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  • Java 安卓工作室“；不幸的是，[项目名称]停止工作“；，有没有关于如何修复的线索

Java 安卓工作室“；不幸的是，[项目名称]停止工作“；，有没有关于如何修复的线索

java xml android-layout android-studio compiler-errors

Java 安卓工作室“；不幸的是，[项目名称]停止工作“；，有没有关于如何修复的线索,java,xml,android-layout,android-studio,compiler-errors,Java,Xml,Android Layout,Android Studio,Compiler Errors,好的，我正在尝试让我的应用程序在第一个按钮上切换到第二个活动单击并在第二个按钮上返回到第一个活动单击第二个活动。目前，我遇到了“不幸的是，[项目名称]停止工作”，我不确定为什么会出现这种情况，我将向您展示代码，让您尝试帮助我解决这个问题。对不起，代码的布局，我是新来的：D 非常感谢您的时间 SearchScreenActivity.Java activityresultsscreenActivty.java； 活动搜索屏幕.xml activityresultscreen.xml

好的，我正在尝试让我的应用程序在第一个按钮上切换到第二个活动单击并在第二个按钮上返回到第一个活动单击第二个活动。目前，我遇到了“不幸的是，[项目名称]停止工作”，我不确定为什么会出现这种情况，我将向您展示代码，让您尝试帮助我解决这个问题。对不起，代码的布局，我是新来的：D 非常感谢您的时间

SearchScreenActivity.Java activityresultsscreenActivty.java； 活动搜索屏幕.xml

activityresultscreen.xml
Manifest.xml

日志：

11-03 21:55:31.490 2043-2043/? I/art: Not late-enabling -Xcheck:jni (already on)
11-03 21:55:31.490 2043-2043/? I/art: Late-enabling JIT
11-03 21:55:31.490 2043-2043/? I/art: JIT created with      code_cache_capacity=2MB compile_threshold=1000
 11-03 21:55:32.340 2043-2043/? W/System: ClassLoader referenced unknown path: /data/app/uk.ac.city.acnh478.courseworkproject-2/lib/x86_64
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject D/AndroidRuntime: Shutting down VM
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime: FATAL EXCEPTION: main
 11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject         E/AndroidRuntime: Process: uk.ac.city.acnh478.courseworkproject, PID: 2043
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject  E/AndroidRuntime: java.lang.RuntimeException: Unable to instantiate activity  ComponentInfo{uk.ac.city.acnh478.courseworkproject/uk.ac.city.acnh478.courseworkproject.activityresultsscreenActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Window.findViewById(int)' on a null object reference
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject   E/AndroidRuntime:     at android.app.ActivityThread.-wrap11(ActivityThread.java)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:102)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:148)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5417)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at  com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:  Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Window.findViewById(int)' on a null object reference
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.Activity.findViewById(Activity.java:2090)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject  E/AndroidRuntime:     at uk.ac.city.acnh478.courseworkproject.activityresultsscreenActivity.<init>(activityresultsscreenActivity.java:16)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at java.lang.Class.newInstance(Native Method)
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
      11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:102) 
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:148) 
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5417) 
 11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method) 
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

11-03 21:55:31.490 2043-2043/？I/art:未延迟启用-Xcheck:jni（已启用）
11-03 21:55:31.490 2043-2043/? I/art：延迟启用JIT
11-03 21:55:31.490 2043-2043/? I/art:JIT创建时代码缓存容量=2MB编译阈值=1000
11-03 21:55:32.340 2043-2043/? W/System:ClassLoader引用了未知路径：/data/app/uk.ac.city.acnh478.courseworkproject-2/lib/x86_64
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject D/AndroidRuntime:关闭虚拟机
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:致命异常：main
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:Process:uk.ac.city.acnh478.courseworkproject，PID:2043
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:java.lang.RuntimeException:无法实例化活动组件信息{uk.ac.city.acnh478.courseworkproject/uk.ac.city.acnh478.courseworkproject.activityresultsscreenActivity}：java.lang.NullPointerException:尝试在空对象引用上调用虚拟方法“android.view.view android.view.Window.findViewById（int）”
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2327）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2476）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.-wrap11（ActivityThread.java）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread$H.handleMessage（ActivityThread.java:1344）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.os.Handler.dispatchMessage（Handler.java:102）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.os.Looper.loop（Looper.java:148）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.main（ActivityThread.java:5417）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at java.lang.reflect.Method.invoke（本机方法）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java:726）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:com.android.internal.os.ZygoteInit.main（ZygoteInit.java:616）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:原因：java.lang.NullPointerException:尝试在空对象引用上调用虚拟方法“android.view.view android.view.Window.findViewById（int）”
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at-android.app.Activity.findViewById（Activity.java:2090）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at uk.ac.city.acnh478.courseworkproject.activityresultsscreenActivity.（activityresultsscreenActivity.java:16）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at java.lang.Class.newInstance（本机方法）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.Instrumentation.newActivity（Instrumentation.java:1067）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2317）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2476）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.-wrap11（ActivityThread.java）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread$H.handleMessage（ActivityThread.java:1344）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.os.Handler.dispatchMessage（Handler.java:102）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.os.Looper.loop（Looper.java:148）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at android.app.ActivityThread.main（ActivityThread.java:5417）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:at java.lang.reflect.Method.invoke（本机方法）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java:726）
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:com.android.internal.os.ZygoteInit.main（ZygoteInit.java:6

