private void setDefaultFragment() {
FragmentManager fm = getFragmentManager();
FragmentTransaction transaction = fm.beginTransaction();
mFragmentOne = new FragmentOne();
mFragmentOne.setClickEnable();
transaction.replace(R.id.frameLayout_content, mFragmentOne);
transaction.commit();
}
/**
* Fragment常用的三个类
*
* <p>android.app.Fragment 主要用于定义Fragment
*
* <p>android.app.FragmentManager 主要用于在Activity中操作Fragment
*
* <p>android.app.FragmentTransaction 保证一些列Fragment操作的原子性，熟悉事务这个词，一定能明白~
*
* @param v
*/
@Override
public void onClick(View v) {
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fgtransaction = fragmentManager.beginTransaction();
switch (v.getId()) {
case R.id.btn_one:
{
if (mFragmentOne == null) {
mFragmentOne = new FragmentOne();
mFragmentOne.setClickEnable();
}
fgtransaction.replace(R.id.frameLayout_content, mFragmentOne);
break;
}
case R.id.btn_two:
{
if (mFragmentTwo == null) {
mFragmentTwo = new FragmentTwo();
mFragmentTwo.setClickEnable();
}
fgtransaction.replace(R.id.frameLayout_content, mFragmentTwo);
break;
}
// case R.id.btn_one: {
// if (mFragmentTwo!=null){
// fgtransaction.hide(mFragmentTwo);
// }
//
// if (mFragmentOne == null) {
// mFragmentOne = new FragmentOne();
// mFragmentOne.setClickEnable();
// fgtransaction.add(R.id.frameLayout_content, mFragmentOne);
// }else{
// fgtransaction.show(mFragmentOne);
// }
// break;
// }
//
// case R.id.btn_two: {
//
// if (mFragmentOne!=null){
// fgtransaction.hide(mFragmentOne);
// }
//
// if (mFragmentTwo == null) {
// mFragmentTwo = new FragmentTwo();
// mFragmentTwo.setClickEnable();
// fgtransaction.add(R.id.frameLayout_content,mFragmentTwo);
// }else{
// fgtransaction.show(mFragmentTwo);
// }
// break;
// }
default:
{
break;
}
}
fgtransaction.commit();
}