屏幕适配

求手机屏幕的高和宽()： http://blog.youkuaiyun.com/luckily01/article/details/7713973

//定义DisplayMetrics对象

DisplayMetrics dm=new DisplayMetrics();

//取得窗口属性

getWindowManager().getDefaultDisplay().getMetrics(dm);

//窗口的宽度

int widthPixels = dm.widthPixels;

//窗口的高度

int heightPixels = dm.heightPixels;

float density = dm.density;

int densityDpi = dm.densityDpi;

te = (TextView) findViewById(R.id.te);

te.setText("屏幕宽度"+widthPixels+" 屏幕高度"+heightPixels+"屏幕密度"+densityDpi);

button = (Button) findViewById(R.id.button);

button.setHeight(heightPixels/3);

button.setWidth(widthPixels/3);