点击按钮后Android studio应用程序崩溃_Android_Android Studio_Android Layout_Android Fragments_Android Button

点击按钮后Android studio应用程序崩溃

android android-studio android-layout android-fragments

点击按钮后Android studio应用程序崩溃,android,android-studio,android-layout,android-fragments,android-button,Android,Android Studio,Android Layout,Android Fragments,Android Button,当我按下编辑按钮时，程序崩溃并停止工作。我需要帮助这是为了一份大学的工作，我不知道哪里出了问题 **错误是：** E/AndroidRuntime: FATAL EXCEPTION: main Process: pjurado.com.a05reciclerviewobjeto, PID: 14577 java.lang.IllegalStateException: Could not execute method for android:onClick at

当我按下编辑按钮时，程序崩溃并停止工作。

我需要帮助这是为了一份大学的工作，我不知道哪里出了问题

**错误是：**

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: pjurado.com.a05reciclerviewobjeto, PID: 14577
    java.lang.IllegalStateException: Could not execute method for android:onClick
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:414)
        at android.view.View.performClick(View.java:6256)
        at android.view.View$PerformClick.run(View.java:24701)
        at android.os.Handler.handleCallback(Handler.java:789)
        at android.os.Handler.dispatchMessage(Handler.java:98)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6541)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:409)
        at android.view.View.performClick(View.java:6256) 
        at android.view.View$PerformClick.run(View.java:24701) 
        at android.os.Handler.handleCallback(Handler.java:789) 
        at android.os.Handler.dispatchMessage(Handler.java:98) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6541) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 
     Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {pjurado.com.a05reciclerviewobjeto/pjurado.com.a05reciclerviewobjeto.AdapterDirectorio}; have you declared this activity in your AndroidManifest.xml?
        at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1932)
        at android.app.Instrumentation.execStartActivity(Instrumentation.java:1615)
        at android.app.Activity.startActivityForResult(Activity.java:4472)
        at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:676)
        at android.app.Activity.startActivityForResult(Activity.java:4430)
        at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:663)
        at android.app.Activity.startActivity(Activity.java:4791)
        at android.app.Activity.startActivity(Activity.java:4759)
        at pjurado.com.a05reciclerviewobjeto.Editar.onClick(Editar.java:24)

Android_manifest.xml

    <?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="pjurado.com.a05reciclerviewobjeto">
    
        <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:roundIcon="@mipmap/ic_launcher_round"
            android:supportsRtl="true"
            android:theme="@style/AppTheme">
            <activity android:name=".MainActivity">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
            <activity android:name=".Editar" />
        </application>

</manifest>

Editar.java

package pjurado.com.a05reciclerviewobjeto;

import android.content.Intent;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.util.Log;
import android.view.View;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

public class Editar extends AppCompatActivity {


    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.modificacion);

    }

    public void onClick(View v){
        Intent intent = new Intent(Editar.this, AdapterDirectorio.class);
        startActivity(intent);
    }

}
```
```
mainActivity.java
package pjurado.com.a05reciclerviewobjeto;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.Intent;
import android.media.Image;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;

import java.util.ArrayList;

import static androidx.core.content.ContextCompat.startActivity;

public class MainActivity extends AppCompatActivity {
    private ArrayList<Contacto> directorio = new ArrayList<>();
    private RecyclerView myRecyclerView;
    private AdapterDirectorio myAdapter;

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

        creaDatos();

        myRecyclerView = findViewById(R.id.recyclerView);
        myRecyclerView.setHasFixedSize(true);

        LinearLayoutManager layoutManager = new LinearLayoutManager(this);
        myRecyclerView.setLayoutManager(layoutManager);

        myAdapter = new AdapterDirectorio(directorio);

        myRecyclerView.setAdapter(myAdapter);

        


    }

    private void creaDatos(){
        directorio.add(new Contacto("Pedro Jurado", "987123456", "pjurado@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Pepe Pérez", "987121256", "ppe@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
        directorio.add(new Contacto("Antonio Gómex", "934643456", "aoox@gmail.com", R.drawable.foto));
    }
}

包pjurado.com.a05reciclerviewobjeto；
导入android.content.Intent；
导入android.os.Bundle；
导入android.os.PersistableBundle；
导入android.util.Log；
导入android.view.view；
导入androidx.annotation.Nullable；
导入androidx.appcompat.app.appcompat活动；
公共类Editar扩展了appcompative活动{
@凌驾
创建时的公共void（@Nullable Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.Modification）；
}
公共void onClick（视图v）{
Intent Intent=新Intent（Editar.this、AdapterDirectorio.class）；
星触觉（意向）；
}
}
```
```
mainActivity.java
包装pjurado.com.a05reciclerviewobjeto；
导入androidx.appcompat.app.appcompat活动；
导入androidx.recyclerview.widget.LinearLayoutManager；
导入androidx.recyclerview.widget.recyclerview；
导入android.content.Intent；
导入android.media.Image；
导入android.net.Uri；
导入android.os.Bundle；
导入android.view.view；
导入android.widget.ImageButton；
导入java.util.ArrayList；
导入静态androidx.core.content.ContextCompat.startActivity；
公共类MainActivity扩展了AppCompatActivity{
private ArrayList directorio=new ArrayList（）；
私人回收视图myRecyclerView；
专用适配器DirectorIO myAdapter；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
creaDatos（）；
myRecyclerView=findViewById（R.id.recyclerView）；
myRecyclerView.setHasFixedSize（true）；
LinearLayoutManager layoutManager=新的LinearLayoutManager（此）；
myRecyclerView.setLayoutManager（layoutManager）；
myAdapter=新的AdapterDirectorio（directorio）；
myRecyclerView.setAdapter（myAdapter）；
}
私有无效creaDatos（）{
添加（新联系人（“Pedro Jurado”，“987123456”pjurado@gmail.com“，R.drawable.foto））；
添加（新联系人）（“Pepe Pérez”，“987121256”ppe@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
增加（新合同（“Antonio Gómex”，“934643456”aoox@gmail.com“，R.drawable.foto））；
}
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</FrameLayout>

