添加App启动优化代码

Author: fmtcias

.idea/codeStyles/Project.xml

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+/build

.idea/misc.xml

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+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.2"
+
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles 'consumer-rules.pro'
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}

.idea/vcs.xml

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

LaunchStarter/.gitignore

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+package com.fmt.launch.starter;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+
+        assertEquals("com.fmt.launch.starter.test", appContext.getPackageName());
+    }
+}

LaunchStarter/build.gradle

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.fmt.launch.starter" >
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+</manifest>

LaunchStarter/consumer-rules.pro

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+package com.fmt.launch.starter;
+
+import android.os.Looper;
+import android.os.MessageQueue;
+import com.fmt.launch.starter.task.DispatchRunnable;
+import com.fmt.launch.starter.task.Task;
+import java.util.LinkedList;
+import java.util.Queue;
+
+/**
+ * 延迟初始化：使用MessageQueue中的IdleHandler在(系统空闲的时候)进行延迟初始化
+ */
+public class DelayInitDispatcher {
+
+    private Queue<Task> mDelayTasks = new LinkedList<>();//队列保存延迟初始化任务
+
+    //核心点IdleHandler
+    private MessageQueue.IdleHandler mIdleHandler = new MessageQueue.IdleHandler() {
+        @Override
+        public boolean queueIdle() {
+            //空闲时，每次只执行一次任务
+            if(mDelayTasks.size()>0){
+                Task task = mDelayTasks.poll();
+                new DispatchRunnable(task).run();
+            }
+            return !mDelayTasks.isEmpty();
+        }
+    };
+
+    //添加延迟初始化任务
+    public DelayInitDispatcher addTask(Task task){
+        mDelayTasks.add(task);
+        return this;
+    }
+
+    //开启延迟初始化
+    public void start(){
+        Looper.myQueue().addIdleHandler(mIdleHandler);
+    }
+
+}