package uk.ac.city.acnh478.courseworkproject;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;


public class activityresultsscreenActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activityresultsscreen);
}
final Button clickMe = (Button) findViewById(R.id.button2);

public void buttonOnClick(View v) {
    clickMe.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent myIntent = new Intent(activityresultsscreenActivity.this, SearchScreenActivity.class);
            startActivity(myIntent);
        }
        });}}



<TextView android:text="@string/titleApp" android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/textView2"
    android:background="#000000"
    android:textColor="@android:color/holo_orange_light"
    android:textSize="20dp" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/search"
    android:id="@+id/button"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="119dp"
    android:layout_below="@+id/textView2"
    android:background="#e0e0e0"
    android:textColor="#000000"
    android:onClick="switchactivityforward" />

<EditText
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/editText"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_alignRight="@+id/textView2"
    android:layout_alignEnd="@+id/textView2"
    android:layout_below="@+id/textView2"
    android:background="#dadada" />



 <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:background="#ffffff">

<ListView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/listView"
    android:layout_alignParentTop="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_marginTop="63dp"
    android:background="#1948e4"
    android:headerDividersEnabled="false" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="@string/titleRes"
    android:id="@+id/textView"
    android:layout_alignParentTop="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_marginTop="20dp"
    android:background="#000000"
    android:textColor="@android:color/holo_orange_light" />

<Button
    style="?android:attr/buttonStyleSmall"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/goback"
    android:id="@+id/button2"
    android:background="#bab8b8"
    android:textColor="#000000"
    android:textSize="12dp"
    android:layout_alignTop="@+id/textView"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true"
    android:onClick="@string/switchactivityback" />
    </RelativeLayout>



<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="uk.ac.city.acnh478.courseworkproject" >

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:supportsRtl="true"
    android:theme="@style/AppTheme" >
    <activity android:name=".SearchScreenActivity" ></activity>
    <activity android:name=".activityresultsscreenActivity" android:label="@string/app_name"></activity>

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>

</application>



11-03 21:55:31.490 2043-2043/? I/art: Not late-enabling -Xcheck:jni (already on)
11-03 21:55:31.490 2043-2043/? I/art: Late-enabling JIT
11-03 21:55:31.490 2043-2043/? I/art: JIT created with      code_cache_capacity=2MB compile_threshold=1000
 11-03 21:55:32.340 2043-2043/? W/System: ClassLoader referenced unknown path: /data/app/uk.ac.city.acnh478.courseworkproject-2/lib/x86_64
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject D/AndroidRuntime: Shutting down VM
11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime: FATAL EXCEPTION: main
 11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject         E/AndroidRuntime: Process: uk.ac.city.acnh478.courseworkproject, PID: 2043
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject  E/AndroidRuntime: java.lang.RuntimeException: Unable to instantiate activity  ComponentInfo{uk.ac.city.acnh478.courseworkproject/uk.ac.city.acnh478.courseworkproject.activityresultsscreenActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Window.findViewById(int)' on a null object reference
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject   E/AndroidRuntime:     at android.app.ActivityThread.-wrap11(ActivityThread.java)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:102)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:148)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5417)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at  com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:  Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.Window.findViewById(int)' on a null object reference
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.Activity.findViewById(Activity.java:2090)
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject  E/AndroidRuntime:     at uk.ac.city.acnh478.courseworkproject.activityresultsscreenActivity.<init>(activityresultsscreenActivity.java:16)
    11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at java.lang.Class.newInstance(Native Method)
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
      11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
     11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:102) 
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:148) 
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5417) 
 11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method) 
  11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
   11-03 21:55:33.060 2043-2043/uk.ac.city.acnh478.courseworkproject E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 



import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class SearchScreenActivity extends AppCompatActivity implements View.OnClickListener {

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

@Override
public void onClick(View v) {
    switch(v.getId()){
        case R.id.button;
            startActivity(new Intent(SearchScreenActivity.this,activityresultsscreenActivity.class));
            break;
    }
  }
}



import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class SearchScreenActivity extends AppCompatActivity {

Button clickMe2;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_search_screen);
    clickMe2 = (Button) findViewById(R.id.button);

    clickMe2.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            startActivity(new Intent(SearchScreenActivity.this,activityresultsscreenActivity.class));
        }
    });
  }
}