item_list.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:elevation="@dimen/cardview_default_elevation"
    android:layout_marginBottom="8dp"
    android:padding="10dp"
    card_view:cardBackgroundColor="@color/colorPrimary">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/imageView"
            android:layout_width="48dp"
            android:layout_height="48dp"
            tools:srcCompat="@tools:sample/avatars" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/textViewNombre"
                android:layout_width="497dp"
                android:layout_height="wrap_content"
                android:layout_margin="10dp"
                android:textColor="@android:color/white"
                android:textSize="18sp" />

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <TextView
                    android:id="@+id/textViewTelefono"
                    android:layout_width="164dp"
                    android:layout_height="51dp"
                    android:layout_margin="10dp"
                    android:layout_marginTop="8dp"
                    android:textColor="@android:color/white"
                    card_view:layout_constraintEnd_toStartOf="@+id/imageButton5"
                    card_view:layout_constraintHorizontal_bias="0.0"
                    card_view:layout_constraintStart_toStartOf="parent"
                    card_view:layout_constraintTop_toTopOf="parent" />

                <ImageButton
                    android:id="@+id/imageButton5"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:layout_weight="1"
                    android:background="@drawable/boton_redondo"
                    android:visibility="visible"
                    card_view:layout_constraintBottom_toBottomOf="parent"
                    card_view:layout_constraintEnd_toStartOf="@+id/imageButton4"
                    card_view:layout_constraintTop_toTopOf="parent"
                    card_view:srcCompat="@android:drawable/ic_menu_call" />

                <ImageButton
                    android:id="@+id/imageButton4"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:layout_marginEnd="8dp"
                    android:background="@drawable/boton_redondo"
                    android:contentDescription="TODO"
                    android:visibility="visible"
                    card_view:layout_constraintBottom_toBottomOf="parent"
                    card_view:layout_constraintEnd_toStartOf="@+id/botonEdicion"
                    card_view:layout_constraintTop_toTopOf="parent"
                    card_view:srcCompat="@android:drawable/ic_dialog_email" />

                <ImageButton
                    android:id="@+id/botonEdicion"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:layout_weight="1"
                    android:background="@drawable/boton_redondo"
                    android:visibility="visible"
                    card_view:layout_constraintBottom_toBottomOf="parent"
                    card_view:layout_constraintEnd_toEndOf="parent"
                    card_view:layout_constraintTop_toTopOf="parent"
                    card_view:srcCompat="@android:drawable/ic_menu_edit" />
            </androidx.constraintlayout.widget.ConstraintLayout>

            <LinearLayout
                android:layout_width="395dp"
                android:layout_height="wrap_content"
                android:orientation="horizontal">

            </LinearLayout>

            <TextView
                android:id="@+id/textViewEmail"
                android:layout_width="494dp"
                android:layout_height="wrap_content"
                android:layout_margin="10dp"
                android:textColor="@android:color/white" />
        </LinearLayout>
    </LinearLayout>

</androidx.cardview.widget.CardView>

modificacion.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="88dp"
        android:ems="10"
        android:hint="Nombre y apellidos"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.079"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:ems="10"
        android:hint="Email"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.079"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/editText3" />

    <EditText
        android:id="@+id/editText3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:ems="10"
        android:hint="Telefono"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.079"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/editText1" />

    <TextView
        android:id="@+id/textView6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="28dp"
        android:text="Modificación de datos"
        android:textColor="#000000"
        android:textSize="25sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.098"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <Button
        android:id="@+id/buttonAceptacion"
        android:layout_width="165dp"
        android:layout_height="46dp"
        android:layout_marginTop="28dp"
        android:onClick="onClick"
        android:text="Confrimar"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/editText2" />
</androidx.constraintlayout.widget.ConstraintLayout>

boton_redondo.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <solid android:color="#ffffff"></solid>
    <size android:height="50dp" android:width="50dp"></size>

</shape>

您正在调用意图中的适配器，您应该在其中调用活动。在MainActivity.java中正确设置了适配器。考虑一下你需要为EdjAR.java调用的类，用特定的活动替换AdapterDirectorio.class。

public void onClick(View v){
    Intent intent = new Intent(Editar.this, ModificationActivity.class);
    startActivity(intent);
}

Intent Intent=新Intent（Editar.this、AdapterDirectorio.class）；星触觉（意向）；您正在这里调用适配器类，这就是问题所在。要在@ShamirKp comment上展开，您只能使用

startActivity（）

启动另一个在

Android_清单

中声明的活动，这就是为什么您会看到错误

无法找到显式活动类{[…]。AdapterDirectorio}；您是否在AndroidManifest.xml中声明了此活动？

。由于清单中只有两个活动：

MainActivity

和

Editar

，您打算启动哪个活动？

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <solid android:color="#ffffff"></solid>
    <size android:height="50dp" android:width="50dp"></size>

</shape>

public void onClick(View v){
    Intent intent = new Intent(Editar.this, ModificationActivity.class);
    startActivity(intent);
}