当我点击第一个页面的一个按钮,就跳到了第二个页面,第二个页面是用户名和密码还有个确定按钮,当我在第二个页面中填完了用户名和密码的数据,按确定按钮,把第二个页面中填完了用户名和密码的数据传给第一个页面,并在第一个页面的显示框显示第二个面的那些用户名和密码的数据,我无法实现!下面是我的程序:
第一个页面的:
package com.example.logon07111030;import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;public class MainActivity extends Activity { Button button01;
TextView textView01;
protected Intent bundle;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button01=(Button) findViewById(R.id.button01);
textView01=(TextView) findViewById(R.id.textView01);
button01.setOnClickListener(new OnClickListener(){ //按钮接口监听器 public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.setClass(MainActivity.this, Second.class);
startActivityForResult(intent, 0);
startActivityforResult(intent,100); MainActivity.this.finish();
}
});
}
protected void startActivityforResult(Intent intent, int i) {
String xm=textView01.getText().toString();
textView01=(TextView) findViewById(R.id.textView1);
textView01.setText(xm);
}
}
第二个一面是: package com.example.logon07111030;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;public class Second extends Activity {
Button button1;
EditText editText1,editText2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
button1=(Button) findViewById(R.id.button1);
editText1=(EditText) findViewById(R.id.editText1);
editText2=(EditText) findViewById(R.id.editText2);
button1.setOnClickListener(new OnClickListener(){ public void onClick(View v) {
// TODO Auto-generated method stub
String zhanghu=editText1.getText().toString().intern();//获得账户
String mima=editText2.getText().toString().intern();//获得密码
Intent intent=new Intent();
intent.setClass(Second.this,MainActivity.class);
Bundle bundle=new Bundle(); //创建bundle
bundle.putString("zhanghu", zhanghu); //加入信息
bundle.putString("mima", mima);
intent.putExtras(bundle); //绑定信息
setResult(101,intent);
//startActivity(intent); //启动Activity
//Second.this.finish(); //关闭Activity
finish();
}
});
}}希望高手能给我完整的正确的程序!
第一个页面的:
package com.example.logon07111030;import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;public class MainActivity extends Activity { Button button01;
TextView textView01;
protected Intent bundle;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button01=(Button) findViewById(R.id.button01);
textView01=(TextView) findViewById(R.id.textView01);
button01.setOnClickListener(new OnClickListener(){ //按钮接口监听器 public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.setClass(MainActivity.this, Second.class);
startActivityForResult(intent, 0);
startActivityforResult(intent,100); MainActivity.this.finish();
}
});
}
protected void startActivityforResult(Intent intent, int i) {
String xm=textView01.getText().toString();
textView01=(TextView) findViewById(R.id.textView1);
textView01.setText(xm);
}
}
第二个一面是: package com.example.logon07111030;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;public class Second extends Activity {
Button button1;
EditText editText1,editText2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
button1=(Button) findViewById(R.id.button1);
editText1=(EditText) findViewById(R.id.editText1);
editText2=(EditText) findViewById(R.id.editText2);
button1.setOnClickListener(new OnClickListener(){ public void onClick(View v) {
// TODO Auto-generated method stub
String zhanghu=editText1.getText().toString().intern();//获得账户
String mima=editText2.getText().toString().intern();//获得密码
Intent intent=new Intent();
intent.setClass(Second.this,MainActivity.class);
Bundle bundle=new Bundle(); //创建bundle
bundle.putString("zhanghu", zhanghu); //加入信息
bundle.putString("mima", mima);
intent.putExtras(bundle); //绑定信息
setResult(101,intent);
//startActivity(intent); //启动Activity
//Second.this.finish(); //关闭Activity
finish();
}
});
}}希望高手能给我完整的正确的程序!
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import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;public class MainActivity extends Activity { private final static int REQUESTCODE = 1;//返回结果码 private Button button;
private EditText editTextOne;
private EditText editTextTwo;
private EditText resultEditText; @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextOne = (EditText) findViewById(R.id.one);
editTextTwo = (EditText) findViewById(R.id.two);
resultEditText = (EditText) findViewById(R.id.result); button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) {
// TODO Auto-generated method stub
int a = Integer.parseInt(editTextOne.getText().toString());
int b = Integer.parseInt(editTextTwo.getText().toString());
Intent intent = new Intent(MainActivity.this,
OtherActivity.class);
intent.putExtra("a", a);
intent.putExtra("b", b);
startActivityForResult(intent, REQUESTCODE); }
});
} @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == 2) {
if (requestCode == REQUESTCODE) {
int res = data.getIntExtra("result", 0);
resultEditText = (EditText) findViewById(R.id.result);
resultEditText.setText(String.valueOf(res));
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
第二个Activity
package com.example.android_intent4;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;public class OtherActivity extends Activity { private TextView textView;
private EditText editText;
private Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.other);
textView = (TextView) findViewById(R.id.msg);
Intent intent = getIntent();
textView.setText(intent.getIntExtra("a", 0) + " + " + intent.getIntExtra("b", 0) + " = ?");
editText = (EditText) findViewById(R.id.three);
button = (Button) findViewById(R.id.button2);
button.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
int result = Integer.parseInt(editText.getText().toString());
Intent intent = new Intent();
intent.putExtra("result", result);
setResult(2, intent);
finish();//结束当前Activity
}
});
}}
textView01=(TextView) findViewById(R.id.textView1);
textView01.setText(xm);
}很明显getText().toString();这个取的值应该是EditText的吧,你是TextView。另外怎么用
两个:
startActivityForResult(intent, 0);
startActivityforResult(intent,100);
???
我的想法是,用这段代码接收第二个Activity返回来的用户和密码的数据的!不知道对不对!我不懂,只能摸索!请指导!
并且你把startActivityforResult(Intent intent, int i){}方法给重写了.
另外注意:被开启的Activity如果是singleinstance的话,好像onActivityResult(int requestCode, int resultCode, Intent data)方法还并不会执行.