Android編碼實現軟體介面

[java]  package cn.itcast.code;    import android.app.Activity;  import android.os.Bundle;  import android.view.ViewGroup;  import android.widget.LinearLayout;  import android.widget.TextView;    public class MainActivity extends Activity {      /** Called when the activity is first created. */      @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          LinearLayout linearLayout = new LinearLayout(this);          LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(                  ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT);          TextView textView = new TextView(this);          textView.setText(R.string.hello);          textView.setId(34);          LinearLayout.LayoutParams textParams = new LinearLayout.LayoutParams(                  ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);          linearLayout.addView(textView, textParams);                    setContentView(linearLayout, layoutParams);               }  }