1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.documentsui; 18 19 import android.content.Context; 20 import android.graphics.Rect; 21 import android.graphics.drawable.Drawable; 22 import android.graphics.drawable.InsetDrawable; 23 import android.util.AttributeSet; 24 import android.widget.FrameLayout; 25 26 public class DirectoryView extends FrameLayout { 27 private float mPosition = 0f; 28 29 private int mWidth; 30 31 public DirectoryView(Context context) { 32 super(context); 33 } 34 35 public DirectoryView(Context context, AttributeSet attrs) { 36 super(context, attrs); 37 } 38 39 @Override 40 public void setBackground(Drawable background) { 41 final Rect rect = new Rect(); 42 background.getPadding(rect); 43 final InsetDrawable inset = new InsetDrawable(background, -rect.left, 0, -rect.right, 0); 44 super.setBackground(inset); 45 } 46 47 @Override 48 protected void onSizeChanged(int w, int h, int oldw, int oldh) { 49 super.onSizeChanged(w, h, oldw, oldh); 50 mWidth = w; 51 setPosition(mPosition); 52 } 53 54 public float getPosition() { 55 return mPosition; 56 } 57 58 public void setPosition(float position) { 59 mPosition = position; 60 setX((mWidth > 0) ? (mPosition * mWidth) : 0); 61 } 62 } 63
