add del method for FileLess

Author: fengjian

app/src/main/java/com/jayfeng/lesscode/app/activity/ActivityActivity.java

@@ -4,11 +4,14 @@
 import android.os.Bundle;
 
 import com.jayfeng.lesscode.app.R;
+import com.jayfeng.lesscode.core.ActivityLess;
 
 public class ActivityActivity extends Activity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        ActivityLess.$noTitle(this);
+        ActivityLess.$fullScreen(this);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_activity);
     }

app/src/main/java/com/jayfeng/lesscode/app/activity/AppActivity.java

@@ -2,19 +2,44 @@
 
 import android.app.Activity;
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
 
 import com.jayfeng.lesscode.app.R;
 import com.jayfeng.lesscode.core.AppLess;
+import com.jayfeng.lesscode.core.FileLess;
+import com.jayfeng.lesscode.core.StorageLess;
 import com.jayfeng.lesscode.core.ToastLess;
+import com.jayfeng.lesscode.core.ViewLess;
+
+import java.io.File;
 
 public class AppActivity extends Activity {
 
+    private EditText deleteDirPathView;
+    private Button deleteButton;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_app);
 
         ToastLess.$(this, "current package:" + AppLess.$running(getPackageName())
                 + ", else package:" + AppLess.$running("com.marriage"));
+
+        deleteDirPathView = ViewLess.$(this, R.id.del_dir_path);
+        deleteButton = ViewLess.$(this, R.id.del_dir_btn);
+
+        deleteDirPathView.setText(StorageLess.Sdcard.$path().getPath() + "/test");
+
+        deleteButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String path = deleteDirPathView.getText().toString();
+                File dir = new File(path);
+                FileLess.$del(dir, true);
+            }
+        });
     }
 }

app/src/main/java/com/jayfeng/lesscode/app/activity/MainActivity.java

@@ -36,8 +36,6 @@ public class MainActivity extends Activity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-        ActivityLess.$noTitle(this);
-        ActivityLess.$fullScreen(this);
         super.onCreate(savedInstanceState);
 
         setContentView(R.layout.activity_main);

app/src/main/res/layout/activity_app.xml

@@ -1,12 +1,25 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
-    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
-    android:paddingRight="@dimen/activity_horizontal_margin"
-    android:paddingTop="@dimen/activity_vertical_margin"
-    android:paddingBottom="@dimen/activity_vertical_margin"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
     tools:context="com.jayfeng.lesscode.app.activity.AppActivity">
 
-    <TextView android:text="@string/hello_world" android:layout_width="wrap_content"
-        android:layout_height="wrap_content" />
+    <com.jayfeng.lesscode.core.other.SpaceDividerView
+        android:layout_width="match_parent"
+        android:layout_height="1px"
+        android:layout_marginBottom="16dp"
+        android:layout_marginTop="16dp"
+        app:spaceColor="#00ff00" />
 
-</RelativeLayout>
+    <EditText android:id="@+id/del_dir_path"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="delete directory"/>
+
+    <Button android:id="@+id/del_dir_btn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="删除"/>
+</LinearLayout>

lesscode-core/src/main/java/com/jayfeng/lesscode/core/FileLess.java

@@ -116,4 +116,30 @@ public final class FileLess {
         }
         zipInputStream.close();
     }
+
+    /**
+     * 删除文件或者文件夹，默认保留根目录
+     * @param directory
+     */
+    public static void $del(File directory) {
+        $del(directory, false);
+    }
+
+    /**
+     * 删除文件或者文件夹
+     * @param directory
+     */
+    public static void $del(File directory, boolean keepRoot) {
+        if (directory != null && directory.exists()) {
+            if (directory.isDirectory()) {
+                for (File subDirectory : directory.listFiles()) {
+                    $del(subDirectory, false);
+                }
+            }
+
+            if (!keepRoot) {
+                directory.delete();
+            }
+        }
+    }
 }