Android 将值传递到另一页

我是android新手。并编写此程序，但出现错误

public class First1Activity extends Activity {

    /** Called when the activity is first created. */

    public final static String x= "com.example.my.p";
    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);
    }
    public void mess(View view) {
        Intent intent=new Intent(First1Activity.this,DisMess.class);
        EditText edittext = (EditText) findViewById(R.id.editText1);
        String m= edittext.getText().toString();
        intent.putExtra(x, m);
        TextView t=(TextView)findViewById(R.id.textView1);
        t.setText(m);

            First1Activity.this.startActivity(intent);


    }
    public class DisMess extends Activity{

        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            Intent intent = getIntent();
            String message = intent.getStringExtra(First1Activity.x);
            TextView textView = new TextView(this);
            textView.setTextSize(40);
            textView.setText(message);
            setContentView(textView);

        }

    }

现在我得到了如下错误：

应用程序已停止工作

我在行中出错：First1Activity.this.startactivitycontent

请在活动1中提供帮助-

Intent i = new Intent(this, ActivityTwo.class);
i.putExtra("Value1", "This value one for ActivityTwo ");
i.putExtra("Value2", "This value two ActivityTwo");
 startActivity(i);

在活动2中-在onCreate finction中

Bundle extras = getIntent().getExtras();

if (extras == null) {
        return;
        }
// Get data via the key
String value1 = extras.getString(Intent.EXTRA_TEXT);
if (value1 != null) {
    // Do something with the data
}

================

在代码中

Intent intent=new Intent(First1Activity.this,DisMess.class);
EditText edittext = (EditText) findViewById(R.id.editText1);
String m= edittext.getText().toString();
intent.putExtra("x", m); 

及

---

确保您已在清单中声明Dismiss活动

我稍微修改了你的代码

public class First1Activity extends Activity {

public final static String key= "com.example.my.p";
private Context context;

@Override

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    context=First1Activity.this;

}
public void mess(View view) {

    EditText edittext = (EditText) findViewById(R.id.editText1);
    TextView t=(TextView)findViewById(R.id.textView1); 

    String m= edittext.getText().toString();       
    t.setText(m);   

    Intent intent=new Intent(context,DisMess.class); 
    intent.putExtra(x, m);
    startActivity(intent);
}


  public class DisMess extends Activity{

        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            Intent intent = getIntent();
            String message = intent.getStringExtra(First1Activity.x);
            TextView textView = new TextView(this);
            textView.setTextSize(40);
            textView.setText(message);
            setContentView(textView);

        }

    }

---

如果应用程序已停止工作，请添加logcat…您能否确认在menfiest中添加了Dismiss Cals….Intent i=新Intent此，ActivityTwo.class；应该有一个getApplicationContext而不是这个

public class First1Activity extends Activity {

public final static String key= "com.example.my.p";
private Context context;

@Override

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    context=First1Activity.this;

}
public void mess(View view) {

    EditText edittext = (EditText) findViewById(R.id.editText1);
    TextView t=(TextView)findViewById(R.id.textView1); 

    String m= edittext.getText().toString();       
    t.setText(m);   

    Intent intent=new Intent(context,DisMess.class); 
    intent.putExtra(x, m);
    startActivity(intent);
}


  public class DisMess extends Activity{

        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            Intent intent = getIntent();
            String message = intent.getStringExtra(First1Activity.x);
            TextView textView = new TextView(this);
            textView.setTextSize(40);
            textView.setText(message);
            setContentView(textView);

        }

    }