Layout布局 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.design.widget.TabLayout android:id="@+id/tab_title" android:layout_width="match_parent" android:layout_height="wrap_content" tabMode="scrollable" /> <ImageView android:id="@+id/btn_add" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/a" android:layout_alignParentRight="true" android:padding="10dp"/> </RelativeLayout>
MainActivity
public class MainActivity extends AppCompatActivity { private TabLayout tabTitle; private ImageView btnAdd; private List<ChannelBean> beanList; private String stringExtra; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tabTitle = findViewById(R.id.tab_title); btnAdd = findViewById(R.id.btn_add); beanList = new ArrayList<>(); beanList.add(new ChannelBean("热点",true)); beanList.add(new ChannelBean("新闻",true)); beanList.add(new ChannelBean("娱乐",true)); beanList.add(new ChannelBean("国际",true)); beanList.add(new ChannelBean("国内",true)); beanList.add(new ChannelBean("社会",true)); beanList.add(new ChannelBean("亲子",false)); beanList.add(new ChannelBean("旅游",false)); beanList.add(new ChannelBean("财经",false)); beanList.add(new ChannelBean("美食",false)); for (int i = 0; i < beanList.size(); i++){ if (beanList.get(i).isSelect()){ tabTitle.addTab(tabTitle.newTab().setText(beanList.get(i).getName())); } } tabTitle.setTabMode(TabLayout.MODE_SCROLLABLE); btnAdd.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //ChannelBean ChannelActivity.startChannelActivity(MainActivity.this,beanList); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == ChannelActivity.REQUEST_CODE && resultCode == ChannelActivity.RESULT_CODE){ stringExtra = data.getStringExtra(ChannelActivity.RESULT_JSON_KEY); tabTitle.removeAllTabs(); Gson gson = new Gson(); gson.fromJson(stringExtra,new TypeToken<List<Bean>>(){}.getType()); for (int i = 0; i < beanList.size(); i++){ if (beanList.get(i).isSelect()){ tabTitle.addTab(tabTitle.newTab().setText(beanList.get(i).getName())); } } } } }