以下代码的修改是针对android平台研发的,另外如果没有系统源码的情况下,通过逆向修改ROM中的对应文件,也是可以做到的。 之所以有这样需求,是因为假如是你自己的ROM,需要对自己的某个APP授予SMS写入权限,可以通过修改如下代码中的OTHERSMS_PACKAGE_NAME,换成你自己APP的package name就可以了。 如果类似QQ通讯录这种应用,在可以获取ROOT 的权限下,能不能做到呢,我认为也是可以实现的,可以在内存中注入相关的代码片段,尝试分析了一下QQ通讯录,发现它里面在获取ROOT后,是有注入操作的,但不是实现下面的功能,QQ通讯录当前的版本在Android 4.4 (KitKat)上,仍然存在问题。 不多说了,直接上代码,自己研究喽~ - diff --git a/src/java/com/android/internal/telephony/SmsApplication.java b/src/java/com/android/internal/telephony/SmsApplication.java
- index 0582df8..39dee4c 100644
- --- a/src/java/com/android/internal/telephony/SmsApplication.java
- +++ b/src/java/com/android/internal/telephony/SmsApplication.java
- @@ -49,6 +49,7 @@ public final class SmsApplication {
- static final String LOG_TAG = "SmsApplication";
- private static final String PHONE_PACKAGE_NAME = "com.android.phone";
- private static final String BLUETOOTH_PACKAGE_NAME = "com.android.bluetooth";
- + private static final String OTHERSMS_PACKAGE_NAME = "com.example.demo";
-
- private static final String SCHEME_SMS = "sms";
- private static final String SCHEME_SMSTO = "smsto";
- @@ -357,6 +358,20 @@ public final class SmsApplication {
- // No BT app on this device
- Rlog.e(LOG_TAG, "Bluetooth package not found: " + BLUETOOTH_PACKAGE_NAME);
- }
- +
- + try {
- + PackageInfo info = packageManager.getPackageInfo(OTHERSMS_PACKAGE_NAME, 0);
- + int mode = appOps.checkOp(AppOpsManager.OP_WRITE_SMS, info.applicationInfo.uid,
- + OTHERSMS_PACKAGE_NAME);
- + if (mode != AppOpsManager.MODE_ALLOWED) {
- + Rlog.e(LOG_TAG, OTHERSMS_PACKAGE_NAME + " lost OP_WRITE_SMS: (fixing)");
- + appOps.setMode(AppOpsManager.OP_WRITE_SMS, info.applicationInfo.uid,
- + OTHERSMS_PACKAGE_NAME, AppOpsManager.MODE_ALLOWED);
- + }
- + } catch (NameNotFoundException e) {
- + // No BT app on this device
- + Rlog.e(LOG_TAG, "3rd sms package not found: " + OTHERSMS_PACKAGE_NAME);
- + }
- }
- }
- return applicationData;
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