android應用程序崩潰時，重定向到新的活動

我是全新的android，我創建了一個基本的活動的應用程序，然後添加一個按鈕，直接到另一個活動，它的工作，但每當我點擊按鈕去新的活動頁面，應用程式崩潰android應用程序崩潰時，重定向到新的活動

正在以下錯誤：

10/02 15:22:04: Launching app 
$ adb push C:\Users\Ahmed\AndroidStudioProjects\Shiftind\app\build\outputs\apk\app-debug.apk /data/local/tmp/com.shiftind.www.shiftind 
$ adb shell pm install -r "/data/local/tmp/com.shiftind.www.shiftind" 
Success 


$ adb shell am start -n "com.shiftind.www.shiftind/com.shiftind.www.shiftind.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER 
Client not ready yet..Waiting for process to come online 
Connected to process 2284 on device emulator-5554 
W/System: ClassLoader referenced unknown path: /data/app/com.shiftind.www.shiftind-2/lib/x86 
I/InstantRun: Instant Run Runtime started. Android package is com.shiftind.www.shiftind, real application class is null. 
W/System: ClassLoader referenced unknown path: /data/app/com.shiftind.www.shiftind-2/lib/x86 
W/art: Verification of android.support.v4.media.session.MediaControllerCompat android.support.v4.app.FragmentActivity.getSupportMediaController() took 420.734ms 
W/art: Verification of void android.support.v4.app.FragmentActivity.requestPermissionsFromFragment(android.support.v4.app.Fragment, java.lang.String[], int) took 107.527ms 
W/art: Verification of void android.support.v4.app.FragmentActivity.setEnterSharedElementCallback(android.support.v4.app.SharedElementCallback) took 102.953ms 
W/art: Verification of void android.support.v7.app.AppCompatActivity.onSupportActionModeFinished(android.support.v7.view.ActionMode) took 192.620ms 
W/art: Verification of void android.support.v4.app.FragmentManagerImpl.setHWLayerAnimListenerIfAlpha(android.view.View, android.view.animation.Animation) took 130.794ms 
W/art: Verification of android.support.v7.app.AppCompatDelegate android.support.v7.app.AppCompatDelegate.create(android.content.Context, android.view.Window, android.support.v7.app.AppCompatCallback) took 147.296ms 
W/art: Verification of void android.support.v7.app.AppCompatDelegateImplBase.<init>(android.content.Context, android.view.Window, android.support.v7.app.AppCompatCallback) took 138.730ms 
W/art: Verification of void android.support.v7.app.AppCompatDelegateImplV9.ensureSubDecor() took 166.867ms 
W/art: Verification of void android.support.v7.app.AppCompatDelegateImplV9.onConfigurationChanged(android.content.res.Configuration) took 215.247ms 
W/art: Verification of android.support.v7.view.ActionMode android.support.v7.app.AppCompatDelegateImplV9.startSupportActionModeFromWindow(android.support.v7.view.ActionMode$Callback) took 113.775ms 
W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable 
W/gralloc_ranchu: Gralloc pipe failed 

        [ 10-02 15:22:33.523 2284: 2284 D/   ] 
        HostConnection::get() New Host Connection established 0xa72c2540, tid 2284 
I/OpenGLRenderer: Initialized EGL, version 1.4 
D/OpenGLRenderer: Swap behavior 1 
I/Choreographer: Skipped 40 frames! The application may be doing too much work on its main thread. 
D/AndroidRuntime: Shutting down VM 


        --------- beginning of crash 
E/AndroidRuntime: FATAL EXCEPTION: main 
        Process: com.shiftind.www.shiftind, PID: 2284 
        java.lang.IllegalStateException: Could not execute method for android:onClick 
         at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293) 
         at android.view.View.performClick(View.java:5610) 
         at android.view.View$PerformClick.run(View.java:22260) 
         at android.os.Handler.handleCallback(Handler.java:751) 
         at android.os.Handler.dispatchMessage(Handler.java:95) 
         at android.os.Looper.loop(Looper.java:154) 
         at android.app.ActivityThread.main(ActivityThread.java:6077) 
         at java.lang.reflect.Method.invoke(Native Method) 
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
        Caused by: java.lang.reflect.InvocationTargetException 
         at java.lang.reflect.Method.invoke(Native Method) 
         at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) 
         at android.view.View.performClick(View.java:5610)  
         at android.view.View$PerformClick.run(View.java:22260)  
         at android.os.Handler.handleCallback(Handler.java:751)  
         at android.os.Handler.dispatchMessage(Handler.java:95)  
         at android.os.Looper.loop(Looper.java:154)  
         at android.app.ActivityThread.main(ActivityThread.java:6077)  
         at java.lang.reflect.Method.invoke(Native Method)  
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)  
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)  
        Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.shiftind.www.shiftind/com.shiftind.www.shiftind.registration}; have you declared this activity in your AndroidManifest.xml? 
         at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1805) 
         at android.app.Instrumentation.execStartActivity(Instrumentation.java:1523) 
         at android.app.Activity.startActivityForResult(Activity.java:4224) 
         at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:48) 
         at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:75) 
         at android.app.Activity.startActivityForResult(Activity.java:4183) 
         at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:856) 
         at android.app.Activity.startActivity(Activity.java:4507) 
         at android.app.Activity.startActivity(Activity.java:4475) 
         at com.shiftind.www.shiftind.MainActivity.onButtonClick(MainActivity.java:19) 
         at java.lang.reflect.Method.invoke(Native Method)  
         at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)  
         at android.view.View.performClick(View.java:5610)  
         at android.view.View$PerformClick.run(View.java:22260)  
         at android.os.Handler.handleCallback(Handler.java:751)  
         at android.os.Handler.dispatchMessage(Handler.java:95)  
         at android.os.Looper.loop(Looper.java:154)  
         at android.app.ActivityThread.main(ActivityThread.java:6077)  
         at java.lang.reflect.Method.invoke(Native Method)  
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)  
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)  
Application terminated.

我mainActivity.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/activity_main" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    tools:context="com.shiftind.www.shiftind.MainActivity"> 


    <Button 
     android:text="Let's Get Started" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/startbutton" 
     style="@style/Widget.AppCompat.Button.Colored" 
     android:onClick="onButtonClick" 
     android:layout_alignParentStart="true" 
     android:layout_marginStart="85dp" /> 
</RelativeLayout>

我registartion.xml（第二活性）

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

    <TextView 
     android:text="registration activity" 
     android:layout_width="wrap_content" 
     android:layout_height="111dp" 
     android:id="@+id/textView3" 
     android:layout_weight="1" 
     android:textStyle="normal|bold" /> 
</LinearLayout>

我registration.java

package com.shiftind.www.shiftind; 

import android.app.Activity; 
import android.os.Bundle; 

/** 
* Created by Ahmed on 10/2/2016. 
*/ 

public class registration extends Activity { 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.registration); 
    } 
}

我的主要activity.java

package com.shiftind.www.shiftind; 

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

public class MainActivity extends AppCompatActivity { 

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

    public void onButtonClick(View view) { 
     if (view.getId() == R.id.startbutton) { 
      Intent i = new Intent(MainActivity.this, registration.class); 
      startActivity(i); 
     } 
    } 
}

來源

2016-10-02 Ahmed Reza Siddique

閱讀例外......有你宣佈清單這項活動？ –

另外，如果你不是，那麼使用文件>新建活動比手動創建活動更受歡迎，直到你明白如何去做 –

請包括你的Android清單，我非常確定它的一些錯誤 – Kiskae

聲明第二活性你的清單文件，你應該整理出同時您的按鈕不宣

來源

2016-10-02 13:38:39 badrobot15

已經做了@Vikrant費爾南德斯，但仍然有同樣的問題 –

@ahmedRezaSiddique看到我的編輯。也避免使用onClick XML按鈕 – badrobot15

加入這一行裏面<application>標籤

<activity android:name=".registration" ></activity>

希望它有助於

來源

2016-10-02 13:38:45

已經這樣做，但沒有任何結果@Pranoy Sarkar –

添加清單文件，我會嘗試調試 –

android應用程序崩潰時，重定向到新的活動

回答

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