android-4.4-kitkat

问题 I'm working on a project which includes a Bluegiga BLE113 module and an Android app. On the Bluegiga module I've set up several characteristics. For one characteristic I defined a descriptor to activate the client notification (in My case, the client is the Android app.). The characteristic definition of the BLE113 module looks like this: : <characteristic uuid="dcfa2671-974d-4e4a-96cd-6221afeabb62" id="ez1_flow_data_out"> <!-- org.bluetooth.descriptor.gatt.characteristic_user_description -->

问题 I am trying to make all buttons in my app have default color using colorButtonNormal in my style. It works nice on API 21 and above but under API 21 it only changes the background of some buttons and i dont know what is going wrong. styles.xml <resources xmlns:tools="http://schemas.android.com/tools"> <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <item name="android:windowContentOverlay">@null</item> <item name="android:textColorPrimary">@color/white</item> <item name=

问题 In android KitKat there are some limitations for writing to SDcard. So my question: Is it always permitted to write to Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) even in KitKat? 回答1: Is it always permitted to write to Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) even in KitKat? If your app has requested the WRITE_EXTERNAL_STORAGE permission, then yes, as getExternalStoragePublicDirectory() points to external storage, which is

问题 I read that with Android 4.4 there are new rules for saving files on sdcard by apps. I have a specific case to ask about: an app (activity) A starts another app (activity) B feeding it with a file:// url, say it's a txt file (B is a text editor); the app B opens the file and edits it. Is the called app B able to save the edited content on the same file? Or will the new rules prevent it? 来源： https://stackoverflow.com/questions/24683209/android-4-4-sdcard-access-new-rules-about-saving-a-file

问题 My app gives NoClassDefFoundError for versions of sdk 19 or below. I had in my gradle android { compileSdkVersion 23 buildToolsVersion "23.0.1" defaultConfig { applicationId "com.idg.mail" minSdkVersion 14 targetSdkVersion 23 multiDexEnabled = true } Now i tried to change it to compileSdkVersion 19 buildToolsVersion "23.0.1" defaultConfig { applicationId "com.idg.gatcamail" minSdkVersion 19 targetSdkVersion 19 multiDexEnabled = true } i changed in app-> module settings - android - sdk as well

问题 I'm developing an app using Genymotion Android emulator and Apache Cordova. First of all, I've successfully installed Google Apps on both an emulated 4.2.2 and 4.4.4 devices. Whether if I try to play a video embedded in the Apache Cordova app using a regular or I open official YouTube app to play some video, I can't play videos. In the first case I get the "An error occured" error message, and when I try to play any video in the official YouTube app, it cries with a "connection lost" error.

问题 I want to write a application which can change the daydream setting. It will require to set the my own dream as selected and also make the when to play option as "Either". Is that possible to implement this feature in the sdk version 19? 回答1: If you want to set the daydream for the user, you cannot do this. You can, however, open the system settings in the right location so that the user can select from installed daydreams. You can provide a button to access Daydream Settings like so: public

问题 Can anyone tell me why this is not working on Kitkat anymore and how to solve it? private Intent player; player = new Intent(Intent.ACTION_MEDIA_BUTTON); synchronized (this) { player.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY)); sendOrderedBroadcast(player, null); player.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PLAY)); sendOrderedBroadcast(player, null); } 回答1: There is new method AudioManager

问题 After searching almost the whole Internet already I have a really big headache from this problem. I have a code that works on any APIs, in addition to API 19 KitKat (Google Nexus). It is a typical code for adding/inserting contacts to device. Anyone have any ideas why this does not work right? ArrayList<ContentProviderOperation> op_list = new ArrayList<ContentProviderOperation>(); ContentProviderOperation.Builder builder = ContentProviderOperation .newInsert(RawContacts.CONTENT_URI); builder

问题 Hello I found this exception when I run my application on Android kitkat 4.4 11-28 08:50:00.752: E/dalvikvm(10056): dlopen("/data/app-lib/com.vis.kotob-2/libdatabase_sqlcipher.so") failed: dlopen failed: cannot locate symbol "_ZN7android10MemoryBaseC1ERKNS_2spINS_11IMemoryHeapEEElj" referenced by "libdatabase_sqlcipher.so"... 11-28 08:50:00.762: E/AndroidRuntime(10056): FATAL EXCEPTION: main 11-28 08:50:00.762: E/AndroidRuntime(10056): Process: com.his.mojak, PID: 10056 11-28 08:50:00.762: E