学步园

Intent intent=new Intent();
        intent.setClass(bmi.this, Report.class);
        startActivity(intent);

private OnClickListener calcBMI=new OnClickListener()
{
    public void onClick(View v)
    {
        Intent intent=new Intent();
        intent.setClass(bmi.this, Report.class);
        startActivity(intent);
    }
};

<application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:label="@string/app_name" android:name=".bmi">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="Report" android:label="BMI 报告"></activity>

    </application>