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传值有关问题求高手解释

发布时间: 2012-09-09 09:27:54 作者: rapoo

传值问题,求高手解释
package com.example.my03activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class My03MainActivity extends Activity {
private EditText editText1 ;
private EditText editText2 ;
private TextView textView1 ;
private Button button1 ;
private String editText1_value1;
private String editText2_value2;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my03_main);
editText1 = (EditText) findViewById(R.id.editText1);
editText2 = (EditText) findViewById(R.id.editText2);
textView1 = (TextView) findViewById(R.id.textView1);
button1 = (Button)findViewById(R.id.button1);
/*editText1_value1 = editText1.getText().toString();
editText2_value2 = editText2.getText().toString();在这里赋值就不能实现传值,求高手解释哈*/
button1.setOnClickListener(new OnClickListener(){

public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent();
editText1_value1 = editText1.getText().toString();
editText2_value2 = editText2.getText().toString();
intent.putExtra("yi", editText1_value1);
intent.putExtra("er", editText2_value2);
intent.setClass(My03MainActivity.this, OtherActivity.class);
startActivity(intent);
}

});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_my03_main, menu);
return true;
}
}


[解决办法]
组件在刚初始时,无法获得组件的参数,包括组件的值,解决办法,通过延时处理

editText2_value2 = editText2.getText().toString();
替换为:

Java code
new Thread()     {        @Override          public void run()          {         synchronized(this)         {          try          {           wait(1000); //1秒          }          catch (InterruptedException e)          {           // TODO Auto-generated catch block           e.printStackTrace();          }         }editText2_value2 = editText2.getText().toString();          }     }.start(); 

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