Android经典设计源码-Intent_ComponentSample.rar

package tjuci.edu.dl; import android.app.Activity; import android.content.ComponentName; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; public class First extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.d("第一个Activity", "我是FirstActivity"); setContentView(R.layout.main); Button btn = (Button)findViewById(R.id.btn); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent intent = new Intent(); ComponentName com = new ComponentName(First.this, Second.class); intent.setComponent(com); startActivity(intent); //上述代码可写为 //Intent intent = new Intent(First.this, Second.class); //startActivity(intent); } }); } }