安卓关于用fragement实现导航栏，假设已经写好了三个fragement的xml文件，底部有三

相关代码：
/**
* 初始化fragment
*/
private void setFragmentIndicator(int whichIsDefault) {
mFragments = new Fragment[3];
mFragments[0] = getSupportFragmentManager().findFragmentById(R.id.fragment_home);
mFragments[1] = getSupportFragmentManager().findFragmentById(R.id.fragment_search);
mFragments[2] = getSupportFragmentManager().findFragmentById(R.id.fragment_settings);
getSupportFragmentManager().beginTransaction().hide(mFragments[0])
.hide(mFragments[1]).hide(mFragments[2]).show(mFragments[whichIsDefault]).commit();

FragmentIndicator mIndicator = (FragmentIndicator) findViewById(R.id.indicator);
FragmentIndicator.setIndicator(whichIsDefault);
mIndicator.setOnIndicateListener(new OnIndicateListener() {
@Override
public void onIndicate(View v, int which) {
getSupportFragmentManager().beginTransaction()
.hide(mFragments[0]).hide(mFragments[1])
.hide(mFragments[2]).show(mFragments[which]).commit();
}
});
}

网址：http://blog.csdn.net/loongggdroid/article/details/9366413