package com.xujun.contralayout.UI.weibo; import android.os.Bundle; import android.support.design.widget.CoordinatorLayout; import android.support.design.widget.TabLayout; import android.support.v4.app.Fragment; import android.support.v4.view.ViewPager; import android.support.v7.widget.Toolbar; import android.view.View; import android.widget.Toast; import com.xujun.contralayout.R; import com.xujun.contralayout.UI.ListFragment; import com.xujun.contralayout.UI.weibo.behavior.WeiboHeaderPagerBehavior; import com.xujun.contralayout.base.BaseFragmentAdapter; import com.xujun.contralayout.base.BaseMVPActivity; import com.xujun.contralayout.base.mvp.IBasePresenter; import java.util.ArrayList; import java.util.List; public class WeiboSampleActivity extends BaseMVPActivity implements WeiboHeaderPagerBehavior.OnPagerStateListener { ViewPager mViewPager; List<Fragment> mFragments; Toolbar mToolbar; String[] mTitles = new String[]{ "主页", "微博", "相册" }; private View mHeaderView; private WeiboHeaderPagerBehavior mHeaderPagerBehavior; private View mIvBack; @Override protected IBasePresenter setPresenter() { return null; } @Override protected int getContentViewLayoutID() { return R.layout.activity_weibo_sample; } @Override protected void initView() { mViewPager = (ViewPager) findViewById(R.id.viewpager); mHeaderView = findViewById(R.id.id_weibo_header); mIvBack = findViewById(R.id.iv_back); mIvBack.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { handleBack(); } }); mIvBack.setVisibility(View.INVISIBLE); findViewById(R.id.iv).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(WeiboSampleActivity.this," 点击 header", Toast.LENGTH_SHORT).show(); } }); } @Override protected void initData(Bundle savedInstanceState) { super.initData(savedInstanceState); setupViewPager(); CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) mHeaderView.getLayoutParams(); mHeaderPagerBehavior = (WeiboHeaderPagerBehavior) layoutParams.getBehavior(); mHeaderPagerBehavior.setPagerStateListener(this); } private void setupViewPager() { final ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager); setupViewPager(viewPager); TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); tabLayout.setupWithViewPager(viewPager); } private void setupViewPager(ViewPager viewPager) { mFragments = new ArrayList<>(); for (int i = 0; i < mTitles.length; i++) { ListFragment listFragment = ListFragment.newInstance(mTitles[i]); mFragments.add(listFragment); } BaseFragmentAdapter adapter = new BaseFragmentAdapter(getSupportFragmentManager(), mFragments, mTitles); viewPager.setAdapter(adapter); } @Override public void onPagerClosed() { Toast.makeText(this, "关闭了", Toast.LENGTH_SHORT).show(); mIvBack.setVisibility(View.VISIBLE); for(Fragment fragment:mFragments){ ListFragment listFragment= (ListFragment) fragment; listFragment.tooglePager(false); } } @Override public void onPagerOpened() { Toast.makeText(this, "打开了", Toast.LENGTH_SHORT).show(); mIvBack.setVisibility(View.INVISIBLE); for(Fragment fragment:mFragments){ ListFragment listFragment= (ListFragment) fragment; listFragment.tooglePager(true); } } @Override public void onBackPressed() { handleBack(); } private void handleBack() { if(mHeaderPagerBehavior.isClosed()){ mHeaderPagerBehavior.openPager(); return; } finish(); } }