Android 實戰記錄 (17) - 取得螢幕大小、dp、變更Layout 高度

FrameLayout layout = (FrameLayout) findViewById(R.id.layout);
ViewGroup.LayoutParams lp =layout.getLayoutParams();

DisplayMetrics displayMetrics = new DisplayMetrics();
this.getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);

String px = displayMetrics.widthPixels + " x " + displayMetrics.heightPixels;
String dp = displayMetrics.xdpi + " x " + displayMetrics.ydpi;
String density = "densityDpi = " + displayMetrics.densityDpi + ", density=" + displayMetrics.density + ", scaledDensity = " + displayMetrics.scaledDensity;
Log.e("test", "px = " + px + ", dp = " + dp + ",density " + density);
Log.e("test", "framelayout height = " + lp.height);
Log.e("test", "framelayout width = " + lp.width);

lp.height = displayMetrics.widthPixels/3;

參考網址：

http://saminjava.blogspot.tw/2013/09/android.html

http://ikevin.tw/?cat=9