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我输入的文本这是我的输入编辑文本类如何显示来自其他类
package com.example.websocketclient;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
EditText name;
Button enter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
enter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
name = (EditText) findViewById(R.id.editTextdname);
String dname = name.getText().toString();
sendname(dname);
}
});
}
public void sendname(String dname) {
Intent i = new Intent(this,Chatroom.class);
Bundle bundle = new Bundle();
bundle.putString("myname", dname);
i.putExtras(bundle);
startActivity(i);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
这是我显示的EditText TextView的,以一流的
package com.example.websocketclient;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;
public class Chatroom extends Activity {
TextView uname;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_chatroom);
uname = (TextView) findViewById(R.id.textViewmynam);
//kuha
Bundle bundle = getIntent().getExtras();
String urname = bundle.getString("myname");
uname.setText(urname);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.chatroom, menu);
return true;
}
}
当我运行它..它说不幸的是,那么它会关闭.. 我想从 - > EditText传递数据到我的其他类到我的显示类 - > TextView。
你只是忘了在'onCreate()'方法中'初始化'''输入''Button'。 – Piyush 2014-10-17 05:42:47