Activity之间的相互调用

Activity1

//在按键按下后，调用第二个实体，第二个实体处理完数据后再传给第一个实体
btn3.setOnClickListener(new Button.OnClickListener() {
	public void onClick(View v) {
		final int RG_REQUEST = 0;
		Intent intent = new Intent();
		    //作为接受数据端
		intent.setClass(Activity1.this, Activity2.class);
		startActivityForResult(intent, RG_REQUEST);
		       ///////////////////// 
		}
	});
}
//处理接收的数据
protected void onActivityResult(int requestCode,int resultCode,Intent data)
{

	super.onActivityResult(requestCode, resultCode, data)

	if(resultCode==RESULT_OK)
	{
		//接收数据
		Bundle bundle =data.getExtras();
		double aplpa=bundle.getDouble("aplpa");
		String mode=bundle.getString("mode");
		String time=bundle.getString("time");
	}
}

 

Activity2

// //////////////////
// 点击按键后，确认返回处理
// ////////////
btn1.setOnClickListener(new Button.OnClickListener() {
public void onClick(View arg0) {
	// TODO Auto-generated method stub
	Bundle bundle = new Bundle();
	bundle.putInt("time", time);
	bundle.putInt("alpha", aplpa);
	bundle.putInt("mode", mode);
	Intent intent = new Intent(Activity2.this,Activity1.class);
	intent.putExtras(bundle);
	setResult(RESULT_OK, intent);
	Activity.this.finish();
}
});