问题描述
在我的活动的onNewIntent()方法, getIntent()的getData();
总是空。这肯定去这个方法才去的onCreate()
或任何其他生命周期的功能。它返回这里从浏览器,我不知道为什么 getIntent()的getData()
为空,但。
In my activity's onNewIntent() method, getIntent().getData();
is always null. It definitely goes to this method before going to onCreate()
or any other lifecycle function. It returns here from a browser, I don't know why getIntent().getData()
is null though.
本活动开始这样的浏览器 context.startActivity(新意图(Intent.ACTION_VIEW,Uri.parse(requestToken.getAuthenticationURL())));
this activity starts the browser like this context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(requestToken.getAuthenticationURL())));
和返回此处
@Override
public void onNewIntent(Intent intent){
super.onNewIntent(intent);
Uri uri = getIntent().getData();
if (uri != null && uri.toString().startsWith(TwitterConstants.CALLBACK_URL)) {...}
}
但URI总是空。
but uri is always null.
清单的东西:
<activity
android:name="myapp.mypackage.TweetFormActivity"
android:configChanges="orientation|keyboardHidden"
android:label="@string/app_name"
android:launchMode="singleInstance"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.Black.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="oauth" android:host="myapp"/>
</intent-filter>
</activity>
static final String CALLBACK_URL = "oauth://myapp";
我缺少什么吗?谢谢
what am I missing here? thanks
推荐答案
您应该叫的getData()
为意图
参数或获得URI之前执行 setIntent(意向)
。 onNewIntent()
不会自动设置新的意图。
You should call getData()
for the intent
argument or perform setIntent(intent)
before obtaining URI. onNewIntent()
doesn't set new intent automatically.
更新:所以,here're两块可以实现途径 onNewIntent()
。第一个替换旧意图用新的,所以当你调用 getIntent()
后,您将收到新的意图。
UPDATE: So, here're two ways that you can implement onNewIntent()
. The first replaces the old intent with the new one, so when you call getIntent()
later, you will receive the new intent.
@Override
protected void onNewIntent(final Intent intent) {
super.onNewIntent(intent);
// Here we're replacing the old intent with the new one.
setIntent(intent);
// Now we can call getIntent() and receive the new intent.
final Uri uri = getIntent().getData();
// Do something with the URI...
}
第二种方法是使用数据的新意图离开旧原样。
The second way is to use data from the new intent leave the old one as-is.
@Override
protected void onNewIntent(final Intent intent) {
super.onNewIntent(intent);
// We do not call setIntent() with the new intent,
// so we have to retrieve URI from the intent argument.
final Uri uri = intent.getData();
// Do something with the URI...
}
当然,你可以使用两个变种的组合,但不希望收到来自 getIntent()
新的意图,直到你明确地设置 setIntent()
Of course, you can use a combination of two variants, but do not expect to receive the new intent from getIntent()
until you explicitly set it with setIntent()
.
这篇关于Android的开放的onNewIntent始终为空的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!