Android

A2sd is occupying 1 GB of memory for no reason. I am using 2 GB of cards, but I still don't know where to buckle it. The available memory is less than MB, so I cannot play a movie. What's more, after several games are installed, a2sd becomes 300

1. Enter the developer option on the mobile phone, and restart the USB debugging! 2. If the devices view still prompts don't daemon running. It may be that connection tools such as pods occupy ADB. Start the pea pod, connect to the mobile phone,

Starting from Android 3.0, Google introduced a brand new fragment UI system to reinterpret reusable and extensible Android UI design concepts. The android support Library provides a complete post-fragment compatibility solution (backport) for any

According to the features of Android, we can say that the standard control layer of the Android system is activity. Why do we say this? Let's start with the lifecycle of activtiy: what is the control layer? We know that the control layer is

Detailed explanation of Android logcat commands -- Translation enabling logcat Logging Tian haili @ csdn The android log system provides the function of collecting and viewing system debugging output. Logs output by various applications and other

For code analysis on recovery, see another article AndroidRecovery Pipeline Code Analysis Make an upgrade program that supports SD card, USB flash drive, and Flash. This upgrade application must be used together with the recovery

When installing the android SDK, the error message "Java SE Development (JDK) not found" is displayed, but JDK has been installed several times !! This is a problem in 64-bit win7. the system registry key does not correctly identify the JDK

Android sleep (suspend). In a kernel that has been installed with Android patches, The state_store () function will go to another path and enter request_suspend_state (). The file is located in earlysuspend. c. These functions are added to the

In the layout file of Android, a specific unit may be specified, for example, PX, dip, or sp. Their differences are as follows: 1. PX (pixels) pixels: a large number of pixels are used. Generally, hvga represents 320x480 pixels. 2. Dip or DP (device

Blog http://blog.csdn.net/androidbluetooth/article/details/6860146 detailed paste a lot of methods to determine the network. Recently, we have encountered such a requirement: The mobile phone can monitor the network status at any time. If the

How do Android applications obtain system signature permissions? Some libraries have demanding usage conditions. Only programs with the same signature can obtain access permissions. At this time, even if the corresponding permission is

Bytes. If there is something bad, let's leave a comment. Then we will continue to improve the memory leakage problem, which will be helpful to everyone. Haha I. Overview 1 II. Android (Java) common bad code that is prone to memory leakage 1 (1)

Android handler Learning I. Sequencing, The younger brother was just familiar with Android. When learning Android, he quickly met handler, because it was too frequent in Android. So I want to see what its mechanism is. Ii. Initial understanding I

Long-winded: I found my blog was reposted, but I didn't specify the source. It felt a little painful and happy. Here we formally declare: reprinted, please indicate the source, thank you. If you have commercial purposes, please be sure to inform me.

Post: http://www.ophonesdn.com/forum/thread-4969-1-1.html. the storage contacts on Android are settled. Since the storage contact has been changed after 2.0, the storage method is different. Now we post it: (1) less than 2.0Public class

Currently, in Android, I know that there are two kinds of sawtooth situations. 1) when we use a canvas to draw a bitmap, If we select a bitmap, the bitmap will appear at the same time. 2) When you use the rotateanimation of a view for animation, if

Recently, I helped a student develop a project and recorded some knowledge points intermittently. A webview exists in a page to play SWF. If the flash plug-in is not installed in the system, you must be prompted to install it in the market. The

Android sends text messages, calls, and emails. SMS sending modes include:1. Use smsmanager to send text messages. The sent text messages are not stored in "information.2. Use contentresolver to send text messages, which are stored in "information. (

The original intention of writing this example is to imitate the address book list, which achieves some effects and cannot be 100% identical. I think there are still some shortcomings (some memory waste ). This is the first step in this phase. If

  Recently, I have been studying the FM radio source code. After a week of study, I have basically understood the call relationship of the source code and the display of the layout file. The feeling is that its layout and calling between classes are