayList<ChannelBean>();
        list.add(new ChannelBean("热点",true));
        list.add(new ChannelBean("军事",true));
        list.add(new ChannelBean("八卦",true));
        list.add(new ChannelBean("游戏",true));
        list.add(new ChannelBean("游戏",true));
        list.add(new ChannelBean("宠物",true));
        list.add(new ChannelBean("汽车",true));
        list.add(new ChannelBean("热卖",true));
        list.add(new ChannelBean("条目1",false));
        list.add(new ChannelBean("条目2",false));
        list.add(new ChannelBean("条目3",false));
        list.add(new ChannelBean("条目4",false));
        list.add(new ChannelBean("条目5",false));
        
        for (int i=0;i<list.size();i++){
            if (list.get(i).isSelect()){
                table.addTab(table.newTab().setText(list.get(i).getName()));
            }
        }

        but.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                switch (v.getId()){
                    case R.id.but:
                        ChannelActivity.startChannelActivity(MainActivity.this,list);
                        break;
                }
            }
        });
    }
    传值
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode==ChannelActivity.REQUEST_CODE&&resultCode==ChannelActivity.RESULT_CODE){
          jsonstr=data.getStringExtra(ChannelActivity.RESULT_JSON_KEY);

            table.removeAllTabs();
            gson= new Gson();
            Type type= new TypeToken<ArrayList<ChannelBean>>(){}.getType();
            list=gson.fromJson(jsonstr,type);
            for(int i=0;i<list.size();i++){
                if (list.get(i).isSelect()){
                    table.addTab(table.newTab().setText(list.get(i).getName()));
                }
            }
        }
    }


}