try { // 可能出现异常的代码 } catch (Exception e) { // 异常处理 Log.e("TAG", "exception occurred: " + e.getMessage()); }
try { // 可能出现异常的代码 } catch (Exception e) { // 异常处理 Log.e("TAG", "exception occurred: " + e.getMessage()); }
if (object != null) { object.method(); } else { Log.e("TAG", "object is null"); }
dependencies { implementation('com.android.support:appcompat-v7:27.1.1') { // 排除冲突的依赖库 exclude group: 'com.android.support', module: 'animated-vector-drawable' } }