Android - 無法找到明確的活動類

Question

我知道很多人提出了同樣的問題，但我讀了所有的人，我無法找到我的錯誤。

至於所有其他問題，我有2個活動。主要的一個創造和意圖，並把一些信息捆綁，第二個接收它。

錯誤日誌

android.content.ActivityNotFoundException: Unable to find explicit activity class 
{/com.example.tkota.testintent.MapActivity}; 
have you declared this activity in your AndroidManifest.xml? 

MainActivity：

package com.example.tkota.testintent; 

import android.app.ListActivity; 
import android.content.Intent; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.view.View; 
import android.os.Bundle; 

public class MainActivity extends ListActivity{ 
String[] strings= {"Test 1","Test 2"}; 
Intent intent = new Intent(this,MapActivity.class); 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    //setContentView(R.layout.activity_main); 
    setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, strings)); 
} 

public void onListItemClick(ListView parent, View v, int position, long id){ 
    Bundle bundle = new Bundle(); 
    bundle.putString("string", strings[position]); 
    intent.putExtras(bundle); 
    startActivity(intent); 
    } 
} 

MapActivity：

package com.example.tkota.testintent; 

import android.app.Activity; 
import android.app.ListActivity; 
import android.os.Bundle; 
import android.webkit.WebView; 
import android.widget.Button; 
import android.widget.EditText; 

public class MapActivity extends Activity{ 
Button actualizar; 
EditText txtDireccion; 
WebView myWebView; 
public String direccion = new String(""); 
public String urlDefault = new String("http://maps.google.com/maps?q="); 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_map); 
    actualizar = (Button) this.findViewById(R.id.btnActualizar); 
    txtDireccion = (EditText) this.findViewById(R.id.txtDireccion); 
    myWebView = (WebView) this.findViewById(R.id.webView); 

    Bundle bundle = this.getIntent().getExtras(); 
    direccion = bundle.getString("string"); 
    txtDireccion.setText(direccion); 
    myWebView.loadUrl(urlDefault+direccion); 

    } 
} 

清單：

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.tkota.testintent" > 
    <application 
     android:allowBackup="true" 
     android:icon="@mipmap/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> 
     <activity 
      android:name=".MapActivity" 
      android:label="TestIntent"/> 
    </application> 

</manifest> 

我閱讀了這些答案https://stackoverflow.com/a/9552169/2257448，我更新了所有Android API和Eclipse。問題仍然存在，所以我在Android Studio上創建了相同的應用程序，仍然沒有解決方案。

我試圖把這個完整的包信息也放在這個清單上。

<activity 
    android:name="com.example.tkota.testintent.MapActivity" 
    android:label="TestIntent"/> 

任何想法？

編輯

由於Karan Mer寫上註釋的問題是通過創建內部onListItemClick

意圖解決這樣的代碼將是這些：

package com.example.tkota.testintent; 

import android.app.ListActivity; 
import android.content.Intent; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.view.View; 
import android.os.Bundle; 

public class MainActivity extends ListActivity{ 
String[] strings= {"Test 1","Test 2"}; 
Intent intent = new Intent(this,MapActivity.class); 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    //setContentView(R.layout.activity_main); 
    setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, strings)); 
} 

public void onListItemClick(ListView parent, View v, int position, long id){ 
    Intent intent = new Intent(MainActivity.this,MapActivity.class); 
    Bundle bundle = new Bundle(); 
    bundle.putString("string", strings[position]); 
    intent.putExtras(bundle); 
    startActivity(intent); 
    } 
} 

Answer 1

嘗試創造listonitemclick你的意圖如下

public void onListItemClick(ListView parent, View v, int position, long id){ 

    Bundle bundle = new Bundle(); 
    intent = new Intent(getapplicationcontext(),MapActivity.class); 
    bundle.putString("string", strings[position]); intent.putExtras(bundle); 
    startActivity(intent); 
} 

Answer 2

由於Karan Mer寫道：在評論上，問題通過創建上的意圖解決istItemClick

因此，代碼將是這些：

package com.example.tkota.testintent; 

import android.app.ListActivity; 
import android.content.Intent; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.view.View; 
import android.os.Bundle; 

public class MainActivity extends ListActivity{ 
String[] strings= {"Test 1","Test 2"}; 
Intent intent = new Intent(this,MapActivity.class); 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    //setContentView(R.layout.activity_main); 
    setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, strings)); 
} 

public void onListItemClick(ListView parent, View v, int position, long id){ 
    Intent intent = new Intent(MainActivity.this,MapActivity.class); 
    Bundle bundle = new Bundle(); 
    bundle.putString("string", strings[position]); 
    intent.putExtras(bundle); 
    startActivity(intent); 
    } 
} 

Answer 3

清單文件，這樣註冊你的第二個活動，將工作

<activity 
     android:name="com.example.tkota.testintent.MapActivity" 
     android:label="TestIntent"/> 

而你需要調用第二幕ivity like this

public void onListItemClick(ListView parent, View v, int position, long id){ 
    Intent intent = new Intent(MainActivity.this,MapActivity.class); 
    Bundle bundle = new Bundle(); 
    bundle.putString("string", strings[position]); 
    intent.putExtras(bundle); 
    startActivity(intent); 
    } 
}