<?xml version="1.0" encoding="utf⑻"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent" >

<TextView 

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="This is Activity 1"/>

<Button

        android:id="@+id/my_button"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="跳轉(zhuǎn)"/>

</LinearLayout>

private Button btn;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        btn = (Button)findViewById(R.id.my_button);

        btn.setOnClickListener(new View.OnClickListener() {

             @Override

             public void onClick(View v) {

                 Intent intent = new Intent();

                 intent.setClass(MyActivity.this, NextActivity.class);

                 startActivity(intent);

             }

        });

    }

<activity android:name=".NextActivity" android:label="@string/app_name"/>

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

startActivityForResult(intent, 1);

@Override

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        switch(resultCode){

        case RESULT_OK:

             // 當(dāng)返回碼為RESULT_OK時(shí)進(jìn)行相干操作

        if(requestCode == 1){

                Toast.makeText(Char4Activity.this, "返回已收到", Toast.LENGTH_LONG).show();

            }

             break;

        }

}

@Override

protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.next);

    setResult(RESULT_OK);

    finish();

}

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

Bundle bundle = new Bundle();

double height = 1.74;

String name = "li lei";

bundle.putDouble("height", height);

bundle.putString("name",name);

intent.putExtras(bundle);
startActivity(intent);

Bundle bundle = NextActivity.this.getIntent().getExtras();

double height = bundle.getDouble("height");

String name = bundle.getString("name");

經(jīng)驗(yàn)分享：

需要注意的是，當(dāng)履行startActivityForResult時(shí)，requestCode值需要>=0，否則，startActivityForResult就變成了 startActivity;另外，有這樣1種情況，假定現(xiàn)在有兩個(gè)Activity:A和B。Activity A使用startActivityForResult跳轉(zhuǎn)到Activity B，跟蹤后發(fā)現(xiàn)要跳轉(zhuǎn)的Activity B并沒有被立即啟動(dòng)，而是直接履行了Activity A的onActivityResult方法，緣由是把要啟動(dòng)的Activity B的launchmode設(shè)置成singleTask了，這個(gè)時(shí)候它會(huì)先履行onActivityResult方法，然后再啟動(dòng)activity，所以就得不到我們想要的結(jié)果。