Android传递数据

1、Intent传递数据，假设有两个activity，AActivity和BActivity

AActivity中发送数据部分代码：

 Button btn=(Button)findViewById(R.id.button1);
      btn.setOnClickListener(new OnClickListener() {
		
		@Override
		public void onClick(View arg0) {
			// TODO Auto-generated method stub
			EditText name = (EditText)findViewById(R.id.edittext1);
			EditText sno = (EditText)findViewById(R.id.edittext2);
			Intent intent = new Intent(AActivity.this,BActivity.class);
			intent.putExtra("name", name.getText().toString());
			intent.putExtra("sno", sno.getText().toString());
			AActivity.this.startActivity(intent);
		}
	});

BActivity中接收数据部分代码

Intent intent = getIntent();
        String name = intent.getStringExtra("name");
        String sno = intent.getStringExtra("sno");

2、Bundle传递数据

Bundle可以传递对象，前提是这个对象需要序列化。

person类代码：

public class Person implements Serializable{
	private String name = null;
	private String sno = null;
	public String getName() {
		return name;
	}
	public String getSno() {
		return sno;
	}
	public Person(String name,String sno){
		this.name = name;
		this.sno = sno;
	}
	
}

AActivity发送数据部分代码如下：

btn.setOnClickListener(new OnClickListener(){
        	public void onCLick(view v){
        		EditText name = (EditText)findViewById(R.id.edittext1);
        		EditText sno = (EditText)findViewById(R.id.edittext2);
        		Intent intent = new Intent(AActivity.this,BActivity.class);
        		Bundle mExtra = new Bundle();
        		String name1 = name.getText().toString();
        		String sno1 = sno.getText().toString();
        		Person person = new Person(name1, sno1);
        		mExtra.putSerializable("person", person);
        		intent.putExtras(mExtra);
        		AActivity.this.startActivity(intent);
        	}
        });

BActivity中接收数据代码如下：

Intent intent = getIntent();
        Person person = (Person) intent.getSerializableExtra("person");
        String name = person.getName();
        String sno = person.getSno();