Programmer Think

TextToSpeech is the text to speech service, which is a native interface service provided by Android system. The native tts engine application can download the resource file of the corresponding language through detecting the system language, so as to achieve the ability of broadcasting the text of the s ...

Preface To be a great Android developer, you need a complete Knowledge System Here, let's grow up as we want. 1. Understanding the composition of Activity An Activity contains a Window object, which is implemented by PhoneWindow.PhoneWindow uses DecorView as the root View of the entire application window, and this DecorView divides the screen i ...

Recent learning plug-in, see all kinds of brain pain, now write some notes with your own hands for future review, there are incorrect understanding, please point out Loading classes is accomplished through the class loader ClassLoader, which has several classloaders, as follows pathClassLoader can be understood as loading activities written ...

background When I was working on the project yesterday, I met a small problem. It's about switch button. That's it We have seen it in many places. The most typical is the notification management of our mobile phone. We often receive notifications from various apps. It's annoying, isn't it? There's a "allow notifications" button, just ...

1. reasons In some low-end mobile chips, it will be found that when the power on wizard is turned on, it is easy to have various situations of gms application of anr, which is caused by high cpu. However, for chips with poor performance, it is easy to cause anr, so the solution 1 is to skip skip anr. 2. Judgment time Search ...

Title Link Main idea: The following operations are given in the title: 1. Merge the two sets of p and q; 2. Move p into the set q; 3. Output the number of elements in the set of p and the sum of these elements. Topic idea: We know that the combination of two sets is to connect the root node of P to the root node of Q, and t ...

Learning purpose: to use the framework of scratch to obtain dynamic website information. Take Taobao as an example, to obtain the [description, price, store, picture link] of goods and save the obtained information to execl table, or json file, database. Open Taobao homepage to search Yijia mobile phone, and get the url of t ...

Bluetooth connection of mobile phone uses Jiabo printer (ZH380) Bluetooth privileges <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <uses-permission android:name="android.permission.BLUETOOTH" /> android 6.0 and above also need to add location permission <uses-permission android:nam ...

Preface Now we can see that more and more developers are using RX related technologies to develop apps, Java backend and other fields. In open source communities and Internet companies, Rx, responsive programming, and functional are popular. Therefore, the author will write a series of articles on Rxjava2 in combination with his own learning an ...

1, Brief introduction to RAM and ROM RAM refers to running memory. For example, the floating window of 360 mobile assistant often prompts that the running memory is more than 80%. It refers to running memory. The general size is a few G. ROM is the memory for storing data. For example, the "total space 31.6G, the remaini ...