我在实现MainActivity中的一些按钮时遇到了挑战，当每个按钮被点击时，应该会带我到Fragment类，我还有其他的按钮要设置来启动Fragment activity。 现在这些片段通过适配器托管在Tip4Activity上。

我的问题是如何创建一个按钮，当点击时，它应该带我到Page1Fragment？ 然后与可行的类似操作，我会很好地创建其他按钮

这就是我在Mainactivity.java中所做的。

Tips3 = (Button)findViewById(R.id.mybtn1);
        Tips3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Fragment fragment= new Page1Fragment();
                FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
                transaction.replace(R.id.container, fragment); 
                transaction.addToBackStack(null);  
                transaction.commit();
            }
        });

activity_main.xml中的按钮

null

 <Button
            android:id="@+id/mybtn1"
            style="?buttonBarButtonStyle"
            android:layout_width="300dp"
            android:layout_height="40dp"
            android:layout_marginTop="13dp"
            android:layout_weight="1"
            android:layout_gravity="center"
            android:text="The Preparation"
            android:textColor="#ffffff"
            android:textSize="17sp"
            android:textStyle="bold" />

null

这是我的Page1片段，Java

private static final String TAG = "Page1Fragment ----- ; ";
    // Store instance variables
    private String title;
    private int page;
    private ConsentForm form;


    //Store instance variables based on arguments passed
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        page = getArguments().getInt("SomeInt", 1);
        title = getArguments().getString("someTitle");
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_page1, container, false);


        // set the html content for TextView
        TextView newTextView = (TextView) v.findViewById(R.id.Tv1);
        newTextView.setText(Html.fromHtml(getString(R.string.htmlFormattedText1)));
        return v;
    }
    

    // newInstance constructor for creating fragments with arguments
    public static Page1Fragment newInstance(int page, String title) {
        Page1Fragment Page1Fragment = new Page1Fragment();
        Bundle args = new Bundle();
        args.putInt("someInt", page);
        args.putString("someTitle", title);
        Page1Fragment.setArguments(args);
        return Page1Fragment;
    }
}

这是在适配器tips_4.xml的帮助下托管所有片段的activity

 public class Tips_4 extends AppCompatActivity {
    Toolbar toolbar;
    TabLayout tabLayout;
    ViewPager viewPager;
    Button Tips3;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tips_4);

        //--------add click listener here ----------------------
        Tips3 = (Button)findViewById(R.id.mybtn1);
        Tips3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Fragment fragment= new Page1Fragment();
                FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
                transaction.replace(R.id.container, fragment);
                transaction.addToBackStack(null);
                transaction.commit();
            }
        });

        toolbar= findViewById(R.id.app_bar);
        setSupportActionBar(toolbar);

        ViewPager viewPager= (ViewPager) findViewById(R.id.view_pager);
        viewPager.setAdapter(new SimpleFragmentPageAdapter(getSupportFragmentManager(),this));

        //Attach the page change listener inside the activity
        viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            // This method will be invoked when a new page becomes selected
            @Override
            public void onPageSelected(int position) {
                Toast.makeText(Tips_4.this, "Selected Fragment Page:" + position, Toast.LENGTH_SHORT).show();
            }
            // This method will be invoked when the current page is scrolled
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetpixels) {

            }
            // Called when the scroll state changes:
            //SCROLL_STATE_IDLE, SCROLL_STATE_DRAGGING, SCROLL_STATE_SETTLING
            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });


        tabLayout= (TabLayout) findViewById(R.id.tab_layout);
        tabLayout.setupWithViewPager(viewPager);


    }

这是异常跟踪

 --------- beginning of crash
2020-07-20 15:58:48.515 15613-15613/com.joseph.advancedmaths E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.joseph.advancedmaths, PID: 15613
    java.lang.IllegalArgumentException: No view found for id 0x7f080067 (com.joseph.advancedmaths:id/container) for fragment Page1Fragment{8075d59 #0 id=0x7f080067}
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1454)
        at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1784)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManager.java:1852)
        at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:802)
        at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManager.java:2625)
        at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2411)
        at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2366)
        at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2273)
        at androidx.fragment.app.FragmentManagerImpl$1.run(FragmentManager.java:733)
        at android.os.Handler.handleCallback(Handler.java:790)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6549)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:888)