1、直接使用intent攜帶資料

Intent intent = new Intent(this,SecondActivity.class);
        //直接使用intent攜帶資料
        intent.putExtra("date", "2016-11-23");
        intent.putExtra("age", 22);
        intent.putExtra("goShopping", true);

        startActivity(intent);

獲取資料

Intent intent = getIntent();
        boolean
 
 flag = intent.getBooleanExtra("goShopping", false);
        String date = intent.getStringExtra("date");
        int age = intent.getIntExtra("age", 0);

2、使用Bundle攜帶資料

Intent intent = new Intent();
        intent.setClass(this, SecondActivity.class);

        Bundle bundle=new Bundle();
        bundle.
 
putBoolean("go_out", true);
        bundle.putCharSequence("time", "11:06");

        ArrayList<String>list=new ArrayList<String>();
        list.add("A_a");
        list.add("B_b");
        list.add("C_c");
        bundle.putStringArrayList("datas", list);

        intent.putExtras(bundle);

        startActivity(intent);
 

接收資料

Intent intent = getIntent();
        Bundle bundle = intent.getExtras();
        boolean flag = bundle.getBoolean("go_out");
        String date = bundle.getString("time");
        ArrayList<String> datas = bundle.getStringArrayList("datas");

3、接收回傳資料

在MainActivity.java中

    Intent intent=new Intent(this,ContentActivity.class);
    //requestCode  設定為6，並跳轉至ContentActivity
        startActivityForResult(intent, 6);

用onActivityResult方法接收

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);

        if(requestCode==6&&resultCode==0){

            Toast.makeText(this, data.getStringExtra("name"), Toast.LENGTH_LONG).show();

        }

    }

在ContentActivity.java設定回傳資料

public class ContentActivity extends Activity {

    private ListView lv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_content);
        lv=(ListView) findViewById(R.id.lv);

        final String[]datas=new String[]{"A","B","C","D","E"};
        lv.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,datas));

        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {
                // TODO Auto-generated method stub

                Intent intent=new Intent();

                intent.putExtra("name", datas[position]);

                //resultCode=0  標記是哪個返回的資料
                //intent      攜帶資料
                setResult(0, intent);
                //關閉activity
                finish();
            }
        });     
    }
}

效果圖