从 'screen pinned' activity 启动另一个 activity

Question

http://florent-dupont.blogspot.ro/2015/02/android-5-screen-pinning.html

From a pinned app, you cannot start a secondary app, unless this one has the same shared user ID (which means that the sharedUserIdis set in the AndroidManifest.xml and that second application is packaged with the same certificate). Other apps’ Activities won’t be allowed to be started and doing so (by using Context.startActivity()) will simply be ignored.

我已经完成了上面的两件事，但 startActivity() 仍然被忽略。

来自https://developer.android.com/reference/android/R.attr.html#lockTaskMode：

If the system is already in lockTask mode when a new task rooted at this activity is launched that task will or will not start depending on whether the package of this activity has been whitelisted.

在我看来，我已经采取了必要的步骤来让它发挥作用。

有人让这个工作正常吗？

    @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    ComponentName deviceAdmin = new ComponentName(this, AdminReceiver.class);
    mDpm = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);

    if (!mDpm.isAdminActive(deviceAdmin)) {
        Toast.makeText(this, getString(R.string.not_device_admin), Toast.LENGTH_SHORT).show();
    }

    if (mDpm.isDeviceOwnerApp(getPackageName()))
    {
        mDpm.setLockTaskPackages(deviceAdmin, new String[]{getPackageName(), "com.that.other.package"});

        try
        {

            enableKioskMode(true);

            PackageManager pm = this.getPackageManager();
            Intent it = pm.getLaunchIntentForPackage("com.that.other.package");

            if (null != it) {
                this.startActivity(it);
                Log.d(_TAG, "Started activity for com.that.other.package");
            }
        }

        catch (Exception e)
        {
            Log.e(_TAG, e.getMessage());
            finish();
        }


    } else {

        Toast.makeText(this, getString(R.string.not_device_owner), Toast.LENGTH_SHORT).show();
    }

}

private void enableKioskMode(boolean enabled) throws Exception
{
    if (enabled)
    {
        if (mDpm.isLockTaskPermitted(this.getPackageName()))
        {
            startLockTask();
            mIsKioskEnabled = true;
            mButton.setText(getString(R.string.exit_kiosk_mode));

        } else {

            Toast.makeText(this, getString(R.string.kiosk_not_permitted), Toast.LENGTH_SHORT).show();
        }

    } else {

        stopLockTask();
        mIsKioskEnabled = false;
        mButton.setText(getString(R.string.enter_kiosk_mode));
    }
}

Answer 1

原来我遗漏了 android:taskAffinity 标签。将它指向两个包中的相同字符串，startActivity() 应该开始运行。

从 'screen pinned' activity 启动另一个 activity

Launching another activity from a 'screen pinned' activity

android

digital-signature

android-manifest

android-screen-pinning