添加如下文件（官方demo中）
/*
* Copyright (C) 2020 Baidu, Inc. All Rights Reserved.
*/
package com.baidu.bikenavi_demo;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.util.Log;
import java.lang.reflect.Method;
import static android.os.Build.VERSION.PREVIEW_SDK_INT;
import static android.os.Build.VERSION.SDK_INT;
import static android.os.Build.VERSION_CODES.P;
public class ReflectHelper {
private static final String TAG = "ReflectHelper";
private static final int UNKNOWN = -9999;
private static final int ERROR = -20;
private static Object sVmRuntime;
private static Method setHiddenApiExemptions;
private static int unsealed = UNKNOWN;
static {
try {
Method forName = Class.class.getDeclaredMethod("forName", String.class);
Method getDeclaredMethod = Class.class.getDeclaredMethod("getDeclaredMethod", String.class, Class[].class);
Log.e(TAG, "getDeclaredMethod:" + getDeclaredMethod);
Class<?> vmRuntimeClass = (Class<?>) forName.invoke(null, "dalvik.system.VMRuntime");
Method getRuntime = (Method) getDeclaredMethod.invoke(vmRuntimeClass, "getRuntime", null);
setHiddenApiExemptions = (Method) getDeclaredMethod.invoke(vmRuntimeClass, "setHiddenApiExemptions", new Class[]{String[].class});
sVmRuntime = getRuntime.invoke(null);
} catch (Throwable e) {
Log.e(TAG, "reflect bootstrap failed:", e);
}
}
public static void unseal(Context context) {
if (SDK_INT < 28) {
// Below Android P, ignore
return;
}
// try exempt API first.
if (exemptAll()) {
return;
}
if (context == null) {
return;
}
ApplicationInfo applicationInfo = context.getApplicationInfo();
synchronized (ReflectHelper.class) {
if (unsealed != UNKNOWN) {
return;
}
unsealed = 0;
if ((SDK_INT == P && PREVIEW_SDK_INT > 0) || SDK_INT > P) {
return;
}
// Android P, we need to sync the flags with ApplicationInfo
// We needn't to this on Android Q.
try {
@SuppressLint("PrivateApi")
Method setHiddenApiEnforcementPolicy = ApplicationInfo.class
.getDeclaredMethod("setHiddenApiEnforcementPolicy", int.class);
setHiddenApiEnforcementPolicy.invoke(applicationInfo, 0);
} catch (Throwable e) {
e.printStackTrace();
unsealed = ERROR;
}
}
}
/**
* make the method exempted from hidden API check.
*
* @param method the method signature prefix.
* @return true if success.
*/
public static boolean exempt(String method) {
return exempt(new String[]{method});
}
/**
* make specific methods exempted from hidden API check.
*
* @param methods the method signature prefix, such as "Ldalvik/system", "Landroid" or even "L"
* @return true if success
*/
private static boolean exempt(String... methods) {
if (sVmRuntime == null || setHiddenApiExemptions == null) {
return false;
}
try {
setHiddenApiExemptions.invoke(sVmRuntime, new Object[]{methods});
return true;
} catch (Throwable e) {
return false;
}
}
/**
* Make all hidden API exempted.
*
* @return true if success.
*/
private static boolean exemptAll() {
return exempt(new String[]{"L"});
}
}
Application中做如下操作
public class BNaviDemoApplication extends Application {
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
ReflectHelper.unseal(base);
}
@Override
public void onCreate() {
super.onCreate();
SDKInitializer.initialize(this);
}
}
