片段中的点击按钮事件

Question

我已经尝试了两种类型的代码来让它工作，当我按下按钮进入另一个 Activity 时，它一直给我强制关闭。我正在使用 Fragment 并且该 Fragments 代码中有一个按钮，但我似乎无法让它工作。

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.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.androidbelieve.activity.LoginActivity;
import com.androidbelieve.helper.SQLiteHandler;
import com.androidbelieve.helper.SessionManager;

import java.util.HashMap;

public class PrimaryFragment extends Fragment {

private TextView txtName;
private Button btnLogout;

private SQLiteHandler db;
private SessionManager session;

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    RelativeLayout rootView = (RelativeLayout) inflater.inflate(R.layout.primary_layout, container, false);

    txtName = (TextView) rootView.findViewById(R.id.username);
    btnLogout = (Button) rootView.findViewById(R.id.logout);

    // SqLite database handler
    db = new SQLiteHandler(getActivity().getApplicationContext());

    // session manager
    session = new SessionManager(getActivity().getApplicationContext());

    if (!session.isLoggedIn()) {
        logoutUser();
    }
    // Fetching user details from SQLite
    HashMap<String, String> user = db.getUserDetails();

    String name = user.get("name");

    // Displaying the user details on the screen
    txtName.setText(name);


    // Logout button click event
    btnLogout.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            logoutUser();
        }


    });

    Button button = (Button) rootView.findViewById(R.id.saleentry);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            updateDetail();
        }
    });
    return rootView;
}

public void updateDetail() {
    Intent intent = new Intent(getActivity(), SentFragment.class);
    startActivity(intent);
}

我试图使用按钮转到另一个页面，但总是失败。
这是我的堆栈跟踪..这是我使用 onclicklistener

时的结果

04-07 22:42:37.285 27777-27777/com.androidbelieve.drawerwithswipetabs >E/AndroidRuntime: FATAL EXCEPTION: main Process: com.androidbelieve.drawerwithswipetabs, PID: 27777 Theme: themes:{default=overlay:system, iconPack:system, fontPkg:system, >com.android.systemui=overlay:system} android.content.ActivityNotFoundException: Unable to find explicit >activity class >{com.androidbelieve.drawerwithswipetabs/com.androidbelieve.drawerwithswipet>abs.SentFragment}; have you declared this activity in your >AndroidManifest.xml? at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1801) at android.app.Instrumentation.execStartActivity(Instrumentation.java:1514) at android.app.Activity.startActivityForResult(Activity.java:3930) at android.app.Activity.startActivityForResult(Activity.java:3890) at android.support.v4.app.FragmentActivity.startActivityFromFragment(FragmentActivity.java:849) at android.support.v4.app.FragmentActivity$HostCallbacks.onStartActivityFromFragment(FragmentActivity.java:907) at android.support.v4.app.Fragment.startActivity(Fragment.java:916) at com.androidbelieve.drawerwithswipetabs.PrimaryFragment.updateDetail(PrimaryFragment.java:75) at com.androidbelieve.drawerwithswipetabs.PrimaryFragment.onClick(PrimaryFragment.java:67) at android.view.View.performClick(View.java:5204) at android.view.View$PerformClick.run(View.java:21156) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5456) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Answer 1

首先，您必须在 xml 布局中添加框架布局。

<FrameLayout
    android:id="@+id/frame_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />

然后在点击时使用此代码

 Button button = (Button) rootView.findViewById(R.id.saleentry);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {           
           Fragment fragment = new SentFragment();
            FragmentManager fragmentManager = getActivity().getSupportFragmentManager();
            FragmentTransaction fragmentTransaction =        fragmentManager.beginTransaction();
            fragmentTransaction.replace(R.id.content_frame, fragment);
            fragmentTransaction.remove(new PrimaryFragment ());
            fragmentTransaction.addToBackStack(null);
            fragmentTransaction.commit();
            }
        });

片段中的点击按钮事件

Onclick button Event in fragment

java

android

fragment

buttonclick