Android学习笔记（十四）——在运行时添加碎片（附源码）

FragmentManager fragmentManager = getSupportFragmentManager();//向活动添加碎片
FragmentTransaction fragmentTransaction = fragmentManager
.beginTransaction();//添加FragmentTransaction来操作碎片
//获取设备当前的屏幕信息：判断处于纵向模式还是横向模式
WindowManager windowManager = getWindowManager();
Display display = windowManager.getDefaultDisplay();
if (display.getWidth() > display.getHeight()) {
//横向模式
Fragment1 fragment1 = new Fragment1();
fragmentTransaction.replace(android.R.id.content, fragment1);
} else {
//纵向模式
Fragment2 fragment2 = new Fragment2();
fragmentTransaction.replace(android.R.id.content, fragment2);
}
fragmentTransaction.commit();提交更改