我创建了 2 Activities
, Main 和 Second 。我想发送文本,EditText
从 Main 到 Second 活动的框中。第一个的 IDEditText
是UserName
,第二个的 ID 是Description
。
Main活动的代码是:
package com.example.test;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.support.v4.app.NavUtils;
import android.content.Intent;
import android.widget.EditText;
public class Main extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void onClick(View v) {
Intent intent = new Intent(Main.this, Second.class);
intent.putExtra("username", UserName.getText().toString());
intent.putExtra("gift", Description.getText().toString());
startActivity(intent);
}
public void ButtonOneClick(View v) {
switch (v.getId()) {
case R.id.button1:
Intent i = new Intent(this, Second.class);
startActivity(i);
break;
}
}
}
第二个Activity的完整代码是:package com.example.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.widget.TextView;
public class Second extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
TextView txtInfo = (TextView)findViewById(R.id.TextOne);
String user = "ЖЫвотное";
String gift = "дырку от бублика";
user = getIntent().getExtras().getString("username");
gift = getIntent().getExtras().getString("gift");
txtInfo.setText(user + " , вам передали " + gift);
}
}
和错误:
main.java: Description cannot be resolved
main.java: UserName cannot be resolved
对不起我的英语不好
感谢帮助
PS我在学习java和android编程才第三天,请不要向我扔石头。