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MIT License
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package org.hbabcock.btc; //from w ww .j a v a 2 s. c om import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; public abstract class SingleFragmentActivity extends FragmentActivity { protected abstract Fragment createFragment(); @Override public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.single_fragment_activity); FragmentManager fm = getSupportFragmentManager(); Fragment fragment = fm.findFragmentById(R.id.fragmentContainer); if (fragment == null){ fragment = createFragment(); fm.beginTransaction() .add(R.id.fragmentContainer, fragment) .commit(); } } }