Android 来自不同活动的两个片段之间的通信？_Android_Android Studio_Android Fragments

Android 来自不同活动的两个片段之间的通信？

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Android 来自不同活动的两个片段之间的通信？,android,android-studio,android-fragments,Android,Android Studio,Android Fragments,我的应用程序中有两个活动。在MainActivity中，我正在加载2个片段Fragment1和Fragment2。从Fragment1我跳到Fragment2，从Fragment2我跳到Activity2，其中包含Fragment2\u 1从Fragment2\u 1我想跳回到main activity中的Fragment2，但我尝试这样做时出错了 java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (sales

我的应用程序中有两个活动。在

MainActivity

中，我正在加载2个片段

Fragment1

和

Fragment2

。从

Fragment1

我跳到

Fragment2

，从

Fragment2

我跳到

Activity2

，其中包含

Fragment2\u 1

从

Fragment2\u 1

我想跳回到

main activity

中的

Fragment2

，但我尝试这样做时出错了

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

我想知道是否可以从一个活动片段跳到另一个活动片段

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

我的代码是：

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FragmentTransaction fragmentTransaction=getSupportFragmentManager().beginTransaction();
        Fragment fragment1=new Fragment1();
        fragmentTransaction.replace(R.id.mainContainer,fragment1,"MainActivity");
        fragmentTransaction.addToBackStack(null);
        fragmentTransaction.commit();


    }
}

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

Fragment1.java：

public class Fragment1 extends Fragment {


    public Fragment1() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
       View view=inflater.inflate(R.layout.fragment_fragment1, container, false);
        Button buttonfrag1=(Button)view.findViewById(R.id.buttonfrag1);
        buttonfrag1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                FragmentManager fragmentManager=getActivity().getSupportFragmentManager();
                FragmentTransaction fragmentTransaction=fragmentManager.beginTransaction();
                Fragment2 fragment2 = new Fragment2();
                fragmentTransaction.replace(R.id.mainContainer,fragment2,"Fragment1");
                fragmentTransaction.addToBackStack(null);
                fragmentTransaction.commit();

            }
        });

        return view;
    }

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

Fragment2.java

public class Fragment2 extends Fragment {


    public Fragment2() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view= inflater.inflate(R.layout.fragment_fragment2, container, false);
        Button buttonfrag2=(Button)view.findViewById(R.id.buttonfrag2);
        buttonfrag2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent=new Intent(getActivity(),Activity2.class);
                startActivity(intent);

            }
        });

        return view;

    }

}

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

Activity2.java

public class Activity2 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_2);
        FragmentTransaction fragmentTransaction=getSupportFragmentManager().beginTransaction();
        Fragment2_1 fragment2_1=new Fragment2_1();
        fragmentTransaction.replace(R.id.frag2_1,fragment2_1,"Activity2");
        fragmentTransaction.commit();


    }
}

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

碎片2_1.java

public class Fragment2_1 extends Fragment {


    public Fragment2_1() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment

        View view= inflater.inflate(R.layout.fragment_fragment2_1, container, false);
        Button buttonfrag2_1=(Button)view.findViewById(R.id.buttonfrag2_1);
        buttonfrag2_1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               FragmentTransaction fragmentTransaction=getFragmentManager().beginTransaction();
                Fragment2 fragment2=new Fragment2();
                fragmentTransaction.replace(R.id.mainContainer,fragment2,"frag2_1");
                fragmentTransaction.addToBackStack(null);

                fragmentTransaction.commit();
            }
        });

        return view;
    }

}

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

所有代码都可以正常工作，但当我想从Fragment2_1移动到Fragment1时，我的应用程序崩溃，出现一个异常：

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

试试这个：在Fragment2\u 1中

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

 buttonfrag2_1.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                   Intent intent = new Intent(getActivity(), MainActivity.class);
                    intent.putExtra("frag", "fragment2");
                    startActivity(intent);
                }
            });

现在在Mainactivity

onResume（）

中，将所需的片段加载到

maincainer

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

在

main活动中

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

    @Override
public void onResume(){
  super.onResume();

  Intent intent = getIntent();

if(intent.getExtras() != null)
{
 String frag = intent.getStringExtra("frag");
}


  switch(frag){

    case "fragment2":
       //here you can load Fragment2 to your activity as usual;
        fragmentManager.beginTransaction().replace(R.id.mainContainer, new Fragment2()).commit();
       break;
  }
}

在第二个活动中的

Fragment2\u 1

中，您试图将

Fragment2

放入容器

R.id.mainCainer

。您的代码如下：

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

FragmentTransaction fragmentTransaction=getFragmentManager().beginTransaction();
Fragment2 fragment2=new Fragment2();
fragmentTransaction.replace(R.id.mainContainer,fragment2,"frag2_1");
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();

但由于您当前在第二个活动中，所以该容器不存在（它是第一个活动的一部分）。您需要再次加载

main活动

，或者通过调用

finish（）

完成

Activity2

。如果您这样做，以后的android会自动将您带回您的

main活动

，并且自从您从

Fragment2

移动到

Activity2

之后，android也会记住这一点并向您显示

Fragment2

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

您的碎片2\u 1应如下所示：

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

public class Fragment2_1 extends Fragment {

    public Fragment2_1() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment

        View view= inflater.inflate(R.layout.fragment_fragment2_1, container, false);
        Button buttonfrag2_1=(Button)view.findViewById(R.id.buttonfrag2_1);
        buttonfrag2_1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               getActivity().finish();
            }
        });

        return view;
    }

}

或，如果您只想在第二个活动中显示

片段2

，您可以执行以下操作：

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

public class Fragment2_1 extends Fragment {


    public Fragment2_1() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment

        View view= inflater.inflate(R.layout.fragment_fragment2_1, container, false);
        Button buttonfrag2_1=(Button)view.findViewById(R.id.buttonfrag2_1);
        buttonfrag2_1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               FragmentTransaction fragmentTransaction=getFragmentManager().beginTransaction();
                Fragment2 fragment2=new Fragment2();
                fragmentTransaction.replace(R.id.frag2_1,fragment2,"frag2");
                fragmentTransaction.addToBackStack(null);

                fragmentTransaction.commit();
            }
        });

        return view;
    }

}

R.id.frag2_1
是需要替换片段的容器

java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}

注意：您仍将处于第二个活动中。只有片段将被替换。

嘿，谢谢您的回复，但根据您的回答，我正在进行活动2，当用户单击Fragment2\u 1的按钮添加此

fragmentTransaction.replace（R.id.Fragment2\u 1，Fragment2，“Fragment2\u 1”）在您的Fragment2\u 1上
转到Fragment2异常发生，因为您在Fragment2\u 1的事务中向Fragment2Id传递了错误的id。先生，我知道我可以通过此操作跳过Fragment2。但是现在片段2已加载到Activity2容器中，我想将片段2加载到maincontainer中。请您帮助@rafsanahmadDid获取答案吗？检查下面我的答案@问题是，先生。我不能完成第二项活动。@champadorid你不能还是不想？
java.lang.IllegalArgumentException: No view found for id 0x7f0b0059 (saleskit.orbitsys.com.fragmentdemo:id/mainContainer) for fragment Fragment2{29eb9c90 #1 id=0x7f0b0059 frag2_1}