Android編碼實現軟件界面

[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);                 }   }