public class MainActivity extends AppCompatActivity { private String TAG = "JJWorld"; private TextView textView; @SuppressLint("SetTextI18n") @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Log.i(TAG, "onCreate...."); initView(); textView.setText("开始时间:" + DateUtils.getNowTime()); } @Override public void onConfigurationChanged(@NonNull Configuration newConfig) { super.onConfigurationChanged(newConfig); switch (newConfig.orientation) { case Configuration.ORIENTATION_PORTRAIT: textView.setText("竖屏:" + DateUtils.getNowTime()); break; case Configuration.ORIENTATION_LANDSCAPE: textView.setText("横屏:" + DateUtils.getNowTime()); break; default: break; } } @Override protected void onStart() { super.onStart(); Log.i(TAG, "onStart...."); } @Override protected void onResume() { super.onResume(); Log.i(TAG, "onResume...."); } @Override protected void onPause() { super.onPause(); Log.i(TAG, "onPause...."); } @Override protected void onStop() { super.onStop(); Log.i(TAG, "onStop...."); } @Override protected void onDestroy() { super.onDestroy(); Log.i(TAG, "onDestroy...."); } private void initView() { textView = (TextView) findViewById(R.id.textView); } }
AndroidManifest.xml