android-4.1-jelly-bean

How to check if Talkback is active in JellyBean

由 谁说胖子不能爱 提交于 2020-01-11 03:16:07
问题 This question asked how to know if Android Talkback is active; that worked until Jelly Bean. Starting from Android 4.1, that steps no longer work, because the mentioned cursor is empty. Having this said, I want to ask is if there is a way to do the same checking in Jelly Bean. EDIT I tried to search for TalkBack code and I found it here. For checking if TalkBack is active, I am using the following code: Intent screenReaderIntent = new Intent("android.accessibilityservice.AccessibilityService"

Jelly bean not calling onPrepareOptionsMenu() when opening the menu for the first time

由 柔情痞子 提交于 2019-12-23 07:38:15
问题 I'm overriding onPrepareOptionsMenu to hide and show menu items. When testing it with the API level 16 emulator; onPrepareOptionsMenu is not called when opening the menu for the first time. But when i reopen the menu it works. The problem is only with the first usage. You can simple test it with this; @Override public void onPrepareOptionsMenu(Menu menu) { Toast.makeText(this.getActivity(), "pre", Toast.LENGTH_SHORT).show(); super.onPrepareOptionsMenu(menu); } Any ideas? 回答1:

fromHtml: Different behaviour on JellyBean and KitKat (and above)

由 与世无争的帅哥 提交于 2019-12-11 06:00:43
问题 I am using fromHtml to display formatted text (bold italic etc) in TextView . However, I found it's behaviour is different on JellyBean (4.1.2) and KitKat(4.4.2) Here is code: String myHtml = "<b>hello</b>😄"; Spanned spanned = Html.fromHtml(myHtml, null, null); Here html string has 😄 which is unicode for an emoji. Now after calling fromHtml it returns following value on KitKat (and above): spanned = hello😄 Here is screenshot of Android Studio for the same: This is expected behaviour as we can

App works well in android 5.1 and 6.1 but crashes in 4.10(API 16)

由 ε祈祈猫儿з 提交于 2019-12-08 13:23:47
问题 I am a newbee in the Android development. I am able to make this app work in Android 5.1 and but however when I tried to deploy this app in Android 4.1 it used to crash in the main activity itself. I understood its becuase I used vector images and android 4.1 is not compatible with it. To overcome this I set the code as mentioned below: // Gradle Plugin 2.0+ android { defaultConfig { vectorDrawables.useSupportLibrary = true } } You’ll note this new attribute only exists in the version 2.0 of

How to check if Talkback is active in JellyBean

由 别等时光非礼了梦想. 提交于 2019-11-30 23:15:35
This question asked how to know if Android Talkback is active; that worked until Jelly Bean. Starting from Android 4.1, that steps no longer work, because the mentioned cursor is empty. Having this said, I want to ask is if there is a way to do the same checking in Jelly Bean. EDIT I tried to search for TalkBack code and I found it here . For checking if TalkBack is active, I am using the following code: Intent screenReaderIntent = new Intent("android.accessibilityservice.AccessibilityService"); screenReaderIntent.addCategory("android.accessibilityservice.category.FEEDBACK_SPOKEN"); List
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