Implemented File Piker Source

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+android {
+    compileSdkVersion 30
+    defaultConfig {
+        applicationId "com.braver.tool.filepicker"
+        minSdkVersion 23
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        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:appcompat:1.3.1'
+    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
+    //implementation 'androidx.core:core:1.7.0'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    implementation 'com.intuit.sdp:sdp-android:1.0.6'
+    implementation 'com.google.android.exoplayer:exoplayer:2.15.0'
+    implementation 'com.github.chrisbanes:PhotoView:2.3.0'
+    implementation project(':picker')
+}

app/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

app/src/androidTest/java/com/braver/tool/filepicker/ExampleInstrumentedTest.java

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+package com.braver.tool.filepicker;
+
+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.braver.tool.filepicker", appContext.getPackageName());
+    }
+}

app/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"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.braver.tool.filepicker">
+
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission
+        android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_app_logo"
+        android:label="@string/app_name"
+        android:requestLegacyExternalStorage="true"
+        android:roundIcon="@mipmap/ic_app_logo"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.FilePicker">
+        <activity
+            android:name=".LaunchActivity"
+            android:exported="true"
+            android:theme="@style/SplashTheme">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".PickerActivity"
+            android:exported="true" />
+        <activity android:name="com.braver.tool.picker.CameraActivity" />
+        <activity android:name=".PreviewActivity" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_paths"
+                tools:replace="android:resource" />
+        </provider>
+    </application>
+</manifest>

app/src/main/java/com/braver/tool/filepicker/AppUtils.java

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+package com.braver.tool.filepicker;import android.content.Context;import android.content.Intent;import android.net.Uri;import android.util.Log;import androidx.core.content.FileProvider;import java.io.File;import java.util.Random;public class AppUtils {    private static final boolean IS_DEBUG = false;    public static final String DOC_ALERT_MSG = "You have to allow permission to access this feature";    public static final String START_POINT = "Source file path is \n ***/***/";    public static String getRandomImageFileName(Context context) {        File mediaStorageDir = context.getFilesDir();        int random = new Random().nextInt(8997);        String mImageName = "Braver_Img".concat("_") + random + ".jpg";        return new File(mediaStorageDir.getPath() + "/" + mImageName).getAbsolutePath();    }    /**     * @param tag - Contains class name     * @param msg - Log message as String     *            Method used to print log in console for development     */    public static void printLogConsole(String tag, String msg) {        if (IS_DEBUG) {            Log.d("##@" + tag, msg);        }    }    /**     * This method is a string return method     * Method used get file name from local file path     */    public static String getFileNameFromPath(String filePath) {        String fileName = "";        try {            fileName = filePath.substring(filePath.lastIndexOf('/') + 1);        } catch (Exception e) {            AppUtils.printLogConsole("getFileNameFromPath", "Exception-------->" + e.getMessage());        }        return fileName;    }    public static void openDocument(Context context, String filePath) {        try {            Uri uri = FileProvider.getUriForFile(context, context.getApplicationContext().getPackageName() + ".provider", new File(filePath));            Intent intent = new Intent(Intent.ACTION_VIEW);            if (filePath.contains(".doc") || filePath.contains(".docx")) {                intent.setDataAndType(uri, "application/msword");            } else if (filePath.contains(".pdf")) {                intent.setDataAndType(uri, "application/pdf");            } else if (filePath.contains(".ppt") || filePath.contains(".pptx")) {                intent.setDataAndType(uri, "application/vnd.ms-powerpoint");            } else if (filePath.contains(".xls") || filePath.contains(".xlsx")) {                intent.setDataAndType(uri, "application/vnd.ms-excel");            } else if (filePath.contains(".zip") || filePath.contains(".rar")) {                intent.setDataAndType(uri, "application/x-wav");            } else if (filePath.contains(".rtf")) {                intent.setDataAndType(uri, "application/rtf");            } else if (filePath.contains(".wav") || filePath.contains(".mp3")) {                intent.setDataAndType(uri, "audio/x-wav");            } else if (filePath.contains(".gif")) {                intent.setDataAndType(uri, "image/gif");            } else if (filePath.contains(".jpg") || filePath.contains(".jpeg") || filePath.contains(".png")) {                intent.setDataAndType(uri, "image/jpeg");            } else if (filePath.contains(".txt")) {                intent.setDataAndType(uri, "text/plain");            } else if (filePath.contains(".3gp") || filePath.contains(".mpg") || filePath.contains(".mpeg") || filePath.contains(".mpe") || filePath.contains(".mp4") || filePath.contains(".avi")) {                intent.setDataAndType(uri, "video/*");            } else {                intent.setDataAndType(uri, "*/*");            }            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);            context.startActivity(intent);        } catch (Exception e) {            AppUtils.printLogConsole("openDocument", "Exception-------->" + e.getMessage());        }    }}

app/src/main/java/com/braver/tool/filepicker/CustomPreferencesManager.java

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+package com.braver.tool.filepicker;
+
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Build;
+
+import static com.braver.tool.filepicker.PermissionUtils.IS_PERMISSION_DIALOG_ANDROID_11;
+
+public class CustomPreferencesManager {
+    private static final String NOTIFICATION_PREFERENCES_NAME = "braver_preferences";
+    public final SharedPreferences notificationPrefManager;
+
+    /**
+     * Method used to initiate Notification User Defaults
+     *
+     * @param context - Current Activity
+     */
+    public CustomPreferencesManager(Context context) {
+        Context storageContext;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            final Context deviceContext = context.createDeviceProtectedStorageContext();
+            if (!deviceContext.moveSharedPreferencesFrom(context, NOTIFICATION_PREFERENCES_NAME)) {
+                AppUtils.printLogConsole("CustomPreferencesManager", "Failed to migrate shared preferences.");
+            }
+            storageContext = deviceContext;
+        } else {
+            storageContext = context;
+        }
+        notificationPrefManager = storageContext.getSharedPreferences(NOTIFICATION_PREFERENCES_NAME, Context.MODE_PRIVATE);
+    }
+
+    /**
+     * Method used to get UserDefault
+     */
+    public String getPermissionDialogData() {
+        String data = "";
+        if (notificationPrefManager != null) {
+            data = notificationPrefManager.getString(IS_PERMISSION_DIALOG_ANDROID_11, "");
+        }
+        return data;
+    }
+
+    /**
+     * Method used to set UserDefault
+     *
+     * @param permissionType - String data
+     */
+    public void setPermissionDialogData(String permissionType) {
+        if (notificationPrefManager != null) {
+            SharedPreferences.Editor editor = notificationPrefManager.edit();
+            editor.putString(IS_PERMISSION_DIALOG_ANDROID_11, permissionType);
+            editor.apply();
+        }
+    }
+}

app/src/main/java/com/braver/tool/filepicker/LaunchActivity.java

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+package com.braver.tool.filepicker;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+public class LaunchActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_launch);
+        new Handler().postDelayed(() -> {
+            startActivity(new Intent(LaunchActivity.this, PickerActivity.class));
+            finish();
+        }, 800);
+    }
+}