android-2.2-froyo | 易学教程

UiModeManager - NightMode (Froyo)

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I have been trying to turn off the backlight of the buttons in my application using the UiModeManager's nightmode function. The default Desk Clock application (Nexus One) turns off the backlight when it is dimmed, and I want to do this as well. I've tried using the following code: UiModeManager mgr = (UiModeManager) getSystemService(UI_MODE_SERVICE); mgr.setNightMode(UiModeManager.MODE_NIGHT_YES); The UiModeManager.setNightMode(int mode) documentation says this: Sets the night mode. Changes to the night mode are only effective when the car or desk mode is enabled on a device. Does that mean

Adding ActionBar to Android API Level 8 App?

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问题 I know there is a lot of fragmented material on how to do do this all over the internet but I am requesting someone to please give me a step by step guide on how to go from the very beginning, adding the library to adding the code into my Android application / project. I like the look of this one: https://github.com/johannilsson/android-actionbar but I cannot get it to work properly :/ I have a feeling I'm missing something. My Application is for Android version 2.2. 回答1: I wrote

Android -> how to animate to the new position

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问题 Here is simple xml android animation: <translate xmlns:android="http://schemas.android.com/apk/res/android" android:fromXDelta="0" android:fromYDelta="0" android:toXDelta="-110" android:toYDelta="-110" android:duration="1000" android:fillAfter="true" /> I want to move animated object from the center of the screen to 0, 0 positions. How cat I make it (it should work at all screen resolutions) My Answer: Thank you guys for your help. But I have fix my problem by other way, dynamically, without

How do I download a file via default Android Downloader?

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问题 How can I download files using Android downloader? (The downloader that WebBrowser is using that too). I tried something like this : Intent i = new Intent(Intent.ACTION_VIEW , Uri.parse("MyUrl")); startActivity(i); Any better way? Edit I am using Android 2.2 回答1: You need to use HttpUrlConnection to do this on Android 2.2 and below. There is a very detailed tutorial on the internet that shows you how to do this (with a progress dialog box too). Remember you must use an AsyncTask or a Thread

Streaming with Android MediaPlayer in SDK 8

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问题 SDK level 8 (Froyo) has introduced the native capability for the MediaPlayer to connect to a streaming source, like Shoutcast. Previous SDK versions were able to do workarounds, such as run a local proxy on the device (see NPR). I took the same approach as NPR and am using a StreamProxy. However, NPR first checks if the currently running SDK is less than 8. If so, it uses the proxy. Otherwise, it connects directly. My StreamProxy requests metadata from the Shoutcast server, so it does not

DropBoxManager use cases?

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问题 I noticed that a DropBoxManager has been introduced in Android API since FroYo (API 8). It looks like an alternative logger capable of logging not only text but also files or byte arrays, but I could not find any detailed doc anywhere about how and when we should use it. The latest android dev blog post introducing StrictMode talks about it, StrictMode can append data to the DropBox, and we are given a shell command to retrieve these data. Please share here your knowledge about this! Why has

Switch from AOSP master to froyo

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I just checked out master with repo. Now I want to switch to froyo. How can I do this without downloading a bunch of stuff again? I don't want to download a bunch of stuff again, I just want to be able to move freely between branches as in a normal git clone. Since you downloaded everything with repo, you can easily use repo to switch between branches without downloading everything again: repo init -b froyo; repo sync This will download only the files you need to switch branches, just like moving between branches with git. keyboardsurfer provides the commands to checkout the the froyo branch

How to “download” Android Studio IDE without the SDK?

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I already have Android SDK latest edition and Eclipse installed. But I want to try Android Studio as well. I have seen this and this post, but those solutions change the instance of SDK Android Studio (once downloaded and installed) uses. What I want is not to download another SDK when I already have it installed on my machine. The problem is that the download package given here includes SDK as well. So can I download Android Studio IDE without the SDK, and then give the path to the SDK I already have during installation? Well now Google offers a "No Android SDK" version of Android Studio in

Android Intent Action “ACTION_INSERT_OR_EDIT” - should it be used for adding contacts?

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At the moment I am searching for an easy and supported way of adding contacts in Android up from SDK level 7. (when some kind of data like the phone number is available) I looked at the default contact application and found "Intent.ACTION_INSERT_OR_EDIT" which is used for adding a new contact (or adding a number to a contact from the contact provider) from the dialer screen with the mime type "vnd.android.cursor.item/person". Now it would be nice to know how to find some documentation about the extras that should be added when using that action and if it is the correct way trying to support as

Adding ActionBar to Android API Level 8 App?

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I know there is a lot of fragmented material on how to do do this all over the internet but I am requesting someone to please give me a step by step guide on how to go from the very beginning, adding the library to adding the code into my Android application / project. I like the look of this one: https://github.com/johannilsson/android-actionbar but I cannot get it to work properly :/ I have a feeling I'm missing something. My Application is for Android version 2.2. I wrote ActionBarSherlock which is an extension of the compatibility library designed to provide a single action bar API which