activity銷燬時返回資料：

1.activity銷燬時返回資料。

ListView lv = (ListView)findViewById(R.id.lv);
lv.setAdapter(new ArrayAdapter<String>(this,R.layout.item_listview,R.id.tv,objects));

    //設定條目點選事件
    lv.setOnItemClickListener(new OnItemClickListener()){
    @Override
    public void onItemClick(AdapterView<?> parent,View view,int position,long id){
    //把資料返回至上一級activity
    //建立一個intent，用於攜帶資料
    Intent data = new Intent();
    date.putExtra("name",objects[position]);
    //當前activity銷燬時，data會傳遞給上一級activity
    setResult(0,data);
    //銷燬當前activity
    finish();
    }
}
 

2.接受資料

public void click(View v){
        Intent intent = new Intent(this,ContactActivity.class);
        startActivityForResult(intent,0);
    }
    //如果某個activity銷燬時傳遞資料至此activity，那麼這個方法就會呼叫
@Override
protected void onActivityResult(int requestCode,int resultCode,Intent data){
        super.onActivityResult(requestCode,resultCode,data);
        String name = data.getStringExtra("name");
        EditText et_address = (EditText)findViewById(R.id.et_address);
        et_address.setText(name);
 

}