Android---自定义Log

新建一个LogUtil的类

（debug时打印，release时不打印）

public class LogUtil {

    public static final int VERBOSE = 1;
    public static final int DEBUG = 2;
    public static final int INFO = 3;
    public static final int WARN = 4;
    public static final int ERROR = 5;
    public static final int NOTHING = 6;
    public static int level = VERBOSE;

    public static void v(String tag, String msg) {
        if (level <= VERBOSE) {
            Log.v(tag, msg);
        }
    }

    public static void d(String tag, String msg) {
        if (level <= DEBUG) {
            Log.d(tag, msg);
        }
    }

    public static void i(String tag, String msg) {
        if (level <= INFO) {
            Log.i(tag, msg);
        }
    }

    public static void w(String tag, String msg) {
        if (level <= WARN) {
            Log.w(tag, msg);
        }
    }

    public static void e(String tag, String msg) {
        if (level <= ERROR) {
            Log.e(tag, msg);
        }
    }
}

使用：

LogUtil.d("TAG", "debug log");