LifecycleSampleActivity.java

package org.android.textbook.lesson2.lifecyclesample;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.widget.EditText;
import android.widget.TextView;
import org.android.textbook.lesson2.lifecyclesample.R;

public class LifecycleSampleActivity extends Activity {
    private static final String LOG_TAG = "Lifecycle";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Log.i(LOG_TAG, "onCreate");
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.i(LOG_TAG, "onDestroy");
    }

    @Override
    protected void onPause() {
        super.onPause();
        Log.i(LOG_TAG, "onPause");
    }

    @Override
    protected void onRestart() {
        super.onRestart();
        Log.i(LOG_TAG, "onRestart");
    }

    @Override
    protected void onResume() {
        super.onResume();
        Log.i(LOG_TAG, "onResume");
    }

    @Override
    protected void onStart() {
        super.onStart();
        Log.i(LOG_TAG, "onStart");
    }

    @Override
    protected void onStop() {
        super.onStop();
        Log.i(LOG_TAG, "onStop");
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        Log.i(LOG_TAG, "onRestoreInstanceState");

        TextView tv = (TextView) findViewById(R.id.textView1);
        String s = savedInstanceState.getString("TEXT_KEY");

        if (s.length() > 0) {
            // TextView�Ɏ擾�����e�L�X�g���o�͂���
            tv.setText(s);
        }
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        Log.i(LOG_TAG, "onSaveInstanceState");

        // �ۑ�����e�L�X�g
        String s = "saved instance text";

        if (s.length() > 0) {
            // �e�L�X�g��Bundle�ɕۑ�
            outState.putString("TEXT_KEY", s);
        }
    }

}