setResult调用相同的活动，而不是调用父活动

Question

我从FirstActivity调用意图到SecondActivity.I用requestCode和Intent调用startActivityForResult，但在SecondActivity中setResult调用SecondActivity而不是调用FistActivity。这是我的代码

FirstActivity

Intent i = new Intent(getApplicationContext(), SecondActivity.class);       
startActivityForResult(i,1); 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
super.onActivityResult(requestCode, resultCode, data); 
Toast.makeText(getApplicationContext(),"result"+data.getStringExtra("data"),Toast.LENGTH_SHORT).show(); 
} 

SecondActivity

Intent i=getIntent(); 
i.putExtra("data","hi"); 
setResult(1,i); 
finish(); 

清单

<activity 
android:name=".FirstActivity" 
android:windowSoftInputMode="adjustPan|stateAlwaysHidden" 
android:theme="@style/MyMaterialTheme" 

android:screenOrientation="portrait"> 
<intent-filter> 
    <data android:scheme="example"/> 
    <action android:name="android.intent.action.VIEW"/> 
    <category android:name="android.intent.category.DEFAULT"/> 
    <category android:name="android.intent.category.BROWSABLE"/> 
</intent-filter> 
</activity> 
<activity 
    android:name=".SecondActivity" 
    android:theme="@style/MyMaterialTheme" 
    android:windowSoftInputMode="adjustPan|stateAlwaysHidden" 
    android:screenOrientation="portrait"> 
</activity> 

Answer 1

变化来自：

Intent i=getIntent(); 

到：

Intent i=new Intent();// change this line 

Answer 2

通

setResult(Activity.RESULT_OK, i); 

代替

setResult(1,i); 

Answer 3

你必须有意向的新对象，最后完成当前活动来实现它。

Intent resultIntent = new Intent(); 
resultIntent.putExtra("data","hi"); 
setResult(Activity.RESULT_OK, resultIntent); 
finish(); 

希望这有助于！