Android开发中，常用的代码片段包括：，，1. 获取系统版本信息：String version = android.os.Build.VERSION.RELEASE;，2. 检查网络连接状态：ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo activeNetwork = cm.getActiveNetworkInfo(); boolean isConnected = activeNetwork != null && activeNetwork.isConnectedOrConnecting();，3. 启动新Activity：Intent intent = new Intent(this, TargetActivity.class); startActivity(intent);，4. 设置TextView内容：textView.setText("Hello World!");，5. 注册广播接收器：registerReceiver(receiver, new IntentFilter("com.example.MY_ACTION"));，6. 发送广播：sendBroadcast(new Intent("com.example.MY_ACTION"));，7. 创建对话框：AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("Title").setMessage("Message").setPositiveButton("OK", null).create().show();，8. 读取SharedPreferences中的值：SharedPreferences preferences = getSharedPreferences("MyPrefs", MODE_PRIVATE); String value = preferences.getString("key", "defaultValue");，9. 保存数据到SharedPreferences：SharedPreferences.Editor editor = preferences.edit(); editor.putString("key", "value"); editor.apply();，10. 获取当前时间戳：long timestamp = System.currentTimeMillis();