android 模仿今日头条ViewPager+TabLayout

导入依赖库:
compile 'com.android.support:design:25.3.1'
1.fg_content_demo2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="123"
android:gravity="center"
android:id="@+id/fg_content_demo2_textview"/>
</LinearLayout>
2.Demo2Fragment
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.TextView;
import com.example.mac.mainapplication.R;
import com.example.mac.mainapplication.adapter.MainAdapter;
import org.w3c.dom.Text;
/**
* Created by mac on 17/6/16.
*/
public class Demo2Fragment extends Fragment {
private TextView textView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fg_content_demo2, container, false);
// tv_content = (TextView) view.findViewById(R.id.tv_content);
// String text = getArguments().getString("text");
// tv_content.setText(text);
textView = (TextView)view.findViewById(R.id.fg_content_demo2_textview);
String text = getArguments().getString("text");
textView.setText(text);
return view;
}
// fg_content_demo2_textview
}
Demo2Adaper代码
public class Demo2Adapter extends FragmentPagerAdapter {
private final String[] titles;
private Context context;
private List<Fragment> fragments;
public Demo2Adapter(List<Fragment> fragments, String[] titles, FragmentManager fm, Context context) {
super(fm);
this.context = context;
this.fragments = fragments;
this.titles = titles;
}
@Override
public Fragment getItem(int position) {
return fragments.get(position);
}
@Override
public int getCount() {
return titles.length;
}
@Override
public CharSequence getPageTitle(int position) {
return titles[position];
}
}
3.main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#d33c3c"
android:gravity="center_vertical"
android:orientation="horizontal">
<android.support.design.widget.TabLayout
android:id="@+id/demo2_tablayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
app:tabIndicatorColor="@color/colorPrimary"
app:tabMode="scrollable">
</android.support.design.widget.TabLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="8dp"
android:src="@drawable/ic_launcher"/>
</LinearLayout>
<android.support.v4.view.ViewPager
android:id="@+id/demo2_viewPager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
</android.support.v4.view.ViewPager>
</LinearLayout>
4.main代码:
private LinearLayout backLayout;
private String[]titles = {"项目1","项目2","项目4","项目5","项目6","项目7","项目8","项目9","项目10","项目11"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_demo2);
backLayout = (LinearLayout)findViewById(R.id.default_nav_left_layout);
backLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onBackPressed();
}
});
ViewPager viewPager = (ViewPager) findViewById(R.id.demo2_viewPager);
List<Fragment> fragments = new ArrayList<>();
for (int i = 0; i < titles.length; i++) {
Fragment fragment = new Demo2Fragment();
Bundle bundle = new Bundle();
bundle.putString("text",titles[i]);
fragment.setArguments(bundle);
fragments.add(fragment);
}
viewPager.setAdapter(new Demo2Adapter(fragments, titles, getSupportFragmentManager(), this));
// 初始化
TabLayout tablayout = (TabLayout) findViewById(R.id.demo2_tablayout);
// 将ViewPager和TabLayout绑定
tablayout.setupWithViewPager(viewPager);
// 设置tab文本的没有选中(第一个参数)和选中(第二个参数)的颜色
tablayout.setTabTextColors(getResources().getColor(R.color.colorPrimaryDark), Color.WHITE);
}
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