http://blog.csdn.net/sukyle/article/details/4485505
1.Activity之间传递数据
（1）利用Intent传递数据
传递数据的Activity中:
Intent intent = new Intent();
intent.putExtra("name","Jon");//在Intent中加入键值对数据。键:name,值:Jon
intent.setClass(Activity01.this,Activity02.class);
Activity01.this.startActivity(intent);
在取出数据的Activity中:
Intent intent = getIntent();//获得传过来的Intent。
String value = intent.getStringExtra("name");//根据键name取出值。
（2）利用Bundle传递数据
传递数据的Activity:
Intent intent = new Intent();
Bundle myBundle = new Bundle();
myBundle.putString("Key_Name","Tom");
intent.putExtras(myBundle);
intent.setClass(Activity01.this,Activity02.class);
Activity01.this.startActivity(intent);
取出数据的Activity:
Bundle getBundle = getIntent().getExtras();
String value = getBundle.getString("Key_Name");
（3）利用startActivityForResult传递数据
startActivityForResult可以把数据传过去，还可以把那边的数据传过来。
传递数据的Activity中:
Intent intent = new Intent();
Bundle bundle = new Bundle();
bundle.putString("data", "somedata");//把数据传过去
intent.putExtras(bundle);
intent.setClass(Activity01.this, Activity02.class);
startActivityForResult(intent, 10);//10是一个代码
重载onActivityResult方法，用来接收传过来的数据:
protected void onActivityResult(int requestCode, int resultCode,Intent intent) {
switch (resultCode) {
case RESULT_OK:
Bundle b = intent.getExtras();
String str = b.getString("Result");
setTitle("Return data:" + str);
break;
default:
break;
}
}
接收数据的Activity:
Intent intent = getIntent();
Bundle getBundle = getIntent().getExtras();
String data = getBundle.getString("data");//读取传过来的数据
et.setText(data);
EditText edittext = (EditText) findViewById(R.id.text);
Intent intent = new Intent();//实例化一个Intent用来传过去，可以在Intent里存放数据。
Bundle bundle = new Bundle();
bundle.putString("Result",edittext.getText().toString());
intent.putExtras(bundle);
Activity02.this.setResult(RESULT_OK,intent);//把Intent(数据)传过去，RESULT_OK是请求码。
finish();//结束当前的Activity。
2.http://xqjay19910131-yahoo-cn.iteye.com/blog/1280857
Activity之间传递对象,或者通过Bundle传递对象的两种方式。
1:Serializable方式
传递一个对象
2:Parcelable方式
传递一个对象、传递多个对象(ArrayList<Object>)
方式一:Serializable
传递类:
计算
安全
数据库
网络和加速
企业服务
public class CustomeClass implements Serializable{
/**
*
*/
private static final long serialVersionUID = -7060210544600464481L;
private String name;
private String id;
private int age;
private String sex;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
发送部分:
CustomeClass cc = new CustomeClass();
cc.setAge(21);
cc.setId("123456");
cc.setName("mingkg21");
cc.setSex("男");
Intent intent = new Intent(this, PersonInfo.class);
intent.putExtra("PERSON_INFO", cc);
startActivity(intent);
接收部分:
Intent intent = getIntent();
CustomeClass cc = CustomeClass)intent.getSerializableExtra("PERSON_INFO");
setTextView(R.id.id, cc.getId());
setTextView(R.id.name, cc.getName());
setTextView(R.id.sex, cc.getSex());
setTextView(R.id.age, String.valueOf(cc.getAge()));
方式二:Parcelable
传递类:
public class CustomeParcelable implements Parcelable {
private String name;
private String id;
private int age;
private String sex;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public static final Parcelable.Creator<CustomeParcelable> CREATOR = new Creator<CustomeParcelable>(){
public CustomeParcelable createFromParcel(Parcel source) {
// TODO Auto-generated method stub
CustomeParcelable cus = new CustomeParcelable();
cus.name = source.readString();
cus.id = source.readString();
cus.age = source.readInt();
cus.sex = source.readString();
return cus;
}
public CustomeParcelable[] newArray(int size) {
// TODO Auto-generated method stub
return new CustomeParcelable[size];
}
};
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
// TODO Auto-generated method stub
dest.writeString(name);
dest.writeString(id);
dest.writeInt(age);
dest.writeString(sex);
}
}
发送部分:
CustomeParcelable cc = new CustomeParcelable();
cc.setAge(21);
cc.setId("123456");
cc.setName("mingkg21");
cc.setSex("男");
Intent intent = new Intent(this, PersonInfo.class);
intent.putExtra("PERSON_INFO", cc);
startActivity(intent);
接受部分:
Intent intent = getIntent();
CustomeParcelable cc = intent.getParcelableExtra("PERSON_INFO");
setTextView(R.id.id, cc.getId());
setTextView(R.id.name, cc.getName());
setTextView(R.id.sex, cc.getSex());
setTextView(R.id.age, String.valueOf(cc.getAge()));
以上为Parcelable传递一个对象,若要实现传递多个对象,
传递部分:
Bundle bundle = new Bundle();
bundle.putParcelableArrayList("mP3TagForNetDTOs",mP3TagForNetDTOs);
msg.setData(bundle);
endDocNotice.sendMessage(msg);
接受部分:
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