今天就跟大家聊聊有關(guān)Android中怎么實(shí)現(xiàn)底圖局部加載移動(dòng),可能很多人都不太了解,為了讓大家更加了解,小編給大家總結(jié)了以下內(nèi)容,希望大家根據(jù)這篇文章可以有所收獲。
站在用戶的角度思考問題,與客戶深入溝通,找到雁山網(wǎng)站設(shè)計(jì)與雁山網(wǎng)站推廣的解決方案,憑借多年的經(jīng)驗(yàn),讓設(shè)計(jì)與互聯(lián)網(wǎng)技術(shù)結(jié)合,創(chuàng)造個(gè)性化、用戶體驗(yàn)好的作品,建站類型包括:網(wǎng)站設(shè)計(jì)制作、成都網(wǎng)站建設(shè)、企業(yè)官網(wǎng)、英文網(wǎng)站、手機(jī)端網(wǎng)站、網(wǎng)站推廣、域名與空間、網(wǎng)頁空間、企業(yè)郵箱。業(yè)務(wù)覆蓋雁山地區(qū)。具體如下:
public class MapMgr { public static MapMgr mapMgr = null; private int map_num = 28; private int b_x = 0; private int b_y = 0; private int width = 0; private int height = 0; private Bitmap bmpView = null; //create by danielinbiti,前提,你圖片確實(shí)比屏幕大,如果不比屏幕大,下面注釋行修改一下即可。 public static void init(int width,int height){ if(mapMgr==null){ mapMgr = new MapMgr(width,height); } } public static MapMgr getInstance(){ return mapMgr; } public MapMgr(int width,int height){ this.width = width; this.height = height; Bitmap bmp = PicMgr.getInstance().getBackGroundBitmap(); b_x = (bmp.getWidth()-width)/2;//保證圖片比屏幕大 b_y = (bmp.getHeight()-height)/2; bmpView = Bitmap.createBitmap(bmp, b_x, b_y, width, height); } public void logic(){ } public void mapDown(){ Bitmap bmp = PicMgr.getInstance().getBackGroundBitmap(); if(b_y+height<bmp.getHeight()){ b_y = b_y + bmp.getHeight()/map_num; if(b_y+height>bmp.getHeight()){ b_y = bmp.getHeight() - height; } } bmpView = Bitmap.createBitmap(bmp, b_x, b_y, width, height); } public void mapUp(){ Bitmap bmp = PicMgr.getInstance().getBackGroundBitmap(); if(b_y>0){ b_y = b_y - bmp.getHeight()/map_num; if(b_y<0){ b_y = 0; } } bmpView = Bitmap.createBitmap(bmp, b_x, b_y, width, height); } public void mapLeft(){ Bitmap bmp = PicMgr.getInstance().getBackGroundBitmap(); if(b_x>0){ b_x = b_x - bmp.getWidth()/map_num; if(b_x<0){ b_x = 0; } } bmpView = Bitmap.createBitmap(bmp, b_x, b_y, width, height); } public void mapRight(){ Bitmap bmp = PicMgr.getInstance().getBackGroundBitmap(); if(b_x+width<bmp.getWidth()){ b_x = b_x + bmp.getWidth()/map_num; if(b_x+width>bmp.getWidth()){ b_x = bmp.getHeight() - width; } } bmpView = Bitmap.createBitmap(bmp, b_x, b_y, width, height); } public void draw(Canvas canvas){ Paint paint = new Paint(); if(bmpView!=null){ canvas.drawBitmap(bmpView,0, 0, paint); } } }
調(diào)用
public void onKeyDownDeal(int keyCode){ if(keyCode==KeyEvent.KEYCODE_DPAD_UP){ MapMgr.getInstance().mapUp(); }else if(keyCode==KeyEvent.KEYCODE_DPAD_DOWN){ MapMgr.getInstance().mapDown(); }else if(keyCode==KeyEvent.KEYCODE_DPAD_LEFT){ MapMgr.getInstance().mapLeft(); }else if(keyCode==KeyEvent.KEYCODE_DPAD_RIGHT){ MapMgr.getInstance().mapRight(); } }
看完上述內(nèi)容,你們對(duì)Android中怎么實(shí)現(xiàn)底圖局部加載移動(dòng)有進(jìn)一步的了解嗎?如果還想了解更多知識(shí)或者相關(guān)內(nèi)容,請(qǐng)關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝大家的支持。
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