Android source code analysis: Based on - Handler, byte beating is officially added

Source code analysis Through the above simple code, we can realize the interception and monitoring of crash and ANR, but we may not know why, including we know that ANR occurs, but we need to further analyze where ANR occurs and how to solve it. The problems analyzed today are: How to intercept global crash and avoid APP exit.How to realize A ...

Posted by Magneto on Wed, 15 Dec 2021 10:36:03 +0100

Android component-based actual combat, zero foundation can also understand

defaultConfig { if (isApplicationModule1.toBoolean()){ applicationId "com.demo.myapplication.module1" } } (3) Android manifest startup portal sourceSets { main { if (isApplicationModule1.toBoolean()) { manifest.srcFile 'src/main/module/AndroidManifest.xml' ...

Posted by Notre on Wed, 15 Dec 2021 02:34:30 +0100

Android plug-in, Android Development Manual

Now we need to implement the function of starting Main3Activity in FixInstrumentation, but Main3Activity is a plug-in activity loaded in and is not registered in the program registration list. If it is started normally, an exception will be thrown. Here, we want to use Hook Instrumentation object to replace the startup object with a registered ...

Posted by cpace1983 on Wed, 15 Dec 2021 02:06:03 +0100

Android recording function can be used directly. It's a rare dry product

.putString("audio_name", mFileName) .putString("audio_path", mFilePath) .putLong("elpased", mElapsedMillis) .apply(); if (mIncrementTimerTask != null) { mIncrementTimerTask.cancel(); mIncrementTimerTask = null; } mRecorder = null; } ``` ###2, Displays the RecordAudi ...

Posted by jammesz on Wed, 15 Dec 2021 01:09:15 +0100

2021 Android factory interview (five bytes, latest open source)

6. We check the getClassLoader() method and find that the returned PathClassLoader inherits from BaseDexClassLoader 7. Then we check BaseDexClassLoader and find that it creates a pathList object of DexPathList type when it is created, and then calls pathList when it finds class Method of findClass 8. Then we check the findClass in the DexPath ...

Posted by whitepony6767 on Wed, 15 Dec 2021 00:05:13 +0100

The cooperation between Databinding and LiveData is in-depth

Handler handler; public MainViewModel() { input.setValue("test"); include_string.setValue("include_string"); handler = new Handler(); } public void onClick() { Random random = new Random(); input.setValue(random.nextInt(100) + ""); include_string.setValue(random.nextInt(100) + ""); } public void onAsyncClick() { ...

Posted by ktstowell on Tue, 14 Dec 2021 22:15:03 +0100

Getting to know Jetpack Compose: Layout

1, Layout Description of Compose layout on the official website Composable functions are the basic building blocks of Compose. Composable function is a function that emits "Unit", which is used to describe a part of the interface. This function takes some input and generates what is displayed on the screen. For more information o ...

Posted by omanush on Tue, 14 Dec 2021 22:07:09 +0100

Android transition animation, fluent development, practical explanation pdf

When starting an activity: ActivityCompat.startActivity(Intent(this@BeforeActivity,BeforeTwoActivity::class.java), ActivityOptionsCompat.makeCustomAnimation(this@BeforeActivity, android.R.anim.fade_in, android.R.anim.fade_out).toBundle()) ####When finish ing: ActivityCompat.finishAfterTransition(this) How ...

Posted by LemonInflux on Tue, 14 Dec 2021 21:11:39 +0100

Android packaged multiple versions, Android interview questions and answers

<application android:allowBackup="true" android:icon="${app_icon}" android:label="${app_name}" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN"/> ...

Posted by Infinitive on Tue, 14 Dec 2021 20:47:55 +0100

Automatic deserialization of fluent Jason, 2021 gold, silver and four sides trial season

What will you learn How to parse json objects in fluentHow to generate code using the auto generation toolHow to test your data Start json deserialization Step 1: create mock data In the actual development process, we may modify some of the previous code. When our code is complex and large enough, we need to use unit tests to ensure that th ...

Posted by monkeytooth on Tue, 14 Dec 2021 19:26:48 +0100