1.从当前的Activity传递数据到下一个Activity:
(1)发送方(当前的Activity):
Bundle bundle = new Bundle();
bundle.putString("name", "Haoye");
bundle.putInt("id", 10); Intent intent = new Intent();
intent.setClass(MainActivity.this, SecondActivity.class);
intent.putExtras(bundle); startActivity(intent);
(2)接收方(即将跳转到的Activity):
//---在onCreate函数里添加:
Bundle bundle = this.getIntent().getExtras();
String name = bundle.getString(“name");
int id = bundle.getInt("id");
2.从当前Activity返回数据到前一个Activity:
使用startActivityForResult()函数跳转;
接收方:
在原来的Activity(即MainActivity)中重写 onActivityResult() 函数:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (resultCode) {
case RESULT_OK:
Bundle bundle = data.getExtras();
//...
break;
default:
break;
}
}
发送方:
在SecondActivity返回前调用setResult()函数:
Bundle bundle = new Bundle();
bundle.putString("name", "Haoye");
bundle.putInt("id", 10); Intent intent = new Intent();
intent.putExtras(bundle);
setResult(RESULT_OK, intent);
finish();