切換活動

Question

我正在嘗試使用按鈕切換活動。

Skillz.java

Button b2 =(Button)findViewById(R.id.button2); 
b2.setOnClickListener(new OnClickListener() { 
    public void onClick(View v) { 
     Intent myintent = new Intent(); 
     String packageName="marco.skillz.app"; 
     String className="marco.skillz.app.act2"; 
     myintent.setClassName(packageName, className); 
     startActivity(myintent); 
    } 
}); 

act2.java

@Override 
public void onCreate(Bundle savedInstanceState){ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.page2); 
} 

當在模擬器中我得到以下錯誤的應用程序運行：

The application "app name" (process marco.skillz.app) has stopped unexpectedly. 

FIXED！我覺得很愚蠢我有android：name =「。act1」，當它應該是android：name =「。act2」。

感謝您的輸入：P

Answer 1

請檢查這樣

public void onClick(View v) { 
     Intent myintent = new Intent(Skillz.this,act2.class); 
     startActivity(myintent); 

    } 

清單文件

Answer 2

嘗試添加ACT2活動這個Skillz.java在oncreate

Button b2 =(Button)findViewById(R.id.button2); 
      b2.setOnClickListener(new OnClickListener() 
      {public void onClick 
      (View v) { 
        Intent i = new Intent(getApplicationContext(), act2.class); 
         startActivity(i); 
} 
      });