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to modify it later, you will change it here .minsdkversion is used to specify the minimum compatible Android version of the project, 15 for minimum compatibility to Android 4.0 systemsThe value specified by targetsdkversion indicates that you have done sufficient testing on the target version, and the system will enable some of the latest features and features for your application. For example, the Android 6.0 system introduces runtime permissions,
detail I didn't notice. There are actually two conditions for the Android system to trigger the dynamic request permission, the device system version is above Android 6.0 and targetsdkversion>=23. So in fact, in the case of Targetsdkversion version less than 23, even if more than 6.0 of the device will not be hung, but will be listed at the time of installation of all permissions, with 6.0 or less devices.
targetSdkVersion attributes specify the minimum API level to apply and the highest level of API that you have designed and tested for your app.For example: xmlns:android="Http://schemas.android.com/apk/res/android" ... > android:minsdkversion="4" android:targetsdkversion=" the" /> ...Due to the release of the new Android system, some styles and behaviors can be changed. To allow your app to take advantage of these changes and make sure your app us
hdpi and ldpi are integers. The relationship between xhdpi and mdpi is also an integer multiple, so we only support mdpi and hdpi.5.3 support different system versions Although the Android system is updated quickly and we may want to use the new version of the API, we should continue to support the old version of Android so that our applications can be used on more devices, this section will show you how to use the new API in a lower-version system. To provide the best functions and functions a
compilation version and the compilation tool version is different Minsdkversion, Targetsdkversion, and buildtools version numbers in the App/build.gradle file need to be adjusted A) on Windows minsdkversion 14,targetsdkversion , buildtoolsversion "0.2"b) Linux on Minsdkversion, targetsdkversion, buildtoolsversion "0.2"Third, Gradle different parame
devices running each version by counting the number of devices accessing the Google Play store. In general, when updating your app to the latest Android version, it's a good idea to make sure your new app supports 90% of devices.In order to provide the best features and functionality in several Android versions, we should use the Android support Library in the app to enable your app to use the APIs of the last few platforms on the legacy platform.3.1 Specifying the minimum and target API levels
specified component; all components are disabled. The default value is "true ". Android: hasCode Whether the application contains code. If the application contains code, the value is "true". Otherwise, the value is "false ". When its value is "false", the system will not try to load any application code when running the component. The default value is "true ". If it only uses the built-in component class, the application itself will not have any code. For example, if the AliasActivity class is
Android 6.0 Marshmallow version, the system will not give the app all its application permissions when the software is installed, for some dangerous level of permissions, the app needs to be at runtime one to ask the user to grant permissions. Old version app compatibility issuesSo the question is, is there a problem with all the previously released apps? The answer is no, only those targetsdkversion set to 23 and more than 23 of the application wil
We often found this warning in Androidmanifest.xml when developing the app Warining: "Not targeting the latest versions of Android; Compatibility modes apply. Consider testing and updating this version. Consult the Android.os.Build.VERSION_CODES Javadoc for details. "Android Runtime and Dalvik will decide whether to work under "Compatibility Mode" based on target SDK version, which is to turn off the state of the new mechanisms and experience optimizations in the new version.
this problem in advance.Do you remember 6.0 runtime permissions issues? If you do not want to handle runtime permissions, simply set the value of Targetsdkversion to 23 in the Build.gradle file.Similarly, as long as the targetsdkversion value is less than the 24,file URI, it can still appear on devices of version 7.0 and above. However, it is important to note that, as mentioned earlier, the call system cl
Marshmallow Version Permissions ModificationThe Android privilege system has always been the primary security concept because these permissions are only asked once during installation. Once installed, the app can access everything in the right without the user's knowledge, and the average user rarely has to look at the list of permissions when it's installed, not to get a deeper understanding of the risks associated with these permissions. However, after the Android 6.0 Marshmallow version, the
, do permission control and parameter checking on the component.?Intent Schemeurls attackRisk details: After Androidmanifast.xml set the scheme protocol, the corresponding activity can be opened via the browser.Hazard situation: The attacker constructs the intent syntax by accessing the browser to evoke the appropriate components of the app, causing a denial-of-service, or perhaps evolving an ultra-vires call to the app or even upgrading to a power-up vulnerability.Fix suggestion: The app checks
: Matrix Center centerinside centercrop fitcenter (default) fitstart fitend Fitxy Some articles say the default is matrix, is not correct, in fact, the default is Fit_center The default settings can be seen through the ImageView source code. private void Initimageview () { Mmatrix = new Matrix (); Mscaletype = Scaletype.fit_center; if (!scompatdone) { final int targetsdkversion = Mcontext.getapplicationinfo ().
. The default value is "1". The android: maxSdkVersion attribute describes the highest Android version required for normal operation of the application, if this attribute is not declared, the system assumes that the default value is infinitely large. The android: targetSdkVersion attribute describes the best Android version information for the normal operation of the application, and declares the android: targetSd
() registers a GCM service. It starts a service named com. google. android. c2dm. intent. REGISTER with the action name. Note that this is the real GCM service, and the one we created earlier is not actually a GCM service, but a service callback provided by the entire GCM service mechanism. Complete AndroidManifest. xml file: [Html] view plaincopyprint? Xmlns: android = "http://schemas.android.com/apk/res/android"Package = "com. ives. androidgcmclient"Android: versionCode = "1"Android: versionN
: layout_height = "match_parent">Android: layout_width = "wrap_content"Android: layout_height = "wrap_content"Android: text = "Hello everyone"Android: layout_centerInParent = "true"/> Xmlns: android = "http://schemas.android.com/apk/res/android"Xmlns: tools = "http://schemas.android.com/tools"Android: layout_width = "match_parent"Android: layout_height = "match_parent"> Android: layout_width = "wrap_content"Android: layout_height = "wrap_content"Android: text = "Hello everyone"Android: layout_ce
) { super.onpagefinished (view, URL); Execute the JS function you want to invoke here } }); uncaught Typeerror:object [Object Object] has no methodSecurity Restriction issuesIf there is a problem with a machine with more than 4.2 versions, then the system is in a security limit. Android documentation so to speak Caution:if you ' ve set your targetsdkversion to + or higher, you must add the @JavascriptInterface annotation to any m
contains some basic information about the module, such as belong to the application or library, the specified Android basic editing information, Configuration build information, JDK variant version, signature information, channel pack, etc., briefly described as follows: compilesdkversion (int), compiled using the Android SDK version, corresponding to the usual we know the API version. Buildtoolsversion (String), edit the specific version code number, you can go to the SDK Manager to find the d
Gradle Android projectFirst, you want to install Gradle 1.6 and, in the environment variables of the system, all the commands are the default you already have the gradle environment. Also, Android SDK 22 has already been upgradedThere are two ways to build yours with Gradle: (Build.gradle put in the project directory ) Use ADT 22 to export Build.gradle. Copy the Build.gradle file that someone else has written. According to Gradle rules, handwritten Android build.gradle files.
One:When you project a reference to Android's support package, you will often write: Dependencies { 'com.android.support:recyclerview-v7:22.2.1'}Pay attention to the number, indicating that you quote the corresponding version of your targetsdkversion support package, if one writes, it does not matter, if more, and need to switch targetsdkversion when a little trouble, you can write:ext { supportlibve
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