两个Activity通信（一）

package info.qingchun; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class SecActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.showmsg); TextView tv = (TextView)findViewById(R.id.tv); Bundle bundle = getIntent().getExtras(); tv.setText(bundle.getString("name")); } }
主ACtivity向第二个Activity传递数据

package info.qingchun; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.LinearLayout; public class ActActivity extends Activity implements OnClickListener { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btn = new Button(this.getApplicationContext()); btn.setOnClickListener(this); btn.setText("StartActivity!"); LinearLayout ll = (LinearLayout)findViewById(R.id.ll); ll.addView(btn); } @Override public void onClick(View v) { // TODO Auto-generated method stub //Toast.makeText(this.getApplicationContext(),"Test",1).show(); Intent intent = new Intent(this.getApplicationContext(),SecActivity.class); intent.putExtra("name","qingchunhuahang"); startActivity(intent); } }