How To Use Log

C++

1. Add a statement to your gn file

    deps = [
        "${common_path}/log:appexecfwk_log_source_set",
    ]

    defines = [
        "APP_LOG_TAG = \"Appexecfwk_Core\"",
        "LOG_DOMAIN = 0xD001110",
    ]

2. Include header file #include "app_log_wrapper.h"
3. Control log print level AppLogWrapper::SetLogLevel(AppLogLevel::DEBUG); default is DEBUG
4. Example output format [fileName(functionName)] string

    // dynamic control log level
    AppLogWrapper::SetLogLevel(AppLogLevel::FATAL);

    // The following log statement will not print
    APP_LOGD("one %{public}d", 1234);
    APP_LOGI("two %{public}s", "1234");
    APP_LOGW("three %{private}s", "1234");
    APP_LOGE("four %{private}s", "1234");

    // The following log statement will print
    AppLogWrapper::SetLogLevel(AppLogLevel::DEBUG);
    APP_LOGD("five %{public}d", 1234);
    APP_LOGI("six %{public}s", "1234");
    APP_LOGW("seven %{private}s", "1234");
    APP_LOGE("eight %{private}s", "1234");

Java

1. import dependent in your class

import ohosos.appexecfwk.utils.AppLog;
import ohosos.hiviewdfx.HiLogLabel;

2. custom HiLogLabel (if you don't custom label, the default will be used)

private static final HiLogLabel LABEL = new HiLogLabel(HiLog.LOG_CORE, 0xD001110, "AppKit");

3. use AppLog interface

App_Log.d(LABEL, "log %{public}s", "123");
App_Log.i("log %{public}d", 123);