Today I found that I didn't even know the bundle, so I took the time to study it.According to Google's official documentation (HTTP://DEVELOPER.ANDROID.COM/REFERENCE/ANDROID/OS/BUNDLE.HTML)The bundle class is a key-value pair, "a mapping from String values to various parcelable types."Class inheritance Relationships:Java.lang.ObjectAndroid.os.BundleThe
Today I found that I didn't even know the bundle, so I took the time to study it.According to Google's official documentation (HTTP://DEVELOPER.ANDROID.COM/REFERENCE/ANDROID/OS/BUNDLE.HTML)The bundle class is a key-value pair, "a mapping from String values to various parcelable types."Class inheritance Relationships:Java.lang.ObjectAndroid.os.BundleThe
According to Google's official documentation (HTTP://DEVELOPER.ANDROID.COM/REFERENCE/ANDROID/OS/BUNDLE.HTML)The bundle class is a key-value pair, "a mapping from String values to various parcelable types."Class inheritance Relationships:Java.lang.ObjectAndroid.os.BundleThe bundle class is a final class:Public final classBundleExtends Objectimplements parcelable c
Welcome to Android Studio (Meet Android Studio) 1, prefaceAndroid Studio is an Android application development environment based on IntelliJ idea under the official whole. Based on IntelliJ's powerful code editor and development t
Unable to load script from assets 'index. android. bundle' solution in react native,
A friend just asked me to create a project and reported the following error: Unable to load script from assets 'index. android. bundle '. This problem has not occurred before, so I found a solution and shared it.The solution to this p
In Android development, we often need to pass data between two activity, the most common is used intent.putXXX() , but many times we will do so:Bundle bundle = new Bundle();bundle.putXXX()...These two kinds of values are similar, look at the intent.putXXX() method source code today, and find this: /** * ADD Extended data to the intent. The name must include a
In Android development, you sometimes need to pass objects between applications or between processes, and here's a detailed description of how intent uses bundle to pass objects.
The object being passed needs to be serialized first, and there are two ways to serialize the object: Java.io.Serializable and Android.os.Parcelable
Serializable is used in Java, and Google uses a custom parcelable on
1. Using BundlesThe activity, service, and receiver in Android support the delivery of bundle data in Intent, and the bundle implements the Parcelable interface, which can be conveniently transferred between different processes. When we start the Activity, Service, and Receiver of another process in one process, we can attach to the
Even if you find yourself today the bundle class is unclear. So take the time to look into it.According to Google's Official document (http://developer.android.com/reference/android/os/Bundle.html)The bundle class is a key-value pair, "a mapping from String values to various parcelable types."Class inheritance Relationships:Java.lang.ObjectAndroid.os.BundleThe
intent, which is more convenient to use, the code is more concise.new Intent(); intent.putExtra("name","XXX");//不是putExtrasAfter passing the data, now look at how to take intent and bundles out:① Direct use of this.getintent () will be able to get the intent,② then calls Getextras () on the basis of this intent to get bundles.③ can get data from bundles, depending on the data type. such as String str=bundle.getstring ("name"), get the string with the key "name", int num=bundle.getint ("code"),
My computer used to be eclipse3.7 to develop Android projects, and the creation of Android projects would normally generate files such as Mainactivity.java and Activity_main.xml. Later do not know what the reason, the computer several disk files on a lot of open are garbled. Find a lot of methods can not be solved, so the hard drive to the format of the system re-installed.After reinstalling the system, rec
Today I found that I didn't even know the bundle, so I took the time to study it.According to Google's official documentation (HTTP://DEVELOPER.ANDROID.COM/REFERENCE/ANDROID/OS/BUNDLE.HTML)The bundle class is a key-value pair, "a mapping from String values to various parcelable types."Class inheritance Relationships:Java.lang.ObjectAndroid.os.BundleThe
1. Build an Android Development Environment
To learn more about Android development, we will start to build an Android development environment in Windows.
I have found some relevant blog posts for reference. Basically, we need to download and install JDK, Eclipse, AndroidSDK, and ADT respectively.
Later, we found the official
calling the Looper loop () method, it enters an infinite loop, and then whenever a message is found in MessageQueue, it is taken out and passed to Handler in the Handlemessage () method. There will only be one Looper object in each thread.After understanding the basic concepts of message, Handler, MessageQueue, and Looper, let's comb through the entire process of asynchronous message processing. You first need to create a Handler object in the main thread and override the Handlemessage () metho
Android Bundle transfers ArrayList
Eg. Pass the ArrayList
1. Define an object as Parcelable
Public class Group implements Parcelable {}
In:
Bundle B = new Bundle (); B. putParcelableArrayList ("list", groups );
Out:
ArrayList
2. Define the object as the Serializable type
Public class Group imp
AOSP on MAKO (swipe Android 4.4 source bundle on Nexus 4-download/configure/compile/Brush)Special thanks to Google official documents and AOSP Open sourceReference Links:https://source.android.com/source/building-devices.html (official source brush device)Https://developers.google.com/android/nexus/drivers#makokrt16s (Hardware driver package, such as just run the
This article outlines the process for installing Android Studio under 32-bit Windows 7. Since the wall has been installed, installing development tools has been a bit of a hassle. Fortunately there are many offline packages for tossing. Thank you very much! Thanks for the internet!Description: Android Studio is an
Android development by default, the bundle bundle=new bundle (); The pass-through value cannot be passed directly to the map object, but the workaround:The first step: encapsulate your own map to enable serialization?
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/*** 序列化map供Bundle
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