fragment的管理

    private void initData() {
        fragmentManager = getSupportFragmentManager();
        fragment1 = new Fragment1();
        fragment2 = new Fragment2();
        fragment3 = new Fragment3();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        fragmentTransaction.add(R.id.main_linearLayout, fragment1, "fragment1");
        fragmentTransaction.add(R.id.main_linearLayout, fragment2, "fragment2");
        fragmentTransaction.add(R.id.main_linearLayout, fragment3, "fragment3");
        fragmentTransaction.show(fragment1);
        //fragmentTransaction.hide(fragment2);
       // fragmentTransaction.hide(fragment3);
        fragmentTransaction.commit();
    }

    private void initView() {
        textView1 = (TextView) findViewById(R.id.text_1);
        textView2 = (TextView) findViewById(R.id.text_2);
        textView3 = (TextView) findViewById(R.id.text_3);
        textView1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                cutFragment(fragment1, fragment2, fragment3);
            }
        });
        textView2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                cutFragment(fragment2, fragment1, fragment3);
            }
        });
        textView3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                cutFragment(fragment3, fragment1, fragment2);
            }
        });
    }

    private void cutFragment(Fragment fragment1, Fragment fragment2, Fragment fragment3) {
        FragmentTransaction transaction = fragmentManager.beginTransaction();
        transaction.show(fragment1);
        transaction.hide(fragment2);
        transaction.hide(fragment3);
        transaction.commit();
    }


}