package com.example.activity_1;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class OneActivity extends Activity {

	Button button;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		Log.d("yuanbin", "----onCreate----");
		super.onCreate(savedInstanceState);
		setContentView(R.layout.one_layout);
	}

	@Override
	protected void onStart() {
		Log.d("yuanbin", "----onStart----");
		super.onStart();
	}

	@Override
	protected void onResume() {
		Log.d("yuanbin", "----onResume----");
		super.onResume();
	}

	@Override
	protected void onPause() {
		Log.d("yuanbin", "----onPause----");
		super.onPause();
	}

	@Override
	protected void onStop() {
		Log.d("yuanbin", "----onStop----");
		super.onStop();
	}
	@Override
	protected void onDestroy() {
		Log.d("yuanbin", "----onDestroy----");
		super.onDestroy();
	}
	@Override
	protected void onRestart() {
		Log.d("yuanbin", "----onRestart----");
		super.onRestart();
	}

	public void buttonClick(View v) {
		switch (v.getId()) {
		case R.id.one_btn: {
			break;
		}
		case R.id.two_btn: {
			startActivity(new Intent(this, TwoActivity.class));
			break;
		}
		case R.id.three_btn: {
			break;
		}
		default:
			break;
		}
	}
}
package com.example.activity_1;

import android.app.Activity;
import android.os.Bundle;

public class TwoActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.two_layout);
	}
}
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