add java android demo (#1454)

android/SherpaOnnxJavaDemo/sherpa/.gitignore

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+/build

android/SherpaOnnxJavaDemo/sherpa/build.gradle

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+plugins {
+    id 'com.android.library'
+}
+
+android {
+    namespace 'com.k2fsa.sherpa'
+    compileSdk 34
+
+    defaultConfig {
+        minSdk 26
+        targetSdk 27
+        versionCode 1
+        versionName "1.0"
+        missingDimensionStrategy 'base', 'feature1'
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+//    implementation "androidx.appcompat"
+//    implementation libs.material
+//    testImplementation libs.junit
+//    androidTestImplementation libs.androidx.test.ext.junit
+//    androidTestImplementation libs.espresso.core
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'com.google.android.material:material:1.9.0'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+
+}

android/SherpaOnnxJavaDemo/sherpa/proguard-rules.pro

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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

android/SherpaOnnxJavaDemo/sherpa/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:label="@string/app_name"
+        android:supportsRtl="true" />
+
+</manifest>

android/SherpaOnnxJavaDemo/sherpa/src/main/java/com

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+../../../../../../../sherpa-onnx/sherpa-onnx/java-api/src/com

android/SherpaOnnxJavaDemo/sherpa/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">sherpa</string>
+</resources>