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我有来自“项目库”的用户组件的“项目库”和“主应用程序”。我想从我的“主应用程序”中的“项目库”中获取视图。“主应用程序”的代码是：

package xliiv.sandbox;

import xliiv.sandbox.library.R;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class MyProjectMainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView tv = (TextView) findViewById(xliiv.sandbox.library.R.??);
    }
}

Eclipse 不提示任何 id，与 R 中的其他项目（布局、可绘制、字符串、..）相反。我手动检查 xliiv.sandbox.library.R （来自我的“项目库”的文件）：

/* AUTO-GENERATED FILE.  DO NOT MODIFY.
 *
 * This class was automatically generated by the
 * aapt tool from the resource data it found.  It
 * should not be modified by hand.
 */

package xliiv.sandbox.library;

public final class R {
    public static final class attr {
    }
    public static final class drawable {
        public static final int ic_launcher=0x7f020000;
    }
    public static final class id {
        public static final int tv=0x7f050000;
    }
    public static final class layout {
        public static final int main=0x7f030000;
    }
    public static final class string {
        public static final int app_name=0x7f040001;
        public static final int hello=0x7f040000;
    }
}

所以... xliiv.sandbox.library.R（来自“项目库”）肯定包含 xliiv.sandbox.library.R.id ...，但我的“主应用程序”中的 xliiv.sandbox.library.R 没有吨

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