Android學習第四天 螢幕解析度(圖片框的寬度)
阿新 • • 發佈:2018-12-12
獲取螢幕解析度
DisplayMetrics metric = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metric); int width =metric.widthPixels;//寬度(PX) int height =metric.heightPixels;//高度(PX) int column = 4;//每行有四個圖片框 int averageImage = width/column;//每個圖片框的畫素點數
layout=findViewById(R.id.main_gridLayout); DisplayMetrics metric = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metric); int width =metric.widthPixels;//寬度(PX) setInfoText("width: " + width); int height =metric.heightPixels;//高度(PX) setInfoText("height: " + height); float density =metric.density;//密度(0.75 / 1.0 / 1.5) setInfoText("density: " + density); int densityDpi =metric.densityDpi;//密度DPI(120 / 160 / 240) setInfoText("densityDpi: " + densityDpi); int column = 4; int averageImage = width/column; for (int i=0;i<imagePath.length;i++) { img[i]=new ImageView(MainActivity.this); img[i].setImageResource(imagePath[i]); ViewGroup.LayoutParams params=new ViewGroup.LayoutParams(averageImage,averageImage); img[i].setLayoutParams(params); layout.addView(img[i]); }