fragment的管理

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    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();    }}
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