Question

我必须制作包含3个活动的项目。第1和第2活动包含2个选项卡，第3活动需要3个选项卡。我是否需要为每项活动制作3个Pager条款？或者，如果One Pager.class可以处理所有选项卡，那么我们如何对其进行排序？感谢所有提前！

Answer 1

您可以使用同一个班级。只需确保被覆盖的方法可以区分它所处的活动。因此getCount()中的FragmentPagerAdapter作为示例会在第1和第2个活动中返回2，但在第3个活动中返回3个。布局也是如此。

Answer 2

是的，您可以为每个活动使用此pageradapter类。它将在活动中创建您想要的大小

workspace = c:\tools\jenkins\workspace\PerformanceTesting
[Pipeline] echo
env.WORKSPACE = c:\tools\jenkins\workspace\PerformanceTesting
[Pipeline] step
Archiving artifacts
Recording fingerprints
[Pipeline] step
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
java.io.FileNotFoundException: c:\tools\jenkins\workspace\PerformanceTesting\jmeter_scripts\jenkins_test_results.jtl (The system cannot find the path specified)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(Unknown Source)
    at java.io.FileInputStream.<init>(Unknown Source)
    at java.io.FileReader.<init>(Unknown Source)
    at hudson.plugins.performance.parsers.ParserDetector.detect(ParserDetector.java:21)
    at hudson.plugins.performance.parsers.ParserFactory.getParser(ParserFactory.java:26)
    at hudson.plugins.performance.PerformancePublisher.getParsers(PerformancePublisher.java:439)
    at hudson.plugins.performance.PerformancePublisher.perform(PerformancePublisher.java:481)
    at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:69)
    at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:59)
    at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:52)
    at hudson.security.ACL.impersonate(ACL.java:221)
    at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:49)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Finished: FAILURE

Answer 3

您可以使用相同的PagerAdapter课程。以下是PagerAdapter示例。

<强> TabsPagerAdapter.java

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import java.util.ArrayList;
import java.util.List;

public class TabsPagerAdapter extends FragmentPagerAdapter {

    private final List<Fragment> mFragmentList = new ArrayList<>();
    private final List<String> mFragmentTitleList = new ArrayList<>();

    public TabsPagerAdapter(FragmentManager manager) {
        super(manager);
    }

    @Override
    public Fragment getItem(int position) {
        return mFragmentList.get(position);
    }

    @Override
    public int getCount() {
        return mFragmentList.size();
    }

    public void addFrag(Fragment fragment, String title) {
        mFragmentList.add(fragment);
        mFragmentTitleList.add(title);
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return mFragmentTitleList.get(position);
    }
}

来自FirstActivity.java：

TabLayout mTabLayout;
ViewPager mViewPager;
TabsPagerAdapte mAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_first);

    // Tab layout
    mTabLayout = (TabLayout) findViewById(R.id.tabs);

    // View pager
    mViewPager  = (ViewPager) findViewById(R.id.view_pager);

    // Adapter
    mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

    // 2 Tabs
    mAdapter.addFrag(new FragmentOne(), "ONE");
    mAdapter.addFrag(new FragmentTwo(), "TWO");

    mViewPager.setAdapter(mAdapter);

    mTabLayout.setupWithViewPager(mViewPager);
    mTabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {

            mViewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });
}

来自SecondActivity.java：

TabLayout mTabLayout;
ViewPager mViewPager;
TabsPagerAdapte mAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_second);

    // Tab layout
    mTabLayout = (TabLayout) findViewById(R.id.tabs);

    // View pager
    mViewPager  = (ViewPager) findViewById(R.id.view_pager);

    // Adapter
    mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

    // 2 Tabs
    mAdapter.addFrag(new FragmentOne(), "ONE");
    mAdapter.addFrag(new FragmentTwo(), "TWO");

    mViewPager.setAdapter(mAdapter);

    mTabLayout.setupWithViewPager(mViewPager);
    mTabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {

            mViewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });
}

来自ThirdActivity.java：

TabLayout mTabLayout;
ViewPager mViewPager;
TabsPagerAdapte mAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_third);

    // Tab layout
    mTabLayout = (TabLayout) findViewById(R.id.tabs);

    // View pager
    mViewPager  = (ViewPager) findViewById(R.id.view_pager);

    // Adapter
    mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

    // 3 Tabs
    mAdapter.addFrag(new FragmentOne(), "ONE");
    mAdapter.addFrag(new FragmentTwo(), "TWO");
    mAdapter.addFrag(new FragmentThree(), "THREE");

    mViewPager.setAdapter(mAdapter);

    mTabLayout.setupWithViewPager(mViewPager);
    mTabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {

            mViewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {

        }
    });
}

希望这会有所帮助〜

如果我们想在多个活动中添加标签，我们是否需要多个Pager（viewpager）类？

3 个答案: