下一個在Eclipse

Question

我通過Eclipse中創建一個應用程序按鈕包含2個活動，我想從MainActivity去活性2，我創建按鈕，但運行不工作，你會幫我解決它

如果您需要我的其他代碼告訴我

這是我的代碼 爲MainActivity（XML）：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="#6f0fba" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context=".MainActivity" > 



    <TextView 
    android:id="@+id/textView1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentTop="true" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="136dp" 
    android:text="@string/MyNews" 
    android:textColor="#ffffff" 
    android:textSize="20sp" /> 

    <Button 
    android:id="@+id/Button01" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentBottom="true" 
    android:layout_alignParentRight="true" 
    android:layout_marginBottom="30dp" 
    android:text="@string/Next" /> 

    <LinearLayout 
    android:id="@+id/logo" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentTop="true" 
    android:orientation="vertical" > 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="match_parent" 
     android:layout_height="131dp" 
     android:src="@drawable/ic_launcher" /> 
    </LinearLayout> 

    <TextView 
    android:id="@+id/TextView01" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_centerHorizontal="true" 
    android:layout_centerVertical="true" 
    android:text="@string/Welcome" 
    android:textColor="#ffffff" 
    android:textSize="66sp" /> 
    <View 
    android:id="@+id/Button02"/> 


    </RelativeLayout> 

MainActivity（JAVA）：

package com.it332.mynews; 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 

public class MainActivity extends Activity { 
/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 

Button next = (Button) findViewById(R.id.Button01); 
next.setOnClickListener(new View.OnClickListener() { 
    public void onClick(View view) { 
     Intent myIntent = new Intent(view.getContext(), Activity2.class); 
     startActivityForResult(myIntent, 0); 
    } 

}); 

    } 
    } 

這是我menifest

<?xml version="1.0" encoding="utf-8"?> 
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.it332.mynews" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="17" 
    android:maxSdkVersion="17" /> 

    <application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <activity 
     android:name="com.it332.mynews.MainActivity" 
     android:label="@string/app_name" 
     > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
    <activity android:name=".Activity2"></activity> 
    </application> 

    </manifest> 

Answer 1

嘗試這種方式

Intent myIntent = new Intent(MainActivity.this, Activity2.class); 
startActivityForResult(myIntent, 0); 

，你必須把你的活性2在Android清單文件：

，如：

<application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name=".MainActivity" 

      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
      <activity 
      android:name=".Activity2"/> 
     </activity> 
    </application> 

Answer 2

如果您不希望在新的活動的任何結果，那麼你應該簡單地啓動活動： -

Intent myIntent = new Intent(view.getContext(), Activity2.class); 
view.getContext().startActivity(myIntent);