Android中Intent结合Bundle传递数据

基本思路：首先把需要传递的数据保存在Bundle对象中，然后再将Bundle对象存放在Intent里。到了目标活动后先从Intent 中取出Bundle，再从Bundle中一一取出数据。

public class MainActivity extends Activity {
private Button btn=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
btn=(Button)findViewById(R.id.btn);
btn.setOnClickListener(new myBtnListener());
btn.setText("走你");
}

class myBtnListener implements OnClickListener{
//Intent结合Bundle 一起用于传递数据
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.setClass(MainActivity.this, Second.class);
Bundle bundle=new Bundle();
bundle.putString("testBundle","123456");
intent.putExtras(bundle);
MainActivity.this.startActivity(intent);

}

}

public class Second extends Activity {
private TextView myTxtView=null;
private Button sbtn=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
Intent intent=getIntent();
Bundle bundle=intent.getExtras();
String data=bundle.getString("testBundle");
myTxtView=(TextView)findViewById(R.id.second);
myTxtView.setText(data);
Toast.makeText(Second.this, data, Toast.LENGTH_SHORT).show();
}