Android Activity跳转的小结

Intent i = new Intent();

i.putExtra("request_text_for_third", text+" "+"从ThirdActivity再次传递到SecondActivity");

setResult(Activity.RESULT_OK, i);

finish();

}

});

}

}

public class ThirdActivity extends Activity{

private TextView request_text;

private Button btn;

private String text;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.third);

text = getIntent().getStringExtra("request_text_for_second");

request_text = (TextView)this.findViewById(R.id.request_text);

request_text.setText(text);

btn = (Button)this.findViewById(R.id.btn);

btn.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

Intent i = new Intent();

i.putExtra("request_text_for_third", text+" "+"从ThirdActivity再次传递到SecondActivity");

setResult(Activity.RESULT_OK, i);

finish();

}

});

}

}

比起前一个demo2其实没有更复杂之处，只是从ThirdActivity跳转回SecondActivity，而通过SecondActivity的另一个Button来跳转回Main的。DEMO下载：php?file_id=206">http://code.cnmsdn.com/viewfile.php?file_id=206